•
Inspect slack adjuster boots, if equipped,
for cuts or tears.
•
Inspect anchor straps, if equipped, for
damage.
•
Look for worn clevis pins on brake cham-
ber pushrods.
•
Look for missing or damaged cotter pins
on the clevis pins.
•
Ensure chamber piston rods are in line
with the slack adjusters.
Wheel and Tire Inspection
Walk around the vehicle and visually inspect each
wheel and tire assembly.
IMPORTANT: Wheel covers decrease drag force
as a vehicle moves, thereby improving fuel effi-
ciency. If replacement of a wheel cover is nec-
essary, the replacement cover must meet or ex-
ceed the drag reduction performance of the
originally installed cover in order to maintain
compliance with greenhouse gas and full effi-
ciency regulations (GHG14).
1.
If the vehicle was originally equipped with wheel
covers, ensure all wheel covers are present. In-
spect wheel covers for damage or wear. Remove
wheel covers from rear drive wheels, if equipped,
prior to inspecting the tires and wheel compo-
nents.
NOTE: During wheel cover installation, ensure
the V-notch in the liner inner retaining ring is
centered on the valve stem. The inner and outer
retaining rings should be uniformly aligned to
each other and to the wheel rim. The outer re-
taining ring of the liner is equipped with two
canvas flaps. When installing the face cover,
make sure the cover retaining ring is inserted
between the two canvas flaps on the liner outer
retaining ring so that the Velcro strips line up
between the face cover and the liner. Make cer-
tain the detachable view cover is centered on
the face cover, and the Velcro strips are
pressed firmly in place.
2.
Inspect each tire for the following:
•
valve stem caps on every tire, screwed on
finger-tight
•
bulges, cracks, cuts, and penetrations
•
oil contamination (petroleum derivatives will
soften the rubber and destroy the tire)
•
tread depth—if tread is less than 4/32 inch
(3 mm) on any front tire, or less than 2/32
inch (1.5 mm) on any rear tire, replace the
tire
•
debris lodged between duel tire sets
IMPORTANT: Low-rolling resistance (LRR) tires
minimize wasted energy as a tire rolls, thereby
decreasing rolling effort and improving fuel effi-
ciency. If tire replacement is necessary, replace-
ment tires must meet or exceed the rolling resis-
tance of the originally installed tires in order to
01/31/2011
f422530
1
2
3
4
5
6
7
8
9
10
1.
Grease Fitting (if
equipped)
2.
Slack Adjuster
Housing
3.
Brake Chamber
Pushrod
4.
Clevis
5.
Clevis Pin (large)
6.
Clevis Pin (small)
7.
Actuator Rod
8.
Boot
9.
Manual Adjusting Nut
10. Camshaft Splines
Fig. 21.3, Meritor Automatic Slack Adjuster
Pre- and Post-Trip Inspections and Maintenance
21.2
Summary of Contents for cascadia
Page 1: ...Driver s Manual CASCADIA Part Number STI 478 Publication Number STI 478 6 ...
Page 106: ...9 Cab Features Windows 9 1 Mirrors 9 1 Cab Amenities 9 1 Sleeper Amenities 9 2 ...
Page 163: ...16 Drive Axles Differential Locks 16 1 Two Speed Drive Axles 16 2 ...
Page 167: ...17 Steering System Power Steering System General Information 17 1 Power Steering Systems 17 1 ...
Page 180: ...19 Trailer Couplings Air Suspension Dump Valve 19 1 Holland Trailer Coupling 19 1 ...
Page 229: ...26 Specifications Fuses and Relays 26 1 Replacement Bulbs 26 3 Fluids and Lubricants 26 4 ...