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SA7000C-TE


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T     ECHNICAL INFORMATION
    Models No.                     SA7000C
                                                                                                                     PRODUCT
                                                                                                                          P1/8


    Description                    Angle Sander 180mm (7")                                                L


CONCEPT AND MAIN APPLICATIONS                                                               H
  Model SA7000C is a new electronic angle sander developed
  as a series model of GA7010C/GA9010C.
  And its advantages are;                                                               W
  *Powerful with 1600W motor
  *Yet still has high heat-resistance even in sanding at the                                          Dimensions: mm (")
   lowest speed.
                                                                                                   Length (L) 453 (17-7/8)
  *Electronic with soft start, current limiter and constant speed
   under load                                                                                      Width (W)   170 (9-7/8)
                                                                                                   Height (H)  136 (5-3/8)


 Specification
                                                                                Continuous Rating (W)
       Voltage (V)               Current (A)                Cycle (Hz)                                        Max. Output(W)
                                                                               Input            Output
            110                        15                      50 / 60         1,600             700              2,500
            120                        14                      50 / 60         1,600             700              2,500
            220                        7.7                     50 / 60         1,600             700              2,700
            230                        7.3                     50 / 60         1,600             700              2,700
            240                        7.0                     50 / 60         1,600             700              2,700


                         Abrasive disc                                        180 (7)
    Capacity: mm (")
                         Pad                                                  180 (7)
    No load speed: min.-1 = rpm.                                         0 - 1,500/4,000
                                  Current limiter                             Yes
                                  Speed adjusting dial                        Yes
    Electronic features
                                  Soft start                                  Yes
                                  Constant speed                              Yes
                                  Australia                                 2.0 (6.5)
    Cord length: m (ft)
                                  Others                                    2.5 (8.2)
    Net weight: kg (lbs)                                                    3.2 (7.1)


 Standard equipment
   *Lock nut wrench 35 .....................................         1
   *Sanding lock nut 14-18 ...............................           1
   *Rubber pad 170 ............................................      1
   *Head cover ...................................................   1
   *(+) Round head screw M14 .........................               2

   Note: The standard equipment for the tool shown may differ from country to country.



 Optional         accessories
   *Assorted accessories for 180mm (7") angle sander
                                                                                                                             P2/8

Features             and benefits

               High Heat-Resistant Makita Motor                                                  Speed Adjusting Dial
                                                                                         Allows you to adjust the maximum
  Provides powerful rotation with high power input                                       rotation speed to material or desirable
  of 1600W, yet with minimal temperature rise in the                                     finish in 6 stages;
  Field even in sanding at the lowest rotation speed.                                    1) 1,500rpm 2) 2,000rpm 3) 2,500rpm
                                                                                         4) 3,000rpm 5) 3,500rpm 6) 4,000rpm
  Easy-to-Operate Large
  Spindle Lock Button

                                                                                                        Trigger Action
       Plastic Head Cover
                                                                                                    Variable Speed Control
 Shuts off the heat to hand,                                                                     Practical for sanding down corners
 allowing you to sand while                                                                      or controlling the amount of stock
 grasping the tool head.                                                                         removal.


  O Rings for Protection from                                                             Electronic with
  Grease-Leakage                                                   1) Constant speed control minimizes reduction in rotation
  Placed in the following portions;                                   speed under load, increasing operation efficiency.
  *Joint between gear housing and                                  2) Soft start feature minimizes startup reaction torque.
   Bearing box                                                     3) Current limiter protects motor from heat damage when
  *Shaft lock pin installation hole                                   the machine is overloaded. And automatically restarts
                                                                      with a soft start when the load is lightened.


Comparison                   of products
 [1] Specifications
                              Mode No.          Makita                         A                            B               C
        Specifications                        SA7000C               A1                  A2                  B               C
  Pad diameter: mm (")                         180 ( 7 )         180 ( 7 )           180 ( 7 )          180 ( 7 )        180 ( 7 )
  Power input: W                                 1,600            1,100                750                1,200           1,500
  No load speed: min-1=rpm                  0 - 1,500/ 4,000   1,400 - 3,400       1,900/3,400        1,800 - 4,800    1,400 - 4,200
  Electronic




