freightliner Argosy COE 2011, Maintenance Manual

Page: 180 / 193

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
Table 1 . 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
Fig. 1 .
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
Fig. 1 .
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
Fig. 1 .
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
Table
1 . 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
Table 1 . Use an appropriate applicator
that will not leave material behind.
Door
72
Century Class Trucks Maintenance Manual, March 2010
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