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Operation
12 311826B
Operation
Pressure Relief Procedure
1. Engage trigger lock.
2. Shutoff the pump:
a. For air-powered pumps, close the bleed-type
master air valve.
b. For hydraulic-powered pumps, close the supply
line shutoff valve (U) first, then close the return
line shutoff valve (V).
3. Disengage the trigger lock.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5. Engage the trigger lock.
6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
drain valve(s) open until you are ready to spray
again.
7. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after follow-
ing the steps above, VERY SLOWLY loosen tip
guard retaining nut or hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction.
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
Startup
1. Connect the suction kit (T) to the pump's fluid inlet,
and place the tube into the fluid supply.
2. Prepare the pump’s power source:
a. For air-powered pumps, close the air regulator
(F). Open the pump's bleed-type master air
valve (E).
b. For hydraulic-powered pumps, check the
hydraulic fluid level before each use, and add
fluid as necessary. Close the supply line shutoff
valve (U) and the return line shutoff valve (V).
Start the hydraulic power supply.
3. Hold a metal part of the gun (S) firmly to the side of
a grounded metal pail and hold the trigger open.
4. Start the pump:
a. For air-powered pumps, slowly open the air reg-
ulator until the pump starts.
b. For hydraulic-powered pumps, open the return
line shutoff valve (V) first, then slowly open the
supply line shutoff valve (U).
Trapped air can cause the pump to cycle unexpectedly,
which could result in serious injury from splashing or
moving parts.