Operation

Operation

Pressure Relief Procedure

Trigger Lock

Trapped air can cause the pump to cycle unexpectedly, which could result in serious injury from splashing or moving parts.

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.

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

agrounded 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).

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Hitachi 1800 important safety instructions Operation, Pressure Relief Procedure, Startup

1800 specifications

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