                Constant speed under load         Yes              Yes                  No                 Yes             Yes
                Soft start                        Yes              Yes                  No                 Yes             Yes
                Current limiter                  Yes               Yes                  No                 No              Yes*
                                                 Dial                               Mechanical
  Speed change                                    plus             Dial                                   Dial             Dial
                                            Trigger switch                           2-speed
  Auto cut-out brush                             Yes               Yes                 Yes                 Yes             Yes
  Plastic head cover                             Yes               No                  No                  No              Yes
  Double insulation                               Yes              Yes                 Yes                 Yes             Yes
  Power supply cord: m (ft)                    2.5 (8.2)         2.5 (8.2)           2.5 (8.2)          4.0 (13.1)      4.0 (13.1)
                        Length                453 (17-7/8)      416 (16-3/8)        395 (15-1/2)       385 (15-1/8)    338 (13-1/4)
  Dimensions: mm (") Width                   170 (6-11/16)     170 (6-11/16)       170 (6-11/16)      176 (6-15/16)     107 (4-1/4)
                                  Height      136 (5-3/8)        118 (4-5/8)         123 (4-7/8)        96 (3-3/4)      130 (5-1/8)
  Net weight: kg (lbs)                         3.2 (7.1)         3.0 (6.6)           2.9 (6.4)          2.1 (4.6)        2.5 (5.5)
                                                Side grip        Side grip            Side grip        Grip       Grip
                                            Lock nut wrench Lock nut wrench Lock nut wrench Sanding lock nut Lock nut wrench
  Standard equipment                        Sanding lock nut    Rubber pad             Wrench          Pad     Head cover
                                               Rubber pad    Abrasive disc (5pcs)    Rubber pad              (+) R. H. screw
                                               Head cover      Wool bonnet        Abrasive disc (5pcs)
                                             (+) R. H. screw                        Wool bonnet

  *electronic control plus Thermistor
                                                                                                                        P3/8

Comparison                            of products
[2] Field Temperature Rise
  Each model was tested under the following conditions,                                       10 - 40N
  which we concluded is the heaviest duty use from our
  market research;
  1) Rotational speed: at the lowest speed of each model
  2) Operating time: for 10 minutes
  3) Pushing pressure applied to the machine: 30 - 40N
  4) Test material: Granite
  5) Polishing tool: with a Cloth polishing pad
                                                                                                         Granite


  As illustrated below, the field temperature rise of Model SA7000C is lower than any other competition.
  This result shows that Makita SA7000C have very high heat-resistance even in the toughest application.


                           200
                                 Competitor B's
                                 Model B
                                                    Competitor C's                                Competitor A's
                                                    Model C                                       Model A1
                           150
  Temperature (C degree)




                           100
                                                                                                  Competitor A's
                                                                                                  Model A2
                                                                     Makita SA7000C
                           50

                                                                                                     room temperature

                            0
                                 0                                             5                                         10
                                                                      Operation time (min.)
                                                                                                                    P4/8
Repair
CAUTION: For your safety, before maintenance or repair, be sure to;
         1. Disconnect the machine from the power source.
         2. Remove the wheel from the machine.

[1] Necessary Repairing Tools
          Tool No./ Description                                             Use for
 1R035/ Bearing Setting Plate             Press-fitting Ball bearings
 1R045/ Gear Extractor (large)            Removing Gear housing cover and Bearing box
 1R229/ 1/4" Hex Shank Bit M5             Removal/Installation of the Hex socket head bolts that fasten Bearing box
 1R269/ Bearing Extractor                 Removing ball bearing 608DDW on the commutator end of Armature shaft
 1R291/ Retaining Ring S and R Pliers     Removal/Installation of the Retaining ring that retains larger Spiral bevel gear
 1R340/ Bearing Retainer Wrench           Removal/Installation of Bearing retainer

[2] Lubrication                                                              Fig. 1
Put 40g of Makita grease SG. No.0 into the gear room of Gear housing
for a long gear life. (Fig. 1)                                                   Gear room




[3] Disassembling and Assembling
[3]-1. Replacing Armature and Ball Bearing 6201LLB
DISASSEMBLING
Note: Disassembling can be done without disassembling Gear             Fig. 2
       housing section.
1) After removing Carbon brushes, Remove Grip 36 complete.
   Separate Head cover from Gear housing by removing two M14x10
   (+) Round head screws with Phillips screwdriver No.3 or the like.                                     Slide Gear
2) Separate Gear housing section from Motor housing by removing                                          housing cover.
   four 5x30 Tapping screws.
3) Slide Gear housing cover until you see the corners on the end of
   Motor housing. And then by striking two of the corners with plastic
   hammer, the assembly of Armature and Gear housing cover can be
   separated from Motor housing. (Fig. 2)
4) Remove Hex nut M6 by turning counterclockwise while holding
                                                                                                    Strike two corners
   Armature firmly by hand. Now smaller Spiral bevel gear can be
                                                                                                    on the end of
   removed from Armature shaft by hand.
                                                                                                    Motor housing.
4) Remove Gear housing cover from Armature using Gear Extractor,
   large (No.1R045). (Fig. 3) Ball bearing 6201LLB is still on Gear
   housing cover at this step. Therefore, remove the bearing with
   arbor press and a round bar. (Fig. 4)
 Fig. 3                                                                 Fig. 4
  Gear Extractor, large (No.1R045)           Gear housing cover
                                                                                      Round bar




