John Deere pd54 Lawn Mower User Manual


 
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4. MAINTENANCE
4.26 ECCENTRICS
Test vibration with front drum on soft ground. Run
engine at full rpm to obtain vib spec 2100 + 100 rpm 
check per below.
To check vibration with a vibrotach, place the
vibrotach on the vibrating member surface, record
reading when the wire reaches maximum movement.
(Vibrotach P/N 37891).
When checking vibration with strobe light, place
horizontal line on vibrating member surface. Check
with strobe light and record reading when the line
reaches minimum movement.
4.26.1 Eccentric Housing Oil
ROLLER MUST BE PARKED ON LEVEL
GROUND WITH PARKING BRAKE APPLIED AND
ENGINE OFF.
REMOVE THE KEY AND / OR DISCONNECT
BATTERY TO AVOID ACCIDENTAL IGNITION
OF ENGINE. SEVERE PERSONAL INJURY MAY
OCCUR.
NEVER WORK ON THE ROLLER WITH ENGINE
RUNNING. SEVERE PERSONAL INJURY MAY
OCCUR.
Eccentric housing oil should be checked monthly and
changed every 800 hours or yearly. Refer to
Maintenance Chart.
To check, locate oil plug inside the right hand drum
end and position drum so that oil plug is visible at 7:00.
Loosen oil plug slowly until oil starts to drip out past
the oil plug. Oil must be present at the 7:00 position.
Add oil if required and reinstall oil plug, use thread
sealant.
Eccentric housing oil:
SAE 20W/50 API SJ or API SH
SD/PD 43 1 qt. (.95 L.)
SP/PD 54 1.5 qt. (1.4 L.)
4.27 CHARGE SYSTEM
If gauge fails to function, check charge system. With
the engine running at full speed, voltage should be 13-
14 volts across the battery (check volt meter). If unit is
charging, replace gauge. If not, see authorized engine
dealer to check alternator.
4.28 PANEL FUSE 20 AMP
This fuse provides protection for the electrical system.
If the engine fails to turnover when starting, check the
fuse.
NEVER USE FUSE WITH A DIFFERENT RATING
FROM THAT SPECIFIED. SERIOUS DAMAGE
TO THE ELECTRICAL SYSTEM OR A FIRE MAY
RESULT.
TURN THE ENGINE SWITCH OFF AND REMOVE
THE KEY BEFORE CHECKING OR REPLACING
FUSES TO PREVENT ACCIDENTAL SHORT-
CIRCUITING.
When frequent fuse failure occurs, it usually indicates
a short circuit or an overload in the electrical system.
See your authorized engine dealer for repair.
4.29 ENGINE INSTALLATION GUIDELINES
When installing new or reworking used diesel engines,
this list of guidelines should be strictly adhered to.
Following these guidelines should prevent damage to
the electrical system of diesel engines.
A. Always disconnect the positive cable from the
battery before performing any work on the
machine that involves welding or working on
the electrical system.
B. Avoid jump starting a diesel engine. Either change
the battery or remove the positive cable and charge
the battery.
C. Do not alter or change the wiring harness.
WARNING
WARNING