Makita GA4543C, GA5043C, GA4043C, GA4541C, GA4041C Necessary Repairing Tools, Lubrication, teeth

P 2/ 14

Repair

CAUTION: Repair the machine in accordance with “Instruction manual” or “Safety instructions”.

[1] NECESSARY REPAIRING TOOLS

Code No.	Description	Use for
1R028	Bearing setting pipe 20-12.2	mounting Gear housing cover to Armature
1R045	Gear extractor (Large)	separate Armature from Gear housing cover
1R232	Pipe 30	removing Coupling and Ball bearing 6903ZZ from large Spiral bevel gear
1R258	V block	supporting Armature and Bearing box
1R268	Spring pin extractor M3	disassembling Shaft lock mechanism
1R269	Bearing extractor	removing Ball bearings 627DDW/ 696ZZ from Armature
1R281	Round bar for Arbor 7-50	removing Switch knob from Switch lever
1R286	Round bar for Arbor 12-50	removing large Spiral bevel gear section from Bearing box
1R291	Retaining ring S & R pliers	removing Retaining ring S-9
1R340	Bearing retainer wrench	removing Bearing retainer 20-33 from Bearing box
1R350	Ring 60	supporting Gear housing when disassembling Shaft lock mechanism

[2] LUBRICATION

Apply Makita grease to the following portions designated with the black triangle and the gray triangle to protect parts and product from unusual abrasion.

Item No.	Description	Portion to lubricate	Lubricant	Amount
1	Gear housing	Gear room	Makita Grease SG No. 0:	17g
6	Gear housing cover	O-ring 27.5 of 6 Gear housing cover	Makita Grease SG No. 0:	a little
56	C-type plate	Outer surface where 58 Coupling contacts	Makita Grease FA No. 2:	a little
58	Coupling	Cylindrical portion where 56 C-type plate contacts	Makita Grease FA No. 2:	a little
70	Spindle	Drum portion where 58 Coupling contacts	Makita Grease FA No. 2:	a little
Fig. 1		Joint sleeve	6
		56
		58

Spiral bevel gear (large)

Ball bearing 6903ZZ

70

1

[3]DISASSEMBLY/ASSEMBLY

[3]-1. Note in Disassemble (general)

Note: As listed below, the grinders use different spiral bevel gears, and they are not interchangeable. Referring to this list, therefore, be sure to use correct gears for replacement.

Model No.		No load	Smaller spiral bevel gear	Larger spiral bevel gear
		speed: min.ˉ¹	(on armature shaft)	(on spindle)
GA4041	GA4541C
GA4541	GA5041C	11,000	10 teeth	38 teeth
GA5041	GA4543C
GA4041C GA5043C
GA4043C
GA6041		9,000	9 teeth	41 teeth