Norton Abrasives C6136 User Manual

Page 43

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7. For warranty and service information on Monarch Hydraulic pumps, contact

Monarch Hydraulics at:
Phone: 616-458-1306
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) 458-1306, or from the Internet:

http://www.monarchhyd.com/


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 Valve-Main (Poppet Type)
D.R. Lowering Valve (two-way, Two Position)
Manual Override

Load Drops Slow

D.R. Lowering Valve (two-way, Two Position)
System Filter

Motor Runs But Load Fails To Raise

D.R. Lowering Valve (two-way, Two Position)
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 (two-way, Two Position)
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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