Makita HR4030C Technical Information page 5

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epair
[3] DISASSEMBLY/ASSEMBLY
[3] -2. Handle Section, Tool Holder, Barrel Complete, Piston, Connecting Rod (cont.)
ASSEMBLING
1) Assemble O ring 22 to Piston, then connect Connecting rod with Crank shaft in Crank housing complete.
(Fig. 7 in page 4)
2) Put Cylinder section into Crank housing complete, and insert Piston into Cylinder section.
Align each Key 4 on Cylinder section with the corresponding groove on the inside surface of Spiral bevel gear 27,
then insert Cylinder section into Spiral bevel gear 27 until it stops. (Fig. 6 in page 4)
3) Do the reverse of 2) and 1) of the disassembling steps. (Figs. 5, 4 in page 4)
Note:
1. Tool holder is not reversible when assembled to Barrel complete.
Be sure to assemble as illustrated in Figs. 8, 8A.
2. Do not forget to place O ring 48 between Tool holder and Barrel complete.
3. Do not confuse M6x30 Hex socket bolts that fasten Barrel complete to Crank housing with M6x25 that fasten
Tool holder to Barrel complete.
4. Be careful not to twist X ring 28 when assembling it to Tool holder. Lubricate the lip portion of X ring 28
with reference to [2] Lubrication in page 2 when Impact bolt is inserted.
Fig. 8
Tool retainer must swivel in the direction of the gray arrow.
Tool retainer
Tool holder
Barrel complete
HR4030C
Fig. 8A
HR4041C
Tool retainer must be placed on Motor housing side.
Tool retainer
Tool holder
Barrel complete
Motor housing
P 5 /13