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Service Manual
K and L Frame Variable Motors, Cartridge Mount
Introduction
Overview
Safety precautions
Symbols used in Danfoss literature
4 |
©
Danfoss | July 2017
This manual includes information for the installation, maintenance, and minor repair of the K and L Frame
Cartridge Mount Variable Motors. The manual includes a description of the units and their individual
components, troubleshooting information, and minor repair procedures. Performing installation,
maintenance, and minor repair of K and L Frame Variable Motors according to the procedures in this
manual will not affect your warranty.
Performing minor repairs requires the unit to be removed from the vehicle/machine. Thoroughly clean
the unit before beginning maintenance, or repair activities. Since dirt and contamination are the greatest
enemies of any type of hydraulic equipment, follow cleanliness requirements strictly. This is especially
important when changing the system filter and when removing hoses or plumbing.
A worldwide network of Danfoss Authorized Service Centers (ASCs) is available for major repairs. Major
repairs require the removal of the unit's endcap, which voids the warranty unless done by an ASC.
Danfoss ASCs are trained by the factory and certified on a regular basis. You can locate your nearest ASC
using the distributor locator at www.powersolutions.danfoss.com.
Always consider safety precautions before beginning a service procedure. Protect yourself and others
from injury. Take the following general precautions whenever servicing a hydraulic system.
W
Warning
Unintended machine movement
Unintended movement of the machine or mechanism may cause injury to the technician or bystanders.
To protect against unintended movement, secure the machine or disable / disconnect the mechanism
while servicing.
W
Warning
Flammable cleaning solvents
Some cleaning solvents are flammable. To avoid possible fire, do not use cleaning solvents in an area
where a source of ignition may be present.
W
Warning
Fluid under pressure
Escaping hydraulic fluid under pressure can have sufficient force to penetrate your skin causing serious
injury and/or infection. This fluid may also be hot enough to cause burns. Use caution when dealing with
hydraulic fluid under pressure. Relieve pressure in the system before removing hoses, fittings, gauges, or
components. Never use your hand or any other body part to check for leaks in a pressurized line. Seek
medical attention immediately if you are cut by hydraulic fluid.
W
Warning
Personal safety
Protect yourself from injury. Use proper safety equipment, including safety glasses, at all times.
WARNING may result in injury
CAUTION may result in damage to product or property
Reusable part
520L0631 | AX00000042en-US0402
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