Makita HM1810 User Manual

P 10/ 20
Repair
[3] DISASSEMBLY/ASSEMBLY
[3] -4. Disassembling/Assembling Barrel Section
DISASSEMBLING
ASSEMBLING
1) Remove Stopper, Connecting rod (for balancer reciprocating) and Crank box. (See 1) to 5) of [3] -3.)
2) From Crank housing, separate Barrel then the assembly of Cylinder liner 62 and Balancer complete. (Fig. 30A)
Note: When replacing Barrel with new one, replace Plate (the guide for Balancer complete) at the same time.
When reusing two M5x16 Hex socket bolts, apply appropriate amount of adhesive to them. (Fig. 30B)
3) Take out Striker from Cylinder liner 62, then remove O ring 52 from Striker. (Fig. 30C)
4) Take out Piston and Connecting rod (for Piston reciprocating) from Crank housing complete, and remove O ring 52
and O ring 55 from the removed Piston. (Fig. 30D)
Do the reverse of the disassembling steps.
Note:
Striker and Spacer are not reversible when assembled to Cylinder liner 62. Be sure to install as illustrated in Fig. 31.
Fig. 30A Fig. 30B
Fig. 30C Fig. 30D
Fig. 31
Piston
Barrel Flat washer 63
Crank housing comp.
Piston and Connecting Rod
O ring 52 O ring 55
Striker O ring 52
[Tool retainer side]
[Crank housing side]
Cylinder liner 62
Spacer
Striker
Pin 5
Crank housing completeGasketBarrel
Fig. 32
CORRECT
WRONG
[Cross section]
Do not forget to put Flat washer 63 between Cylinder
liner 62 and Crank housing complete.
When assembling Barrel to Crank housing complete,
first fit Pin 5 in the hole on Barrel, and put the pin
through the hole of Gasket.
Then fit Barrel to Crank housing complete so that
Pin 5 is inserted into the hole on Crank housing
complete. (Fig. 32)
Hex socket head
bolt M5x16
Plate
SpacerCylinder liner 62
Balancer complete
Barrel

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