Bendix Commercial Vehicle Systems 16 1/2 SCAM/XTRA LIFE SERV MANUAL - Manual (Page 11)

Standard Chamber Long Stroke Chamber
Rated Stroke Max Readjust Stroke Rated Stroke Max Readjust Stroke
12 1.75 1.38 2.00 1.50
16 2.25 1.75 2.50 2.00
20 2.25 1.75 2.50 2.00
24 2.25 1.75 2.50 2.00
30 2.50 2.00 2.75 2.25
36 3.00 2.25 - -
A schedule should be e A schedule should be e A schedule should be e A schedule should be e A schedule should be est st st st stablished for periodic ablished for periodic ablished for periodic ablished for periodic ablished for periodic
adjustment, inspection and lubrica adjustment, inspection and lubrica adjustment, inspection and lubrica adjustment, inspection and lubrica adjustment, inspection and lubrication. This sched- tion. This sched- tion. This sched- tion. This sched- tion. This sched-
ule is de ule is de ule is de ule is de ule is detttttermined fr ermined fr ermined fr ermined fr ermined from v om v om v om v om vehicle o ehicle o ehicle o ehicle o ehicle owner/oper wner/oper wner/oper wner/oper wner/operaaaaatttttor or or or orsssss
eeeeexperience and the t xperience and the t xperience and the t xperience and the t xperience and the type of oper ype of oper ype of oper ype of oper ype of operaaaaation tion tion tion tion.
BRAKE DRUMS
Inspect for heat checks, grooves, hot spots, glazing,
cracks, and out of round. Drums which are glazed,
grooved, or have moderate heat checking may be
resurfaced and returned to service. The drum should
not be used if it exceeds the manufacturer’s recom-
mended maximum diameter stamped on the drum.
BRAKE ADJUSTMENT
Brakes should be adjusted whenever the air chamber
push rod stroke exceeds the maximum distance accord-
ing to the chart shown in FFFFFigur
igur igur igur igure 2 e 2 e 2 e 2 e 2. To determine if
brake adjustment is required measure the push rod
stroke with the brakes applied as shown in FFFFFigur
igur igur igur igure 3 e 3 e 3 e 3 e 3 on on on on on
page 1 page 1 page 1 page 1 page 10. 0. 0. 0. 0.
PREVENTATIVE MAINTENANCE
CA CA CA CA CAUTION: UTION: UTION: UTION: UTION: Drums displa Drums displa Drums displa Drums displa Drums displaying hea ying hea ying hea ying hea ying heat checks with t checks with t checks with t checks with t checks with
a contin a contin a contin a contin a continuous length of four inche uous length of four inche uous length of four inche uous length of four inche uous length of four inches or mor s or mor s or mor s or mor s or more and e and e and e and e and
eeeeext xt xt xt xtends ar ends ar ends ar ends ar ends around the edge of the drum should be ound the edge of the drum should be ound the edge of the drum should be ound the edge of the drum should be ound the edge of the drum should be
rrrrreplaced. eplaced. eplaced. eplaced. eplaced. See F See F See F See F See Figur igur igur igur igure 1. e 1. e 1. e 1. e 1.
FFFFFigur igur igur igur igure 1 e 1 e 1 e 1 e 1
FFFFFigur igur igur igur igure 2 e 2 e 2 e 2 e 2
Chamber Size
Type
RECOMMENED AIR BRAKE ACTUATOR SERVICE STROKE
Source: The Maintenance Council RP 635
9