freightliner MC - ZF IFS Lubrication

12. Check that all air springs are inflated. If the air
springs do not inflate, see Group 32 of the Rec-
reational Vehicle Chassis Workshop Manual for
possible causes and corrections, or take the ve-
hicle to an authorized Freightliner dealer.
32–04 ZF IFS Lubrication
IMPORTANT: Do not raise the vehicle by plac-
ing a jack under the control arm(s). The weight
of the vehicle could damage the control arms
and cause alignment issues. See
Fig. 3 for cor-
rect jack placement.
1. Chock the rear tires and apply the parking brake.
Raise the front of the vehicle with a jack so the
tires just clear the ground and the suspension is
fully extended. Place safety stands under the
vehicle frame.
WARNING
Never work around or under a vehicle that is sup-
ported only by a jack. Always support the vehicle
with safety stands. Jacks can slip, causing the
vehicle to fall, which could result in serious injury
or death.
IMPORTANT: ZF recommends checking the
wheel bearing lash and adjusting as needed
every 50,000 miles (80 450 km).
2. Remove the wheel hub. See Group 33 of the
Recreational Vehicle Chassis Workshop Manual
for wheel bearing service procedures, or take the
vehicle to an authorized Freightliner dealer.
3. Lubricate the steering knuckle/control arm at indi-
cated maintenance intervals. Use only an NLGI
Grade 2 lithium-based grease, multipurpose
02/21/2005 f321032
Fig. 2, Holland Neway ADL 120/123 Suspension
Suspension32
Recreational Vehicle Chassis Maintenance Manual, June 201532/4