SPX FLOW Bolting Systems PE55TWP-4-BS Operating Instructions And Parts List Manual page 19

Troubleshooting Guide Continued
TROUBLE
Pump delivers excess fluid
pressure.
Pump is not delivering fluid, or
delivers only enough fluid to
advance connected components
partially or erratically or
operation to slow.
Pump builds pressure but
cannot maintain pressure.
© SPX FLOW, Inc.
CAUSE
1� Faulty pressure gauge�
2� Relief valve set incorrectly�
1� Fluid level too low�
2. L oose-fitting coupler to
component�
3� Air in system�
4� Air leak in suction line�
5. D ebris in pump or filter plugged. 5. C lean pump filter. If problem
6� Fluid bypasses through the tool� 6� Remove tool; cap hoses� Check
7. C old fluid or fluid too heavy.
(Hydraulic fluid is of a higher
viscosity than necessary�)
8� External relief valve or low
pressure unloading valve out of
adjustment�
9� Power unit/reservoir capacity
is too small for the size of the
tool(s) used�
10� Vacuum in reservoir�
1� Fluid leakage�
2� Leaking pressure switch seal�
18
SOLUTION
1� Replace gauge�
2� Contact a Power Team Service
Center�
1. A dd fluid, refer to filling the pump
reservoir in Initial Setup section�
2� Verify quick-disconnect couplings
to tools are completely coupled�
Couplers may need to be replaced
because ball check does not stay
open due to wear�
3� Refer to Initial Setup in this
manual to bleed air from system�
4� Check and tighten suction line�
persists, disconnect from power
supply contact authorized Power
Team service center�
pump and valve for leaks�
7. D rain, flush, and refill reservoir
using a lighter weight fluid. Refer
to General Maintenance section�
8� Refer to Adjusting the Pressure
Regulating Valve�
9� Use smaller tool(s) or larger
reservoir�
10. C lean plugged vent in filler plug.
1. L ook for external leaks. If no fluid
leakage is visible, the problem is
internal� If using a double-acting
tool, remove it from the system to
ensure the leak is not in the tool�
Seal leaking pipe fittings with pipe
sealant�
2� Replace pressure switch�
Form No. 1000679
Rev. 7 Nov. 6, 2023