Manual Dual Mister 9.808-246.0 - E
15
PRESSURE W
ASHER
SER
VICE MANU
AL
VRT3 UNLOADER EXPLODED VIEW AND PART S LIST
9
8
23
26
3
16
1
10
24
11
6
4
13
14
20
25
12
22
19
15
2
15
21
17
7
9
5
6
8.750-299.0, 8 GPM, 4500 PSI
ITEM PART NO.
DESCRIPTION
QTY
25 8.750-712.0 Outlet Fitting
1
8.750-709.0 Repair Kit, VRT3, 2320/3630
PSI
8.750-710.0 Repair Kit, VRT3, 4500 PSI
(Kit Items: 1, 4, 8-12, 16, 21-22)
1.
Remove lock nut (Item 19).
2.
Loosen the two (2) nuts (Item 15), move them upward on stem (Item 8) until you see 4 or more threads below the nut.
3.
Start machine. Open the trigger of the spray gun. Increase pressure by turning adjustment knob (Item 18) clockwise until
pressure is at the desired operating pressure.
4.
Tighten the lower nut (Item 15) tightly against the upper nut (Item 15).
Screw down lock nut (Item 19) onto the stem (Item 8) until the threads cut into the nylon insert of the lock nut (Item 19).
**Release the trigger of the spray gun and watch the pressure gauge for the pressure increase (“spike”). This “spike” SHOULD NOT
exceed 500 psi above the operating pressure. If “spike” pressure exceeds the 500 psi limit, re-adjust (lower) the nuts (Items 15) on
the stem (Item 8). Then repeat step #4.
Unloader Adjustment Procedures
