Tire Pressure - Cub Cadet Fire & Rescue 642 Operator's Manual

• Remove the appropriate electrical fuse and replace
with proper amperage fuse. (See schematic under
hood)
• Reattach socket and lower hood. Secure hood to
dash.

Tire Pressure

WARNING: Explosive separation of tire and
rim parts is possible when they are serviced
incorrectly. Do not stand in front or over tire
assembly when inflating.
The recommended operating tire pressure is approxi-
mately 5-7 psi for all tires. Overinflating above
recommended tire pressure can reduce the life of the
tire. Check tire pressure before driving the vehicle.
NOTE: For high loads 8-10 psi is recommended for the
center and rear tires. The recommended tire pressure
while using the snow plow option is 8-12 psi in the front
tires.
Wheel Replacement
WARNING: Using an unstable lifting device
and vehicle support may result in bodily injury.
Use a safe lifting device and supports to work
on raised vehicle.
Rear Wheels
• Stop the vehicle on a level surface and apply
parking brake.
• Turn the ignition key to the STOP position and
remove the key.
• Loosen but do not remove the five wheel bolts from
the axle hub. See Figure 16.
Figure 16
• Raise rear of vehicle with a safe lifting device and
place support stands under vehicle.
• Remove the five wheel bolts and rear wheel. Place
new wheel on the axle hub and secure with bolts.
• Tighten wheel bolts diagonally until snug.
• Remove support stands and lower vehicle.
• Finish tightening the bolts to 55-60 lb-ft using a
torque wrench in a star pattern.
Front Wheels
• Stop the vehicle on a level surface and apply
parking brake.
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IMPORTANT:
bearing damage.
Drive Chain Tension
NOTE: Drive chain is set taught at the factory, so it will
not reach normal stretch limits until vehicle has
experienced reasonable hours of operation (50 hrs).
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Wheel Bolts
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14
Turn the ignition key to the STOP position and
remove the key.
Loosen 16 x 40 cap screw.
Raise front of vehicle with a safe lifting device and
place support stands under vehicle.
Remove cap screw and front wheel. Place new
wheel on front axle hub and secure with cap screw
and loctite 242.
Remove support stands and lower vehicle.
Finish tightening the 16 x 40 screw to 80-85 lb-ft
using a torque wrench.
Overtightening front wheel can result in
WARNING: Do not rely on a lifting device
alone to support machine while servicing.
Always use jack stands or wooden blocks to
support vehicle while work is being performed
with machine raised.
Stop vehicle on level surface, but do not apply
parking brake.
Put transmission in neutral and differential in the
disengaged position.
Turn the ignition key to the STOP position and
remove the key.
Use a safe lifting device to raise all four rear wheels
off ground and place jack stands or wooden blocks
under vehicle.
Raise and secure cargo box, if manual lift.
Rotate wheels toward or away from each other and
check to see if there is any slack in the chain.
See Figure 17.
If the chain adjusters are not keeping the chain
tight, a1/2 link will need to be removed.
If chain is still loose after the 1/2 link is already
removed, the chain should be replaced using a 98
to 99 link chain. DO NOT USE a 97 link chain or
less.
If chain is still loose after installing a new 98 pitch
chain, see your Cub Cadet dealer.
Figure 17
Chain Adjusters
Sag In Chain