John Deere rhino pd54 - Manual (Page 44)

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4. MAINTENANCE
CARDBOARD OR WOOD TO SEARCH FOR
POSSIBLE LEAKS. NEVER USE YOUR HANDS
TO DETECT PRESSURE LEAKS.
IF YOU ARE INJURED BY ESCAPING
HYDRAULIC FLUIDS, SEE A DOCTOR AT ONCE.
SERIOUS INFECTION OR REACTIONS CAN
DEVELOP IF PROPER MEDICAL TREATMENT IS
NOT ADMINISTERED IMMEDIATELY.
Before disconnecting any hydraulic lines, be sure
engine is shut off and relieve all pressure. Before
applying pressure to system, be sure all connections are
tight and lines, fittings and hoses are not damaged.
Inspect for leaks daily. Check connections for tightness
every 100 hours.
Hydraulic system produces high pressures – incorrect
hose replacement can cause serious personal injury.
When performing service, refer to hydraulic diagrams
for hose identification and connections.
4.23 FORWARD/REVERSE/NEUTRAL
ADJUSTMENT
The forward/reverse lever should be aligned with
“NEUTRAL” on the console when the roller is moving
neither forward nor backward with the engine running.
If the lever is not aligned, adjust it as described below.
1. Shut off the engine with the forward/reverse lever
left in operating neutral position, the position when
the roller moves neither forward nor reverse.
Apply the parking brake.
2. Open the engine hood of the machine.
3. Disconnect the linkage from the hydrostatic
transmission from the clevis. Do this by removing
the lock nut from the clevis pin and removing the
pin.
4. Now screw clevis in or out to adjust.
5. Secure the clevis to the transmission lever with
the clevis pin, secure with the lock nut and tighten
clevis nut.
Linkage play must be minimal at both connections.
Replace clevis and/or link if required.
4.24 NEUTRAL INTERLOCK
The purpose of the neutral interlock switch is to
prevent engine starting when the forward/reverse lever
is not in the neutral position. To check:
1. Disconnect battery cables from battery.
2. a. Disconnect (2) wires from neutral interlock
switch and connect it to leads from an
ohmmeter.
b. When switch is actuated, ohmmeter should
read zero resistance.
3. Adjustments must be made at transmission.
4. Disconnect ohmmeter and reconnect interlock
wires and battery cables.
4.25 CONTROL CABLES: FORWARD/
REVERSE, THROTTLE, BLADE
Lubricate all cable ends with penetrating oil every 200
hours.
DO NOT ADJUST THE CONTROL CABLE WITH
THE POWER ON OR THE ENGINE RUNNING.
SERIOUS INJURY OR DEATH COULD RESULT.
A GRADUAL OR SUDDEN INCREASE IN THE NO-
LOAD FRICTION (CABLE DISCONNECT AT
BOTH ENDS) OF A CONTROL CABLE IS AN
INDICATION OF A PENDING OR PRESENT
PERFORMANCE PROBLEM. THE CONTROL
CABLE SHOULD BE REPLACED, OTHERWISE
SERIOUS INJURY OR DEATH COULD RESULT.
A GRADUAL OR SUDDEN DECREASE IN THE
USABLE STROKE IS AN INDICATION OF A
PENDING OR PRESENT PERFORMANCE
PROBLEM. THE CONTROL CABLE SHOULD BE
REPLACED, OTHERWISE SERIOUS INJURY OR
DEATH COULD RESULT. CONTROL CABLES
WHICH HAVE MOISTURE INSIDE OF THEM
AND/OR HAVE FROZEN SHOULD BE
REPLACED. DO NOT APPLY HEAT TO THAW
OR DRY CONTROL CABLES.
WARNING