John Deere 318 - Manual (Page 429)

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HYDRAULIC OIL
WARM-UP
PROCEDURE
M43008 -UN-18JAN90
Remove belly
screen/pan.
Install JDG282
Temperature Gauge (A)
on transmission oil
filter.
Apply park brake.
Start engine and run at
full throttle.
M43629 -UN-12JAN90
Move and hold control
lever in implement
“raise” position.
Periodically cycle all
hydraulic functions to
distribute heated oil.
NOTE: 316 Shown
Heat oil to temperature
specified in test.
NOTE: The hydrostatic
transmission should not
exceed 93˚C (200˚F) as
a continuous operating
temperature.
Æ
ROCKSHAFT
CYLINDER LEAKAGE
TEST
Heat hydraulic oil to 43˚C (110˚F).
With implement linkage in the raised position
(cylinder extended), shut off engine.
N
CAUTION: TO AVOID INJURY FROM
ESCAPING HYDRAULIC OIL UNDER
PRESSURE, RELIEVE THE PRESSURE IN THE
SYSTEM BY STOPPING THE ENGINE AND
OPERATING ALL HYDRAULIC CONTROL
VALVES.
M43631 -UN-12JAN90
Disconnect hose (A) from rod-end of cylinder.
There might be some initial dripping of hydraulic
oil from the cylinder and hose. This is not
leakage.
Put JT03393 steel Plug in disconnected hose.
Start engine and run at full throttle.
Hold control valve lever in the “lift” position.
Observe cylinder, hydraulic oil should not
continually leak out of the rod-end fitting.
IF HYDRAULIC OIL
CONTINUALLY LEAKS
OUT OF THE
ROD-END FITTING,
REPLACE CYLINDER.
MX,159026015,16-19-24APR95
MX,159025020,23-19-20APR95
MX,159027020,14-19-24APR95
Diagnosis, Tests and Adjustments/Rockshaft Cylinder Leakage Test
TM1590 (17MAY95)
270-20-5
316, 318 & 420 Lawn and Garden Tractors
020895
270
20
5