NOTE: 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 other than the MAB or MAE Torqmotor Ô 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
EXPLOSION OR FIRE COULD CAUSE
INJURY OR DEATH.
WARNING: WEAR EYE PROTECTION
AND BE SURE TO COMPLY WITH
OSHA OR OTHER MAXIMUM AIR
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 that were not properly
repaired, or that should have been replaced; and
improper replacement parts used in previous
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 and
fittings. Replace any hoses or lines that don't meet
system flow and pressure ratings.
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 MAB and MAE 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. Consult the manuals published by
maximum allowable temperatures and hydraulic tests
that may be necessary to run on the performance of the
hydraulic components. The MAB and MAE are not
recommended for hydraulic systems with maximum
temperatures above 200 °F (93.3°C).