60
G60, G80, G100, G150, G200-SIIIA OM Manual
MAINTENANCE / 2000 HOURS / 2 YEARS (CONT’D)
REPLACE FAN/ALTERNATOR POLY-V BELT
Figure 64: Fan/Alternator Belt Installation on 4045
Engine
Figure 65: Fan/Alternator Belt Installation on 6068
Engine
NOTE: With the belt removed, inspect pulleys and
bearings. Rotate and feel for hard turning or
any unusual sounds. If pulleys or bearings
need replacement, see your John Deere
Dealer or Distributor.
Refer to “Check Belt” to determine if belt needs to be
replaced.
1.
Inspect belts for cracks, fraying, or stretched out
areas. Replace if necessary.
2.
On engines with automatic belt tensioner, release
tension on belt using a breaker bar and socket on
tension arm.
On engines with manual tensioner, loosen cap screws
holding the alternator.
3.
Remove poly-V belt from pulleys and discard belt.
4.
Install new belt, making sure belt is correctly seated in
all pulley grooves. Refer to belt routing shown for your
application.
5.
Apply tension to belt (See Check Belt Section).
6.
Start engine and check belt alignment.
ALT
Alternator
CP
Crank Pulley
FD
Fan Drive
I
Idler Pulley
T
Tensioner
WP
Water Pump
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