Before troubleshooting any system problem, check service literature published by the equipment
and/or component manufacturers. Follow their instructions, if given, for checking any
component but the MAF TorqmotorTM unit.
Make your troubleshooting easier by preparing as
work in a clean, well-lighted place;
have proper tools and materials nearby;
have an adequate supply of clean petroleum-based
SINCE THEY ARE FLAMMABLE, BE
USING ANY SOLVENT. EVEN A
SMALL EXPLOSION OR FIRE COULD
CAUSE INJURY OR DEATH.
WEAR EYE PROTECTION AND BE
SURE TO COMPLY WITH OSHA OR
OTHER MAXIMUM AIR PRESSURE
Hydraulic systems are often trouble free. The problem
an operator complains of could be caused by something
other than the hydraulic components. Thus, once you
have determined that a problem exists, start with the
easy-to-check items, such as:
parts damaged from impact not properly repaired, or
that should have been replaced; and
improperly spec'd replacement parts.
mechanical linkage problems such as binding,
broken, or loose parts or slipping belts.
If you think the problem is caused by a hydraulic
component, start by checking the easy-to-reach items.
Check all hoses and lines for cracks, hardening, or other
signs of wear. Reroute any useable hoses that are
kinked, severely bent, or that rest against hot engine
parts. Look for leaks, especially at couplings. Replace
any hoses or lines that don't meet system flow and
Next, go to the reservoir and filter or filters. Check fluid
level and look for air bubbles. Check the filter(s). A
recommended for the MAF system.
Visually check other components to see if they are
loosely mounted, show signs of leaks, or other damage
Excessive heat in a hydraulic system can create
problems that can easily be overlooked. Every system
temperature. After the temperature is attained and
passed, the following can occur:
oil seal leaks
loss of efficiency such as speed and torque
pump loss of efficiency
hoses become hard and brittle
A normal temperature range means an
efficient hydraulic system.
It may be necessary that you run
hydraulic tests on the performance of
the hydraulic components. To do so,
consult the manuals published by the
equipment or component