                                                                             Gear housing cover
                             Ball bearing 6201LLB                                Ball bearing 6201LLB
                                                                                                                    P5/8
Repair
ASSEMBLING
Follow the reverse of disassembling procedure as described below.
1) Insert ball bearing 6201LLB straight into Gear housing cover.
   And then put Bearing setting plate (No.1R035) on arbor press, and then put Gear housing cover on Bearing setting plate.
   Press-fit Armature to Gear housing cover using arbor press. (Fig. 5)
2) Install smaller Spiral bevel gear on Armature shaft, and tighten Hex nut M6 securely with a spanner 10.
   And then install the assembly of Armature and Gear housing cover on motor housing, and align the screw holes on Gear
   housing cover with those of Motor housing.
3) Aligning the protrusion on gear housing with that on Motor housing, fit Gear housing to gear housing cover. (Fig. 6)
   Fasten Gear housing to Gear housing cover and Motor housing with four 5x30 Tapping screws.
4) Install Head cover and Grip 36 complete.
Fig. 5                                                              Fig. 6
                                                                      Gear housing             Gear housing cover


         Armature
                                                                                                        Motor housing

                                           Gear housing cover




                                         Bearing Setting Plate               Align the projection on Gear housing
                                                  (No.1R035)                 with that on Motor housing.



[2]- 2. Replacing Spiral Bevel Gear 43 and Ball Bearing 6202DDW
DISASSEMBLING
Note: Disassembling can be done without disassembling Gear housing section.
1) Remove Sanding pad.
2) Using a Makita impact driver and Hex shank bit M5 (No. 1R229), remove four M5x16 Hex socket bolts that fasten
   Bearing box to Gear housing.
3) Insert two slotted screwdrivers into two diagonal positions on the slit between Bearing box and Gear housing.
  And twist the two screwdrivers at the same time till Bearing box is lifted up approximately 3mm.
  And then insert the screwdrivers further into the slit, and remove Gear housing from Gear housing cover by lifting it
   up with the screwdrivers. (Fig. 7)
Fig. 7


                                Slotted screwdriver




         Bearing box

                Gear hosing


                                                                                                 (continued to next page)
                                                                                                                   P6/8
Repair
[3]- 2. Replacing Spiral Bevel Gear 43 and Ball Bearing 6202DDW (cont.)
DISASSEMBLING
3) Remove Ball bearing 608LLB from spindle using Bearing extractor (No.1R269) as illustrated to left in Fig. 8.
4) Remove Retaining ring S-15 from Spindle using Retaining ring S and R pliers (No.1R291) as illustrated
   to right in Fig. 8. Now Spiral bevel gear 43 and Woodruff key can be removed from Spindle by hand.
5) Remove spindle by pushing with Gear Extractor, large (No.1R045). (Fig. 9)
Fig. 8                                                                        Fig. 9

              Bearing Extractor                          Retaining Ring
                   (No.1R269)                            S and R Pliers
                                                         (No.1R291)             Gear Extractor, large (No.1R045)




                     Bearing box

                                                             Retaining
                                                             ring S-15


                                                                                                        Spindle
                     Ball bearing
                     608LLB

6) Hold Bearing box securely with vise, and remove           Fig. 10
   Bearing retainer from Bearing box using Bearing
                                                              Turn the handle of
   retainer wrench (No.1R340) as illustrated in Fig. 10.
                                                              Bearing retainer
7) Remove Ball bearing 6202DDW from Bearing box                                                               Bearing box
                                                              wrench (No.1R340)
   by hitting it straight against the surface of work bench.
                                                              counterclockwise.
   If cannot be removed, use arbor press.




ASSEMBLING                                                                 Fig. 11
Follow the reverse of disassembling steps.
Note: When installing Spiral bevel gear 43 onto Spindle,
      Be careful not to allow Woodruff key 4 to be out of position.         Spiral bevel gear 43
      It is recommended to apply grease to the key slot on Spindle
      in order to hold the Woodruff key securely in place. (Fig. 11)

                                                                                Woodruff key 4



[3]- 3. Replacing Shaft Lock Section
DISASSEMBLING                                                              Fig. 12
1) Remove Bearing box from Gear housing. (Fig. 7)
2) Pull off Shoulder pin 7 with pliers while pushing Pin cap with a  Shoulder pin 7                        Gear housing
   finger. (Fig. 12)
Note: Do not pull off shoulder pin 7 without holding pin cap because Compression
       Compression spring 7 would sling Pin cap.                     spring 7
 ASSEMBLING
Follow the reverse of disassembling steps.
Note: Do not reinstall removed Pin cap because removal of Shoulder
      pin 7 damages the inside surface of Pin cap. Be sure to remove                 Pin cap
      plastic dust of Pin cap from Shoulder pin 7 and to install it onto
      a brand-new Pin cap.
                                                                                                                                      P7/8
Circuit                diagram
Fig. 13


