Makita GA4042C Technical Information

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Repair
DISASSEMBLING
ASSEMBLING
(2) Disassemble the commutator end of Armature as drawn in Fig. 3.
Note: This step is required for the models with electronic control system of GA4040C, GA4540C, GA5040C,
GA6040C, GA4542C, GA5042C, GA6042C.
Fig. 3
1. Pick up three tabs of
Self lock 6 with tweezers
to remove it from Armature.
2. Remove Magnet sleeve,
Wave washer 6 and
Labyrinth rubber ring 22.
3. Remove Ball bearing 627DDW with 1R269. 4. Remove Flat washer 7 and
Insulation washer.
Self lock 6
Tabs
Tweezers
Wave washer 6
Magnet sleeve
Labyrinth rubber ring 22
Ball bearing 627DDW
1R269
Flat washer 7
Insulation washer
(1) Assemble small Spiral bevel gear to Armature end by reversing the disassembly procedure. (Refer to Fig. 2)
(2) Assemble the commutator end of Armature as drawn in Fig. 4.
Note: This step is required for the models with electronic control system of GA4040C, GA4540C, GA5040C,
GA6040C, GA4542C, GA5042C, GA6042C.
Fig. 4
2. Press down Self lock 6 until
Wave washer 6 gets flat.
3. Magnet sleeve is stabilized
between Self lock 6 and
Wave washer 6 by the reaction
force of Wave washer 6.
1. Return tabs of Self lock 6 to their
normal shape before assembling.
Then, mount Wave washer 6 to
the commutator end of Armature.
Note: Be careful to their directions.
Refer to the drawings in Fig. 4.
Wave washer 6
Magnet sleeve
Self lock 6
Wave washer 6
Magnet sleeve
Self lock 6
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Armature, Spiral bevel gear [small one] (cont.)

Makita GA4042C Specifications

General

Brand	Makita
Model	GA4042C
Category	Grinder
Language	English