Norton Abrasives C6120, C3120 Phone, Monarch Hydraulic Pump Symptom /Cause, Motor Fails To Start

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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