Danfoss TMM 070 User Manual

Overview
This section provides general steps to follow if you observe undesirable system conditions. Follow the
steps listed until you solve the problem. Some of the items are system specific. We reference the section
in this manual if more information is available. Always observe the safety precautions listed in the
Introduction section and precautions related to your specific equipment.
Safety Precautions
W
Warning
Escaping hydraulic fluid under pressure can have sufficient force to penetrate your skin causing serious
injury and/or infection. Relieve pressure in the system before removing hoses, fittings, gauges, or
components.
W
Warning
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.
C
Caution
Contamination can damage internal components and void the manufacturer’s warranty. Take
precautions to ensure system cleanliness when removing and reinstalling system lines
W
Warning
Hydraulic fluid contains hazardous material. Avoid contact with hydraulic fluid. Always dispose of used
hydraulic fluid according to state, and federal enviroN•mental regulations.
System operating hot
System operating hot
Item Description Action
Oil level in reservoir. Insufficient hydraulic fluid will not meet
cooling demands of system.
Fill reservoir to proper level.
Heat exchanger. Heat exchanger is not sufficiently cooling the
system.
Check air flow and input air temperature for
heat exchanger. Clean, repair or replace heat
exchanger.
System relief pressure
settings
If the system relief valves are worn,
contaminated, or valve settings are too low,
the relief valves will be overworked.
Verify settings of high pressure relief valves
and replace valves as necessary.
System pressure Frequent or long term operation over system
relief setting will create heat in system.
Measure system pressure. If pressure is too
high, reduce loads.
For internal leakage
in motor
Leakage will reduce low side system pressure
and overwork the system.
Monitor motor case flow without loop
flushing in the circuit. If flow is excessive,
replace motor.
Service Manual TMM Transit Mixer Axial Piston Motor, Size 070/084/089
Troubleshooting
L1211037 • Rev AC • Apr 2014 19

Danfoss TMM 070 Specifications

General

Brand	Danfoss
Model	TMM 070
Category	Engine
Language	English