5
5.
Lift shroud from reservoir. DO NOT remove the foam
insulation. Use care to avoid damaging wires or
pulling wire connections off terminals.
6.
Remove 8 screws holding console to reservoir.
7.
Lift console from reservoir using care to avoid
damaging pick-up screens.
8.
Remove gasket and discard.
9.
Thoroughly clean the reservoir with solvent. Never
use water.
10. Use a soft bristle brush to clean intake screens. Rinse
with solvent.
11. Install a new gasket.
12. Position the coverplate on the reservoir. Make certain
that the gasket is visible all the way around the
coverplate.
13. Secure console to reservoir.
14. Place shroud over motor with shroud handle facing
valve side of console.
15. Install the six mounting screws.
16. Reconnect wire(s) to solenoid valve.
17. Before reinstalling the heat exchanger, use
compressed air to blow dirt out of the heat exchanger.
18. Fill reservoir to inch below the vent/fill opening with
new hydraulic oil. Reservoir capacity is 0.75 gallon
(2,8 liters).
6.4 Motor Brushes
Check the electric motor brushes at least once every two
years. For pumps in heavy usage applications, check the
brushes at least once every six months.
DANGER:
To avoid possible electrocution, pump
must be completely disconnected from electrical
power before brush servicing is attempted.
Problem
Possible Cause
Solution
Motor current draw is
excessive.
Noisy console operation.
Console fails to maintain
pressure.
Low oil output.
Console builds pressure
slowly or erratically.
Console is overheating.
Defective motor.
By-pass valve malfunction.
Damaged or worn piston blocks.
Piston block piston is sticking.
Springs or balls are damaged.
Oil leaking from one or more
components within the reservoir.
Console component parts leaking.
By-pass valve malfunctioning.
Oil intake screens on piston
blocks are clogged.
Low oil level.
Internal leakage in valve.
Nylon tubing to heat exchanger is
disconnected.
Thermostat malfunction.
Remove the motor. Test and replace if necessary.
Inspect and test by-pass valve if required. Valve is preset. If
damaged or incorrectly set, replace.
Test and inspect the piston blocks. Replace
if necessary.
Remove the piston blocks. Inspect and replace as required.
Piston blocks are non-serviceable.
Remove the console from the reservoir and back pressure
test it. Contact Sweeney for the test procedure.
Perform back pressure test to isolate leaks.
Test and inspect by-pass valve. Replace and
set if necessary.
Inspect intake screens. Flush all components of
contamination. Replace damaged components.
Fill reservoir to proper level.
Disassemble valve and replace worn or damaged parts.
Reconnect nylon tubing under pumping unit. Tubing will
click into place when it is properly connected.
Replace thermostat.
If your console requires repair work, contact your Sweeney Authorized Service Station.
TROUBLESHOOTING CHART