freightliner Custom Classic MT45 2022, Maintenance Manual

Page: 59 / 138

31–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the en-
gine or motor, set the parking brake, and chock
the tires. Before working under the vehicle, always
place jack stands under the frame rails to ensure
the vehicle cannot drop. Failure to follow these
steps could result in serious personal injury or
death.
31–01 Interlube Chassis
Lubrication System
Inspecting
1. Inspect all lubrication points for signs of fresh
grease.
2. Check the condition of all fittings and connec-
tions. Tighten or replace loose or damaged fit-
tings.
3. Check all lubrication lines; be sure there are no
breaks. Check for wear or chafing that may lead
to leakage.
4. Inspect the bottom of the Interlube pump for
leaks. If there are any signs of lubricant on the
pump, use a 12 mm wrench and turn all of the
injectors and blanking plugs 1/8 to 1/4 inch
clockwise. Do not overtighten the blanking plugs.
See
Fig. 1 .
5. Confirm pump operation by pressing the manual
override button (located on top of the reservoir)
and check to see if the indicator light flashes.
See
Fig. 2 .
6. Using clean grease, fill the reservoir every 2 to 3
months as follows. See
Table 1 for a list of ap-
proved grease.
IMPORTANT: To avoid air pockets and con-
taminants from entering the reservoir, use
the grease fill fitting when filling the reser-
voir.
f311306 12/01/2020
Do not overtighten the blanking plugs.
Fig. 1, Tightening the Injectors and Blanking Plugs
08/27/2008 f311074
1
2
1. Indicator Light
2. Manual Override Button
Fig. 2, Interlube System Reservoir
Frame
31
Walk-In Van Chassis Maintenance Manual, January 2021
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