Makita AR410HR dimensions With one side, Painted white

P 16/20

Repair

[3]DISASSEMBLY/ASSEMBLY

[3]-7. Trigger Valve Section

ASSEMBLING

1)Mount O rings to Pilot valve as described in Fig. 30.

2)Assemble Trigger valve section. (Refer to the bottom illustration in Fig. 29.)

When assembling Trigger valve guide to Trigger valve case, push it toward Trigger valve case until it snaps in place.

Fig. 30

Two different kinds of O rings of size 8 are mounted on Pilot valve:

A O Ring 8 (213984-5), of Nitrile rubber, with one side painted white for identification

BO Ring 8 (213985-3), of Urethane rubber Do not confuse these two O rings because they are not interchangeable, and be sure to mount them in position as illustrated on right.

O Ring 8	B	A O Ring 8
(213985-3)		(213984-5),
		with one side
		painted white

Pilot valve O Ring 18

3)Set Trigger valve section in Housing as illustrated in Fig. 31.

Fig. 31

Housing

Trigger valve section

4)Secure Trigger valve section to Housing with Spring pin 3-28 as described in Fig. 32

Fig. 32

Use 1R268 as a guide jig as illustrated below.

1.Insert two 1R268’s through Housing in the groove of Trigger valve section.

Strike the Spring pin 3-28 gently and repeatedly until 1R268 is pushed out from Housing.

	Spring pin
1R268	3-28

2.Then insert Spring pin 3-28 from the opposite side, and fit its hole over the stepped end of 1R268.