Bendix Commercial Vehicle Systems EB/ES BRAKES SERVICE MANUAL - Manual (Page 36)

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SPECIAL NOTE: ES and ES-150-4L R.H. brakes use a R.H.
thread anchor pin retaining nut - L.H. brakes use a L.H. thread
nut. Ensure that nut is being turned in proper direction when
checking nut torque.
!
Figure 40. Spider Inspection Figure 41. Air Chamber Bracket Inspection
Lightweight
Flange
Inspection
Shoe and Lining
& Camshaft Inspection
Spider Inspection
Single Anchor Pin
1. Check visually for cracks around mounting bolt holes, in cam
area and around anchor pin. Refer to Figure 40. Replace spider if
any are found.
2. Check anchor pin. If loose or grooved more than 0.031"
(0.79mm) below original surface, replace spider assembly.
NOTE: Anchor pins are not replaceable on single anchor pin brake
spiders.
3. On EB/ES 150-4L brake check anchor pin retaining nut torque refer to
the last page of this manual for current torque values.
CAUTION: If anchor pin turns while checking retaining nut
torque, the spider assembly must be replaced.
Spider Inspection (Double Anchor Pin)
1. Check visually for cracks around mounting bolt holes and cam
and anchor pin areas. Replace spider if any are found.
2. Check anchor pin and bushings for wear, grooves and free
movement of pin. If pin is seized, or worn or grooved beyond
0.031" (0.79mm), replace pin and bushing. Refer to Shoe Removal
and Installation Sections for procedure.
NOTE: Replace pins and bushings at each brake reline.
Air Chamber Bracket Inspection
1. Check for a bent, broken, or cracked arm and cracked welds.
Refer to Figure 41. Replace bracket if any are evident.
2. Check mounting studs (or bolts) for looseness, damaged threads,
or a bent condition. Replace mounting stud if any of these conditions
are evident.