                                                                      Blue or white
                      Connector                                                           Insulated
                                                                                          connector
                                                                                                               Field
                                                                                                                                     Insulated
                                                                       Controller                                                    connector
 Power supply cord




                                                                                                                [Pickup coil side]
                                   Switch

                                                                                  Pick up coil                         Insulated
                                                                                                                       terminal
                                                                            Heat shrink tube
                                         Speed adjust dial

                                                                                                          Color index of lead wires' sheath
                                              Noise                                                        Black
 The parts illustrated in this                suppressor                                                   White
 gray square are not used                                                                                  Red
 for some countries.                                          Insulated                                    Orange
                                                              connector             Choke coil             Blue


Wiring    diagram
 [1] Wiring on Motor Housing
                                                                                                                            Motor housing
 1) Draw the lead wires of (a), (b), (c), (d), (e) and (f) through
    the openings (areas colored gray), and hold them with lead wire holders. (Fig. 14)
 2) And then route the lead wires as illustrated below in Fig. 14.
 Note: Illustrated in Fig. 14 is Motor housing viewed from the side of A.
                                                                                                                                       [A]
Fig. 14

                                                           (b) Field lead wires (black)

               Put insulated connector
               in this compartment                                                                     (d) Connecting lead wire (black)
               on Motor housing.                                                                          of brush holder



                                                                                                       (e) Connecting lead wire (black)
                                                                                                           of brush holder
                                                                Lead wire
                                                                holders                                    Put insulated connector
                                                                                                           in this compartment
 (a) Field lead wire                                                                                       on Motor housing.
             (white)
 (c) Field lead wire
             (black)                                                                              Lead wire from Choke coil (orange)*
 Lead wire from                                                                                   (f) Field lead wire (black)
 Choke coil (orange)*
                                                                                                      Put (f) Field lead wire (black) on the
                                             Choke coil*                          Pickup coil         lead wire from Choke coil (orange)*
                                                           Put choke coil* into                       when holding them with lead wire
                                                           this opening.                              holder.


                                                                                                 *Some countries do not use Choke coil.
                                                                                                                     P8/8
Wiring       diagram
 [2] Wiring of the Lead Wires of Pickup Coil
                                                                                              Motor housing
 1) First, route the white lead wire of pickup coil under the rib.
    And then hold both of the white and the black lead wires
    with the lead wire holder. (Fig. 15)
 2) When installing Handle (L) onto Motor housing, route the                                           Pickup coil
    two lead wires as illustrated in Fig. 16.
   Fig. 15                                                           Fig. 16
                      Lead wire holder
                                                                                        Rib




     Lead wire of
     pickup coil
     (black)

     Lead wire of
     pickup coil                                   Pickup coil
                                         Rib                               Handle (L)                 Boss on Handle (L)
     (white)

 [3] Wiring in Handle
   Fig. 17


       Before setting Switch in place, hold the three (or four) lead wires with the lead wire holders under switch as
       illustrated below. When using Choke coil, place the lead wire d under other lead wire as illustrated below.
        Lead wire holders
                                                            a) Lead wire from Controller (blue or white)
                                                            b) Field lead wire (white)
                                                            c) Lead wire from Controller (red)
                                                            d) Lead wire from Choke coil (red)*

                                                            Note: The position of b and that of d are replaceable.


                                                   With Lead wire holder A, hold the lead wires that connect
                                         Lead wire
                                                   Controller with Connector on Switch.
                                         holder A
                                                   With Lead wire holder B, hold the other lead wires.
                                     Lead wire     At this time, put the lead wire from Controller (blue or white)
                                     holder B      and the lead wire from Choke coil (orange)* under the other
                                                   lead wires.
     Noise suppressor*
                                                                                               Speed adjust dial
                                                                                               Controller
                                   Switch
                                                                                                Route the lead wires
                                                                                                that connect Controller
                                                                                                with Speed adjust dial
                                                                                                between these ribs, and
                                                                                                put them under the dial.
                                Insulated connector
    Insulated connector*          Lead wire holder C                           Rib Boss
    (Use for connecting the
     lead wire from Choke          With Lead wire holder C, hold more
     coil with the lead wire       than one lead wire that is connected         Route lead wires between rib and boss
     from Noise suppressor.)       with this insulated terminal.                and between rib and wall of handle (L).

                                                     Note: Some countries do not use the electrical parts with an asterisk.



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