Section 12: BRAKE AND AIR SYSTEM
PA1564
25
NOTE
When the diaphragm, spring, or both are
replaced, they should be replaced in the
corresponding chamber on the same axle.
3. Perform an airtighteness test:
a) Make and hold a full brake application.
b) Coat clamping ring(s) with a soapy solution.
If leakage is detected, tighten clamping ring
only enough to stop leakage.
Do not
overtighten
as this can distort sealing
surface or clamping ring. Coat area around
push rod hole (loosen boot if necessary). No
leakage is permitted. If leakage is detected,
the diaphragm must be replaced.
28.2 EMERGENCY/PARKING
BRAKE
MANUAL RELEASE
DANGER
Never stand in the axis line of the spring brake
chambers, especially when caging the spring.
Drive Axle
1. Block the wheels to prevent the vehicle from
moving.
2. Remove the release stud tool from its
storage place on drive axle brake air cham-
ber.
3. Remove the access plug from the end of the
spring chamber, then insert the release stud
through the opening. Turn the release stud
¼ turn (clockwise) to anchor it into the
spring plate. Install the flat washer and nut,
then turn the nut clockwise to cage the
spring. Repeat on the opposite side.
DANGER
Make sure the release stud is properly
anchored in spring plate receptacle prior to
caging the spring.
4. To manually reset the emergency/parking
brake, turn the nut counterclockwise. Rein-
stall access plugs on the spring chambers,
and release stud tools in their storage
places.
Tag Axle
1. Block the wheels to prevent the vehicle from
moving.
2. Turn the release bolt counterclockwise to
cage the power spring (approx. 2.5 inches
(6 cm)). Repeat on the opposite side.
3. To manually reset the emergency/parking
brake, turn the bolt clockwise.
28.3
BRAKE CHAMBER REMOVAL
WARNING
To prevent personal injuries, brakes should be
inoperative prior to working on any of their
components.
To prevent personal injuries, brake chambers
should be made inoperative by releasing
spring tension prior to disposal.
1. Block the wheels to prevent the vehicle from
moving.
2. Safely support vehicle at the recommended
body jacking points.
3. To gain access to a given brake air
chamber, the corresponding wheel can be
removed (refer to Section 13:
"Wheels,
Hubs and Tires"
).
4. Exhaust compressed air from system by
opening the drain valve of each reservoir.
5. For the drive and tag axles brake chambers,
manually release spring brakes (refer to
"
Emergency/Parking Brake, Manual
Release"
procedure in this section).
6. Disconnect air line(s) from brake chamber.
7. Remove the cotter pin connecting brake
chamber and slack adjuster (drive axle).
8. Unbolt and remove the brake chamber from
vehicle.
28.4
BRAKE CHAMBER INSTALLATION
Reverse removal procedure, then check brake
adjustment.
CAUTION
Always clean air lines and fittings, and coat
pipe threads with teflon pipe sealant before
reconnecting air lines.
Summary of Contents for LE MIRAGE XLII BUS SHELLS
Page 1: ...COACH MANUFACTURER MAINTENANCE MANUAL LE MIRAGE XLII BUS SHELLS PA1564 1ST EDITION...
Page 12: ...Section 00 GENERAL INFORMATION 10 PA1564 FIGURE 13 METRIC US STANDARD CONVERSION TABLE 00005...
Page 13: ...Section 00 GENERAL INFORMATION PA1564 11 FIGURE 14 CONVERSION CHART 00006...
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Page 63: ...SECTION 01 ENGINE PA1564 33 FIGURE 13 POWER PLANT CRADLE INSTALLATION 01140...
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Page 229: ...FAULT CODE MANUAL Created on 00 04 25 15 30 1 FAULT CODE MANUAL B7L B7TL B12...
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Page 379: ...Section 12 BRAKE AND AIR SYSTEM PA1564 21 FIGURE 38 AIR OPERATED BRAKING SYSTEM WE...
Page 380: ...Section 12 BRAKE AND AIR SYSTEM PA1564 22 FIGURE 39 AIR OPERATED BRAKING SYSTEM W5...
Page 387: ...Section 12 BRAKE AND AIR SYSTEM PA1564 29 FIGURE 46 ABS 6S 5M CONFIGURATION...
Page 418: ...16 BW2158 Honeywell Commercial Vehicle Systems Company 4 2001 Printed in USA...
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Page 1086: ...Section 22 HEATING AND AIR CONDITIONING PA1564 18 FIGURE 17 DOUBLE SWEEP EVACUATION SET UP...
Page 1118: ...Section 22 HEATING AND AIR CONDITIONING PA1564 50 FIGURE 54 HEATER LINE SHUTOFF VALVES WE...
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Page 1125: ...Compressor 62 11052 Rev A WORKSHOP MANUAL for MODEL 05G TWIN PORT COMPRESSOR R...
Page 1126: ...WORKSHOP MANUAL COMPRESSOR MODEL 05G TWIN PORT...
Page 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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Page 1223: ...Section 26 XLII SLIDE OUT PA1564 11...
Page 1224: ...Section 26 XLII SLIDE OUT PA1564 12 FIGURE 16 KEYLESS BUSHING INSTALLATION INSTRUCTION...