Section 9
High Pressure Water System
20412997
8-2012/Rev 12
9-36
18. Remove the high pressure adapter and the seal positioning tool.
19. Apply Pure Goop anti-seize compound to the threads of the actuator and carefully thread it
into the valve body, guiding the stem head into the hole in the actuator. Turn the actuator
clockwise until resistance is felt. Reverse the actuator 1/4-turn, and give it a quick spin
clockwise to seat it. Hand-tighten only, 5 ft-lbs (7 Nm).
20. Apply Pure Goop anti-seize compound to all surfaces, except the ID, of a new valve seat.
Install the seat into the valve body, inserting the small OD first.
21. Apply anti-seize compound to the threads on the high pressure adapter. Install the adapter
and torque to 25 ft-lbs (34 Nm).
22. Replace the 1/4-inch drain gland nut and collar and torque to 25 ft-lbs (34 Nm).
23. Apply anti-seize compound to the threads on the 3/8-inch high pressure gland fittings.
Install the collar and the gland fittings and torque to 50 ft-lbs (68 Nm).
24. Install the air supply hose and the electrical connection to the solenoid valve. Turn the air
pressure to the actuator on and test the valve for leaks and proper operation.
2-Port Pneumatic Control Dump Valve (SL-V 100)
For reliable operation the valve seat, seal assembly, brass backup ring and stem shall always be
replaced at the same time. The SST backup ring can be reused.
Before proceeding, disconnect and lockout the main power supply and the electrical enclosure;
and ensure that all high pressure water and hydraulic pressure has been bled from the system.
Severe injury can result if the machine is not properly locked out. Observe
electrical Lock Out/Tag Out procedures before proceeding.
Ensure all pressure is relieved or blocked from the hydraulic and high pressure
circuits before proceeding.
1. Turn the air supply off.
2. Remove the air supply hose, and the electrical connection to the solenoid valve.
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