PREVOST GKN AXLES LIMITED KIRKSTALL DIVISION, Руководство по обслуживанию

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Section 16: SUPPLEMENT INFORMATION ON INDEPENDENT FRONT SUSPENSION (IFS)
16-34
Brake pads have to be checked on a regular basis
depending on vehicle operation. The remaining
thickness of the pads should never be less than
3/32 in (2 mm). To check pad condition without
removing the wheel, verify the position of guide
bushing relation to guide sleeve (Fig. 32). When
guide sleeve is in alignment with guide bush,
brake pad thickness has to be checked more
precisely with wheel removed. When replacing the
brake pads, all four pads on an axle have to be
changed at the same time. There is no inner or
outer pad, since all pads are the same.
FIGURE 32: DISC BRAKE PADS CHECKING
12043
For information on how to change the brake pads,
refer to the manufacturer's brochure, annexed to
this supplement.
Note:
While braking in new brake pads, avoid
long brake applications as well as harsh braking.
13. BRAKE AIR CHAMBER
The front wheels are equipped with "Knorr-
Bremse" brake chambers, used for service brake.
13.1 Maintenance
Refer to maintenance manual, Section 12, para-
graph "16.2 Maintenance".
Caution:
On Knorr-Bremse air chamber (front
wheels), do not use molybdenumsulphite com-
bined grease. Use brake chamber with inner
sealing, and ensure that the o-ring is in the correct
position between the brake caliper and brake
chamber.
14. WHEELS AND TIRES
Either disc steel wheels or optional aluminum-
polished wheels may be installed on the vehicle.
Both are mounted with radial tubeless tires.
Both steel and aluminum wheel dimensions are
22.50 X 9 inches (571.5 X 228.6 mm) exept the
inner dual wheel dimensions 22.5 X 8.25 inches
(571.5 X 209.5 mm).
Recommended tire dimensions (in order of
preference):
315/80 R 22.5;
12.75/80 R 22.5;
12.00 R 22.5;
295/80 R 22.5;
11.00 R 24.5.
15. HUB UNIT AND SWIVEL
ASSEMBLY MAINTENANCE
Refer to GKN AXLES LIMITED KIRKSTALL DI-
VISION, Service Manual, annexed at the end of
this Supplement.