freightliner Argosy COE Maintenance Manual page 130

Door
72–01 Door Seal, Door Latch,
Door Hinge, and Door
Check Lubrication
Door Seals
Lightly coat the door seals with a lubricant that's safe
for rubber.
Door Latches
Approved NLGI grade 2 greases or products for lu-
bricating door latches are:
• Mobilgrease Moly 52
• Chemtool Alpha 2000
• Unirex Moly H
• Conoco Moly Poly
• Conoco Tachna 2000
Apply liberal amounts of an approved NLGI grade 2
grease to each moving joint of all door latch assem-
blies. Use an appropriate applicator that will not
leave material behind. Chemtool Alpha 2000 is the
preferred product for this application because it has
superior properties and it is white, unlike the moly-
impregnated greases.
In general, light penetrating oils, such as WD–40,
should not be used because they wash out beneficial
factory-installed grease, and they evaporate.
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
Century Class Trucks Maintenance Manual, October 2005
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
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 with approved NLGI
grade 2 greases or products, such as:
• Mobilgrease Moly 52
• Chemtool Alpha 2000
• Unirex Moly H
• Conoco Moly Poly
• Conoco Tachna 2000
Lubricate external hinges every six months. Using an
appropriate applicator, force a moly-impregnated
NLGI grade 2 grease into the hinge components.
Wipe off any excess grease.
In general, light penetrating oils, such as WD–40,
should not be used because they wash out beneficial
factory-installed grease, and they evaporate.
Door Checks
Lubricate door checks at installation and every six
months thereafter, with moly-impregnated NLGI
grade 2 grease.
72
Fig. 1.
Fig. 1.
72/1