Graco Inc 224200, 308131, 224400 Fluid Adjustment Assembly Repair, 45c 45a  45b  45d  41 45e

Service

Fluid Adjustment Assembly Repair

1.Prepare the gun for service as instructed on page 22.

2.Using a 14 mm socket wrench, remove the fluid adjustment assembly (45). See Fig. 21.

3.Turn the stem (45a) fully clockwise and remove the sleeve stop (45e).

4.To completely disassemble the fluid adjustment assembly, the sleeve stop (45e) must be assembled back on to the stem (45a). Turn the stem until the sleeve is protruding about 0.4 inches (10 mm).

5.To remove the sleeve (45d), hold the cap (45c) and turn the sleeve stop (45e) counterclockwise with a wrench.

6.Remove the stem (45a) and o-ring (45b).

7.Repair or replace any damaged parts. Lubricate the o-ring (45b) with petroleum jelly.

8.Carefully apply low strength (purple) Loctite or equivalent thread sealant to the sleeve (45d) external threads. Turn the sleeve in with the sleeve stop (45e) until it bottoms out, then back it out 1/8 turn.

CAUTION

Do not allow Loctite to get onto the stem (45a) during assembly or the stem will not turn after assembly.

DETAIL

0636A

45

45c

45a

 45b  45d

44

39

7  41 23

45e

40, 42

Lubricate o-rings with petroleum jelly

Carefully apply low strength (purple) Loctite or equivalent to sleeve (45d) external thread. Turn sleeve in with sleeve stop (45e) until it bottoms out, then back out 1/8 turn. Allow Loctite to cure overnight.

Do not remove u-cup (42) unless damaged. Install with lips facing into handle. Tighten packing nut (40) until it bottoms.

0387A

9.	Place the fluid adjustment assembly on the work-	Fig. 21
	bench with its threaded end facing down and allow
	the Loctite to cure over night.
10.	After the Loctite has cured, install the fluid
	adjustment assembly into the gun. Tighten the
	adjustment knob (45c) with the 14 mm socket
	wrench.

30 308131