Freightliner Century Class. Manual — part 35
60–01 Cab Suspension Air Bag
Inspection
Inspect the cab suspension air bags at the rear of
the cab. Check for wear, leakage, and damage. Re-
place if necessary.
Inspect the cab suspension shock absorber for dam-
age or leaking fluid. Replace if necessary.
60–02 Cab Tilt Pump Reservoir
Fluid Level and System
Check
Before checking the hydraulic fluid level in the tilt
pump reservoir on Argosy COEs, the cab must be in
the operating position, with the cab latches locked
and the valve lever in the "down" position. Let it re-
main in this position for at least five minutes before
checking the reservoir. The reservoir is full when the
fluid level reaches the threaded area of the fill plug
location.
If the hydraulic fluid level is low, check all fittings and
lines for leaks. If any fittings are loose, tighten them
finger-tight, then tighten with a wrench until there is
firm resistance; tighten one-sixth turn more. Replace
any damaged or worn fittings or lines before adding
fluid. Then bleed any air from the system; see Group
60 of the Century Class Trucks Workshop Manual for
instructions. Add MIL–5606 fluid or an equivalent oil
to bring the level up to the bottom of the fill tube
elbow.
A "spongy" feel in the operation of the pump indi-
cates that air is present in the hydraulic cab-tilt sys-
tem. Bleed the air from the system; see Group 60 of
the Century Class Trucks Workshop Manual for
instructions.
Check for wear of the mounting pin on both tilt cylin-
ders when the cab is in the raised position. Check
that the pins are securely fastened by inspecting the
two retaining Torx® screws at the top of each assem-
bly. Check the tilt pump mounting bolts for tightness;
see
of this manual for torque values for
lubricated or plated fasteners.
60–03 Cab Access Stairs
Inspection, Argosy COE
On Argosy COEs, inspect the cab access stairs for
wear, damage, or excessive dirt build-up, and verify
that the step is operating properly. Inspect the bump
stops, and replace if necessary. See
Check the step alignment using the door frame as a
reference. Verify that the steps are parallel with the
door frame, and that a constant gap is maintained.
Also check the side-to-side level of the step. Adjust if
necessary. Refer to Section 60.20 of the Century
Class Trucks Workshop Manual for instructions.
60–04 Mirror Folding Check
For vehicles with folding main mirrors, make sure
that the mirrors fold freely on the pivot points. Pivot
each mirror fully forward and backward two times to
break loose any debris that may affect the fold-away
feature of the mirror.
Cab
60
60/1
01/13/2003
f602109
1
2
3
4
3
2
1.
Forward Bump Stop
2.
Flatwasher
3.
Bolt
4.
Rear Bump Stop
Fig. 1, Cab Access Stairs Assembly
Cab
60
60/2
MOP Number
Door Seal, Door Latch, Door Hinge, and Door Check Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72–01
Door
72
Index, Alphabetical
72–01 Door Seal, Door Latch,
Door Hinge, and Door
Check Lubrication
NOTE: Light penetrating oils, such as WD–40,
should not be used because they wash out ben-
eficial factory-installed grease, and they evapo-
rate.
Door Seals
Lightly coat the door seals with a lubricant that’s safe
for rubber.
Door Latches
Wipe old grease and dirt from all door latch assem-
blies, then apply liberal amounts of an approved
grease to each moving joint; see
. Use an
appropriate applicator that will not leave material
behind.
Approved Grease
Application
Lubricant
NLGI
Grade
Door Latches
ConocoPhillips Triton® 460
1.5
Door Checks
ConocoPhillips Megaplex® XD3
2
Table 1, Approved Grease
Door Hinges
The door hinges on vehicles built before and after
8/1/2005 have different lubrication requirements. The
hinges on vehicles built before 8/1/2005 should be
lubricated, while those on vehicles built on or after
8/1/2005 should not be lubricated.
CAUTION
Do not lubricate the door hinges on vehicles built
on or after 8/1/2005. Lubrication of these hinges
could adversely affect the performance of the
bushings.
To determine if the door hinges need to be lubri-
cated, first identify the hinge by checking the top loop
of the hinge bracket. See
Door Hinges on Vehicles Built on
or After 8/1/2005
On vehicles built on or after 8/1/2005, the door
hinge center pin is recessed in the top loop of the
hinge bracket. There is a dimple in the top and bot-
tom loop of the hinge bracket. See Ref. A of
Do not lubricate this type of hinge. Lubrication could
adversely affect the performance of the bushings. In
addition, some lubricants may not be compatible with
the hinge bushings.
Door Hinges on Vehicles Built
Before 8/1/2005
On vehicles built before 8/1/2005, the door hinge
center pin is flush with the top of the top loop of the
hinge bracket. There is no dimple in the top or bot-
tom loop of the hinge bracket. See Ref. B of
Lubricate this type of hinge every six months. Wipe
old grease and dirt from the hinge, then force an ap-
proved grease into the hinge components; see
. Use an appropriate applicator that will not leave
material behind. Wipe off any excess grease.
Door Checks
Wipe old grease and dirt from door checks. Lubricate
each moving joint of the door checks at installation
and every six months thereafter, with an approved
grease; see
. Use an appropriate applicator
that will not leave material behind.
Door
72
72/1
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