L¥l€'e, General, Ai caution – Troy-Bilt 14066 User Manual
Page 26: Note, Test procedure, Hydraulic cylinder leakage test
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Hydraulic Cylinder Leakage Test
Fig. 12
General
Ai
CAUTION!
Safety glasses should be worn when performing
Cylinder Leakage Tests.
When performing Cylinder Leakage Tests the
tractor engine should be operating at mid R.P.M.
to ensure the hydraulic system reache's the
Relief Valve Setting.
During tests, the System Relief Valve governing
maximum pressure to the Loader Cylinders will
be “Open”, (system is at Relief Valve Setting).
Note:
Do not maintain Hydraulic System at Relief Valve
Setting pressure for more than 20 second inter
vals to prevent overheating hydraulic system.
The Test Procedures outlined enable the
cylinders to be checkec for Rod Seal Leakage
(External Leakage) and Piston Seal Leakage in
both directions (Internal Leakage).
Test Procedure
Lower Loader to the ground, shut tractor off and
disconnect cylinders as follows:
Lift Cylinder Test - disconnect from Subframe
(Rod End).
Bucket Cylinder Test - disconnect from Bucket
(Rod End).
Support the Cylinders to prevent excessive
strain on hydraulic hoses in a position that will
allow
the
Cylinders
to
be
completely
“Extended”.
90-3