SPX FLOW Infinity Series Operating Instructions Manual page 17

Troubleshooting Guide Continued
Problem
Pump will not build full
pressure.
Wrench will not retract.
© SPX FLOW, Inc.
Cause
1. Faulty pressure gauge.
2. External leakage.
3. External pressure regulator.
4. Relief valve setting. Contaminate in
RV check valve.
5. Internal leakage in double-acting
wrench.
6. Leaks in the flow control valve.
7. Pump has internal leakage. Check
high pressure pump inlet or outlet
ball checks. The inlet check spring
on the cartridge may be dislocated.
8. Snap ring dislocated on pump
shaft.
9. Sheared key(s).
10. Inadequate air pressure (air motor
only).
11. O-ring on pilot body is
compromised. (4-6 KSI max)
12. Control valve seal or spool leaks.
1. Check the system pressure; if
the pressure is zero, the control
valve is releasing pressure and
the problem may be in the wrench,
mechanical linkage connected to
wrench(s), or quick-disconnect
couplings.
2. Defective valve.
3. Inadequate air pressure (air motor
model only).
16
Solution
1. Calibrate or replace gauge.
2. Seal faulty pipe fitting with pipe
sealant. O-rings in couplers are
leaking.
3. Replace adjustable pressure
regulator valve.
4. Adjust the relief valve setting to 10.4
KSI to 10.8 KSI.- requires cleaning.
5. Remove the wrench from the pump.
If the pump builds full pressure, the
wrench is defective.
6. Clean and reseat or replace parts.
7. Same procedure as above, but
look for leaks around the entire
inner mechanism. If there are no
visible leaks, verify inlet check ball
seats correctly (may require service
center).
8. Remove motor to gain access to
pump shaft snap ring. Align drive pin,
compress spring and install snap ring.
9. Replace key.
10. Increase air pressure.
11. Replace both O-rings on pilot body.
12. Fluid leak at base is observed
coming from small square opening.
Service is required at a Power Team
center.
1. Check the wrench for broken return
springs, and check couplers to ensure
that they are completely coupled.
Occasionally couplers have to be
replaced because one check does not
stay open in the coupled position.
2. Check valve operation and inspect
parts. Replace if necessary.
3. Increase air pressure.
Form No. 1000577
Rev. 2 Jun. 02, 2022