7.For warranty and service information on Monarch Hydraulic pumps, contact Monarch Hydraulics at:
Phone:
Web Site: http://www.monarchhyd.com/
The Norton Company does not warranty the Hydraulic Pump. If any warranty or service of the Hydraulic Pump is required contact your nearest Monarch Hydraulics service center @ (616)
8.Monarch Hydraulic Pump Symptom /Cause
Symptom | Cause |
Motor Fails To Start | Motor Start Solenoid Switch |
| Electrical Switch "Open" Circuit Motor |
Load Fails To Hold | Check |
| D.R. Lowering Valve |
| Manual Override |
Load Drops Slow | D.R. Lowering Valve |
| System Filter |
Motor Runs But Load Fails To Raise | D.R. Lowering Valve |
| Manual Override |
| "Ground Fault' |
| Relief Valve |
| Suction Filter |
| Pump Losing Prime (Low Or No Oil In Pump) |
| Cylinder - Piston Type |
| Worn Pump |
Motor Runs Slow And Sluggish | Low Voltage |
| Motor |
| Relief Valve |
Load Fails To Lower | D.R. Lowering Valve |
| System Filter |
| Electrical Switch |
| "Open" Circuit |
9. Monarch Hydraulic Pump Test Equipment a. Pressure Group:
A small 0 5000 PSI pressure gauge, preferably glycerin filled, is a very valuable and relatively inexpensive tool for checking pressure in the various sections of the circuit.
b. DC Test Light:
A test light is simply a light bulb which has one end connected by a wire to an alligator clip and the other end connected to a metal probe. It is used to check the electrical circuit when the battery is connected to the system. The alligator clip is grounded and the light glows when
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