Makita HM1810 User Manual

P 6 / 20
Repair
[3] DISASSEMBLY/ASSEMBLY
Fig. 10
1) After separating Gear housing from Crank housing, remove Ball bearing 6302LLB with Gear extractor, large
(No.1R045). At this time, be careful not to lose Pin 5. Then using Retaining ring S and R pliers (No.1R291)
remove Retaining ring S-20. (Fig. 10)
2) Put Gear housing on Pipe Ring (No.1R023), and press down Crank shaft using arbor press. (Fig. 11)
3) Now Crank shaft complete, Spur gear 47 and Sleeve 25 can be removed from Gear housing. (Fig. 12)
Note: Be careful not to lose two woodruff keys.
4) Two 6202 Ball bearings can be removed from the assembly
of Helical gear 50 and Spur gear 22 using Bearing extractors
(No.1R263) as illustrated in Fig. 13.
5) As illustrated in Fig. 15, the assembly of Helical gear 50 and
Spur gear 22 can be disassembled using Pipe ring (No.1R023),
Round Bar for Arbor 14-100 (No.1R243), arbor press and
two appropriate steel plates.
Note: Be careful not to lose two Woodruff keys.
[3] -2. Disassembling/Assembling Gear Section
Ball bearing
6302LLB
Retaining
ring S-20
Gear housing
Fig. 11 Fig. 12
Crank shaft
complete
Crank shaft complete
Arbor press
Pipe Ring
(No.1R023)
Spur gear 47
Sleeve 25
Woodruff key 4
Fig. 13
Helical gear 50 Spur gear 22
Bearing Extractor
(No.1R263)
Ball bearing 6202
(on Helical gear 50 side)
Ball bearing 6202
(on Spur gear 22 side)
Fig. 14
Pipe Ring (No.1R023)
Round bar
for arbor 14-100
(No.1R243 )
Arbor press
Woodruff key 4
Spur gear 22
Metal plates
for supporting Gear
Helical gear 50
DISASSEMBLING

Makita HM1810 Specifications

General

Input power	2000 W
Impact energy (max)	44.9 J
Vibration level (chiseling)	9 m/s²
Toolholder	6 mm
Impact rate	1100 bpm
Product color	Black, Blue

Weight and Dimensions

Weight	32000 g