Bendix Commercial Vehicle Systems 16 1/2 SCAM/XTRA LIFE SERV MANUAL - Manual (Page 18)

BRAKE SHOE ASSEMBLY
STANDARD, XL & XL II SERIES
1. 1. 1. 1. 1. Install new return spring pins:
A. St A. St A. St A. St A. Standar andar andar andar andard Serie d Serie d Serie d Serie d Seriesssss- Wireform pin installed in shoe
ribs with mallet.
B. XL Serie B. XL Serie B. XL Serie B. XL Serie B. XL Seriesssss- 2 piece kit assembly consisting of
inner pin and outer pin.
2. 2. 2. 2. 2. Apply a thin film of Lubriplate 630-A grease or its
equivalent to the anchor pin.
3. 3. 3. 3. 3. Install new brake retaining springs in the anchor
end of shoes. Place the top shoe onto the spider
by engaging the open slots on the end with the
retaining springs onto the anchor pin. Place
opposite end of the shoe against the S-cam. Swing
the lower shoe, with springs attached, back until
slots in the shoe engage the anchor pin. Rotate the
shoe toward the S-cam. Lower shoe may require
support while completing assembly.
4a. 4a. 4a. 4a. 4a. St St St St Standar andar andar andar andard Serie d Serie d Serie d Serie d Seriesssss- Utilize leg on shoe return spring
to aid in assembly. Place the one hook of the brake
shoe return spring onto the return spring pin.
Hold shoes firmly against the S-cam. Push the
other hook of the brake shoe return spring over the
opposite return spring pin until it snaps in place.
4b. 4b. 4b. 4b. 4b. XL/XL II Serie XL/XL II Serie XL/XL II Serie XL/XL II Serie XL/XL II Seriesssss- place the one hook of the brake
shoe return spring onto the return spring pin
located between the shoe ribs. Hold both shoes
against the S-cam head. Push the other hook of
the return spring over the opposite shoe spring pin
until it snaps in place.
5. 5. 5. 5. 5. Apply a thin film of Lubriplate 630-A grease or its
equivalent to the cam roller journal, and the roller
side only. Do not put grease on the end of the
roller which contacts the cam head.
6. 6. 6. 6. 6. Insert sturdy lever between end of shoe and the
return spring pin. See F
See F See F See F See Figur igur igur igur igure 1 e 1 e 1 e 1 e 13 3 3 3 3. Pry away from
the cam until cam rollers can be installed between
BRAKE ASSEMBLY (CONTINUED)
the S-cam and the slots in the end of the brake
shoe. Make sure the cam rollers are in the lowest
position on the cam. Repeat procedure for oppo-
site side.
CAST SHOE SERIES
1.
1. 1. 1. 1. Apply a thin film of Lubriplate 630-A grease or its
equivalent to the anchor pin.
2. 2. 2. 2. 2. Place snap ring on anchor pin end with grease
fitting. Place thin spacer onto anchor pin.
3. 3. 3. 3. 3. Align anchor pin end of cast shoe with spider bore.
4. 4. 4. 4. 4. Install anchor pin through backside of shoe and
spider. Repeat procedure for opposite shoe.
5. 5. 5. 5. 5. Place thin spacer onto opposite side of anchor pins
and install snap rings.
6. 6. 6. 6. 6. Hook shoe return spring by pushing shoes to-
gether. The cast shoe does not have a separate
return spring pin. The spring hook-up feature is
designed into the shoe casting.
7 7 7 7 7..... Insert sturdy lever between end of shoe and spider.
Pry shoe away from cam until cam rollers can be
installed. Repeat procedure for opposite side. See
See See See See
FFFFFigur igur igur igur igure 1 e 1 e 1 e 1 e 13. 3. 3. 3. 3.
16
FFFFFigur igur igur igur igure 1 e 1 e 1 e 1 e 13 3 3 3 3