9
TRIGGER ADJUSTMENT PROCEDURE
When correctly adjusted there should be no stem (5) travel when trigger lock
(32) is engaged and trigger operation is attempted. A visual check can be made
by detecting no stem nut (20) movement. Adjust main stem (5) to engage
trigger guide (26) approximately 3/16" which should result in 7/64" to 5/32"
of stem travel when mounted in plastic housing (refer to Assembly
Procedures 9-12).
RETROFIT INSTRUCTIONS FOR 30L GUNJET
®
DISASSEMBLY OF 30L GUNJET
(Refer to Parts List PL 30L)
1.
Make sure all air, electrical and liquid lines are turned off to the pump.
2.
Release all the pressure and liquid from the hose to GunJet by
operating trigger until fluid ceases to flow.
3.
Set trigger lock in
locked
position and remove gun from supply hose.
4.
Remove cap (3) and valve seat (4).
5.
Remove seven screws (1).
6.
Remove right housing (2), trigger lock (22), and lock spring (23).
7.
Remove inlet body (5) and trigger (15) as a sub assembly (items 5
through 16) from left housing (2).
8.
Remove spring sub-assembly (items 17 through 21).
9.
While holding trigger assembly, loosen stem nut (10). Grip stem
subassembly (6) with small pliers close to threads and gently remove
from trigger guide (16).
10.
Remove stem nut (10), trigger stop spring (11), and #6 burr (12) from
trigger guide (16).
11.
Loosen packing screw (9) by using the hex on the body (5) as a backup
wrenching surface.
12.
While holding the body (5), unscrew packing screw (9) from body.
13.
Slide packing screw (9) up to threads on stem sub-assembly (6).
14.
To prevent damage to packing cup (7), "unscrew" packing screw (9)
from threaded end of sub-assembly (6).
15.
Remove gasket (8) and stem sub-assembly (6).
