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TROUBLESHOOTING:
Use the Troubleshooting Chart as an aid in locating problems and correcting them. Always check out the
simplest possible cause of malfunction first. Eliminate each possible cause until the defective circuit or part
is located. Substitute good parts for suspected bad parts.
1 .
Tool will not reciprocate when motor is running.
A. Improperly coupled hoses.
B. Bind in tool or nose assembly.
C. Pump to motor coupling damaged.
D. Hydraulic fluid level is low or viscosity not proper.
E. Unloading valve in tool improperly installed or missing.
2.
Fastener pintail fails to break off.
A. PULL pressure set too low.
B. Defective hose couplers.
C. Defective internal relief valve or set too low.
D. Overheated hydraulic fluid.
E. Hydraulic fluid level low or viscosity not proper.
F. Defective pump.
3.
Tool will not return or push nose assembly off swaged fastener when switch is released.
A. RETURN pressure set too low.
4.
When the installation cycle is complete, motor fails to shut off.
A. Pressure switch set too high.
B. Overheated hydraulic fluid.
C. Hydraulic fluid level low or viscosity not proper.
D. Defective pressure switch.
5.
Pump making noise throughout operating cycle.
A. Pump is cavitating, the fluid viscosity is too heavy or the fluid level may be too low.
B. Filter is clogged or dirty.
6.
Tool operates slow throughout entire cycle.
A. Pump is cavitating, the fluid viscosity is too heavy or the fluid level may be too low.
B. Filter is clogged or dirty.
C. Defective pump.
TROUBLESHOOTING CHART:
8
REV. 10/13
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