Service Manuals, User Guides, Schematic Diagrams or docs for : MAKITA 58029-WW-1
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T
ECHNICAL INFORMATION
Subject Changes of Handle, etc. and Addition of Dustproof Washer 55
58029
For Models HR4000C
Description In order to prevent particles of dust from coming in through ventilating ducts and locking
carbon brushes;
1) The position of ventilating ducts has shifted to rear handle from crank housing.
2) Baffle Plate has been modified in accordance with the shift of ventilating ducts.
3) Dustproof Washer 55 has newly been inserted between Change Lever and
Crank Housing Cover.
See page 2 and 3 for the details of these changes and how to disassemble the new type.
Current New
Cooling air
containing
particles of dust
Cooling air
cleaner than the current
Interchangeability(I/C)
Item No. Current part Q'ty I/C New part Q'ty Note
Handle Handle For all countries
096 1 No 1
416290-9 416985-4 except China and
Hong Kong
Handle Complete Handle Complete For China and
096 1 No 1
150858-8 151762-4 Hong Kong
Crank Housing Cover Crank Housing Cover
Complete 1 No Complete 1 Interchangeable as a set
045
159967-0 151761-6
Baffle Plate Baffle Plate
098 1 No 1
416296-7 416987-0
Dustproof Washer 55 1
130
421698-4
Implementation
From serial No.84737E (Feb.,1999)
Current New
(Part No.159967-0) (Part No.151761-6)
Crank
Housing
Cover
Complete modified to receive Dustproof
Washer 55
cross section view of Change Lever side
Ventilating Ducts have been eliminated.
(Part No.416290-9 or 150858-8) (Part No.416985-4 or 151762-4)
Handle
or
Handle
Complete
Ventilating Duct
(Part No.416296-7) (Part No.416987-0)
Baffle Plate
Dustproof Washer 55
(421698-4)
Always set Dustproof Washer 55
Crank Housing Cover Complete
to Crank Housing Cover first,
(151761-6)
and then set Change Lever in place.
Change Lever Dustproof Washer 55
(421698-4)
How to Disassemble:
1) Crank Housing Cover:
Follow the disassembling steps as described below,
and it would be much easier to disassemble the new type machine.
1 Keep the space just a little between
the outside of round protrusion of Crank Housing
and the inside of Crank Housing Cover.
2 Insert a (-) screwdriver into the gap between
Crank Housing Cover and Motor Housing.
2
5 3 Move Crank Housing Cover towards the side of
Drill Chuck while lifting up Crank Housing Cover
with a (-) screwdriver.
4 Move Crank Housing Cover till it comes over
the round protrusion of Crank Housing.
5 Tap the point of Crank Housing Cover
(pointed with an arrow in the illustration)
with a resin-head hammer,
3 and Crank Housing Cover can be removed
2) Armature Ass'y:
It is recommended to use a repairing tool (Large Gear Extractor/ Part No.1R045)
when taking out Armature Ass'y with ease because of the change of Baffle Plate.
Turn clockwise
Large Gear Extractor
(Part No.1R045)
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