Section 13: WHEELS, HUBS & TIRES
PA1564
6
7. HUB MOUNTED WHEELS
Wheel surfaces in contact with hubs, nuts or
other wheels should be kept free of all rust,
grease and paint (except for initial “E” coat
protection, applied to stop rusting and to
facilitate wheel removal). The reason for this is
to assure that all faces are clamped together
without buildup of any coating. The threads of
the wheel studs and the wheel nuts should be
clean and undamaged.
FIGURE 5: HUB-MOUNTED WHEELS
13025
NOTE
When painting wheels, make sure to mask all
surfaces identified above.
Using a calibrated torque wrench, tighten wheel
nuts to 450 - 500 lbf-ft (610 - 680 Nm) of torque.
Do not use power tools or long bars for
tightening. Tighten wheel nuts alternately as
shown in figure 2.
NOTE
Tightening should not be done immediately
after prolonged braking or when wheel ends
are hot.
Check wheel nut torque at every 100 miles (160
km) for 500 miles (800 km) after fitting wheels.
Let cool before checking. If any relaxation of the
initial 450 - 500 lbf-ft (610 - 680 Nm) of torque
has occurred, retighten. Relaxation of initial
torque may occur because of the “bedding
down” of the hub and wheel surfaces.
NOTE
Torque relaxation occurs when wheel ends
are hot but should revert to original setting
when cool. Retightening when hot will produce
a higher torque reading than recommended.
7.1 CARE OF WHEELS
Check for cracks in wheels, especially around
the fixing holes, studs, nuts and washers. If in
doubt, renew.
Do not simply retighten very loose wheel fixings
or wheels that are continually becoming loose.
Find out why they are loose and whether any
damage has been caused.
Use trained personnel and keep records of all
attention to wheels and fixings, including which
parts were renewed and when.
8. FRONT AND TAG AXLE WHEEL HUBS
The unitized hub bearings used on the NDS
range of axles, are non-serviceable items.
Bearings are pre-adjusted, lubricated and have
seals fitted as part of the manufacturing process.
The bearings are greased for life and there is no
need or facility for re-lubrication
8.1 HUB BEARING INSPECTION
An inspection should be made at intervals of
30,000 miles (48 000 km).
•
Apply parking brake, raise wheels off the
ground and support axle on stands. When
the wheels are raised, they should revolve
quite freely without roughness.
•
Place magnetic base of a dial indicator on
brake caliper and position dial indicator stem
against a convenient marked spot on face of
hub flange.
•
With dial indicator in position pull hard but
steadily on hub flange and oscillate at same
time until a steady reading is achieved.
•
Without releasing the pressure, turn bearing
so that dial indicator stem contacts marked
spot and note reading on indicator.
•
Push bearing flange hard and oscillate as
before until a steady reading is achieved.
•
Without releasing the pressure, turn bearing
so that indicator stem again contacts the
marked spot and note new reading on
indicator.
•
The difference between readings is the
amount of mounted end play in bearing unit.
•
The mounted end play figure should not
exceed 0.050 mm (0.002”) for a new bearing
and 0.20 mm (0.008”) for a bearing which
has been in service.
Содержание LE MIRAGE XLII BUS SHELLS
Страница 1: ...COACH MANUFACTURER MAINTENANCE MANUAL LE MIRAGE XLII BUS SHELLS PA1564 1ST EDITION...
Страница 12: ...Section 00 GENERAL INFORMATION 10 PA1564 FIGURE 13 METRIC US STANDARD CONVERSION TABLE 00005...
Страница 13: ...Section 00 GENERAL INFORMATION PA1564 11 FIGURE 14 CONVERSION CHART 00006...
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Страница 229: ...FAULT CODE MANUAL Created on 00 04 25 15 30 1 FAULT CODE MANUAL B7L B7TL B12...
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Страница 303: ...SPICER SPECIALITY AXLE DIVISION place product photo here SERVICE MANUAL GENERAL INFORMATION NDS Axle range BACK RETOUR...
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Страница 348: ...Page No 18 Manual No NDS8 Spicer Speciality Axle Division Technical Publications Spicer Speciality Axle Division TP1193...
Страница 379: ...Section 12 BRAKE AND AIR SYSTEM PA1564 21 FIGURE 38 AIR OPERATED BRAKING SYSTEM WE...
Страница 380: ...Section 12 BRAKE AND AIR SYSTEM PA1564 22 FIGURE 39 AIR OPERATED BRAKING SYSTEM W5...
Страница 387: ...Section 12 BRAKE AND AIR SYSTEM PA1564 29 FIGURE 46 ABS 6S 5M CONFIGURATION...
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Страница 782: ...Section 16 SUSPENSION PA1564 22 FIGURE 26 SWAY BAR FRONT SUSPENSION 16138D FIGURE 27 SWAY BAR REAR SUSPENSION 16014...
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Страница 1083: ...Section 22 HEATING AND AIR CONDITIONING PA1564 15 FIGURE 16 REFRIGERANT CIRCUIT CENTRAL SYSTEM 22247...
Страница 1086: ...Section 22 HEATING AND AIR CONDITIONING PA1564 18 FIGURE 17 DOUBLE SWEEP EVACUATION SET UP...
Страница 1106: ...Section 22 HEATING AND AIR CONDITIONING PA1564 38 FIGURE 39 REFRIGERANT CIRCUIT SMALL SYSTEM 22350...
Страница 1108: ...Section 22 HEATING AND AIR CONDITIONING PA1564 40 FIGURE 42 CENTRAL HEATING SYSTEM COMPONENTS 22338...
Страница 1118: ...Section 22 HEATING AND AIR CONDITIONING PA1564 50 FIGURE 54 HEATER LINE SHUTOFF VALVES WE...
Страница 1119: ...Section 22 HEATING AND AIR CONDITIONING PA1564 51 FIGURE 55 SMALL HEATING SYSTEM COMPONENTS 22337...
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Страница 1125: ...Compressor 62 11052 Rev A WORKSHOP MANUAL for MODEL 05G TWIN PORT COMPRESSOR R...
Страница 1126: ...WORKSHOP MANUAL COMPRESSOR MODEL 05G TWIN PORT...
Страница 1149: ...Compressor 62 11053 Rev B SERVICE PARTS LIST for MODEL 05G TWIN PORT COMPRESSOR 1 2 3 4 5 6 R...
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Страница 1205: ...Section 24 LUBRICATION PA1564 5 FIGURE 1 LUBRICATION AND SERVICING POINTS ON INDEPENDENT FRONT SUSPENSION VEHICLES 24036_1...
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Страница 1223: ...Section 26 XLII SLIDE OUT PA1564 11...
Страница 1224: ...Section 26 XLII SLIDE OUT PA1564 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION...