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» Frequent Asked Questions

Troubleshooting for Pneumatic pumps

Problems

Causes

Solutions

Hard to use pressure lever

The isolating valve is not open

Open the isolating valve

Hard to pressurize

A. Release valve is not closed.

Close the release valve.

B. The O-Ring is broken or loose

Replace the O-Ring (PR#:ZL200620119357.2)

C. P/V selector is in wrong position

pressure: pull it out; vacuum: push it in

Hard to turn the fittings

A. Fittings are over tightened!

Do not over-torque the fittings.

B. The threads have no lubrication

Lubricate the threads

Hard to use vernier

A. Release valve is not closed.

Close the release valve.

 

B. The gauges is not tightened.

Tighten the connection of the reference gauge or the connection of the gauge under test

 

C. The O-Ring is aged or frayed.

Replace the O-Ring

 

D. The thread surface is not smooth

Put in a Teflon seal and turn it tightly.

 Troubleshooting for Hydraulic pumps

Problems

Causes

Solutions

Difficulties in coarse adjustment.

A. Isolating valve is not closed.

Close the isolating valve.

B. The O-Ring is broken or loosen

Replace O-Ring (PR#:ZL200620119357.2)

C. The hydraulic fluid level is low

Add more hydraulic fluid

D. The pump is not in the horizontal position

Place the pump in a horizontal position.

Difficulties in fine adjustment

A. The isolating valve is not closed

Close the isolating valve

B. The gauges are not connected tightly.

End connections must be torqued firmly.

C. The O-Ring is aged or frayed.

Replace O-Ring

D. The thread surface is not smooth

Put in a Teflon seals and turn it tightly.

E. The connector type doesn’t match

Use the correct adapter

Having difficulty in disconnecting the gauges

A. Fittings are over tightened!

Do not over-torque the fittings.

B. The pressure may not be adjustable with the coarse adjust valve under high pressure.

Adjust the pressure using fine adjust valve.

C. The threads have no lubrication

Lubricate the thread