SERVICING AND MAINTENANCE
361
Drain And Refill
On 4500/5500 vehicles, remove the lower bolt to
drain the axle fluid.
4500/5500 Rear Axle Plugs
For the proper maintenance intervals
Lubricant Selection
NOTE:
The presence of water in the gear lubricant will
result in corrosion and possible failure of differ
-
ential components. Operation of the vehicle in
water, as may be encountered in some off-highway
types of service, will require draining and refilling
the axle to avoid damage.
Limited-Slip Differentials DO REQUIRE limited slip
oil additive (friction modifiers).
NOTE:
Slight noise and mild shuddering may be evident
while turning a vehicle with limited slip differential
on concrete or dry pavement. These conditions
should be considered normal operation of the
limited slip differential.
T
RANSFER
C
ASE
Fluid Level Check
This fluid level can be checked by removing the
filler plug. The fluid level should be to the bottom
edge of the filler plug hole with the vehicle in a level
position.
Drain And Refill
For the proper maintenance intervals
Selection Of Lubricant
Use only the manufacturer's recommended fluid
N
OISE
C
ONTROL
S
YSTEM
R
EQUIRED
M
AINTENANCE
& W
ARRANTY
All vehicles built over 10,000 lb (4,535 kg) Gross
Vehicle Weight Rating and manufactured for sale
and use in the United States are required to
comply with the Federal Government's Exterior
Noise Regulations. These vehicles can be
identified by the Noise Emission Control Label
located in the operator's compartment.
Required Maintenance For Noise Control
Systems
The following maintenance services must be
performed every six months or 7,500 miles
(12,000 km) whichever comes first, to ensure
proper operation of the noise control systems. In
addition, inspection and service should be
performed anytime a malfunction is observed or
suspected. Proper maintenance of the entire
vehicle will help the effectiveness of the noise
control systems.
1 — 4500/5500 Rear Axle Fluid Fill Plug
2 — 4500/5500 Rear Axle Fluid Drain Plug
8
22_DPF_OM_EN_USC_t.book Page 361
