TRUCK SERVICE MANUAL
Coat entire anchor plunger with grease, packing
cavity behind seal, and insert plunger and seal
into housing with plunger key-way slot aligned
with guide screw hole. Make certain the plunger
goes all the way into the plunger bore and seats
on bosses at the bottom.
Seat plunger seal in plunger housing with correct
seal driver tool.
Carefully push the double lip seal onto the plunger,
stretching the outer seal lip over the plunger nose end,
until the inner seal lip is completely in the second plunger
groove and the outer seal lip is in the first plunger
groove. Remove masking tape. (Brakes employing
single grooved plungers and single lip seals should be
Driver must be centered over seal retainer to prevent
assembled in the same manner except masking tape is
damage to seal assembly.
3. On manual adjusting plungers-
push the inner seal lip over the
threaded hole end of the plunger
.until the lip completely., enters the
paragraph 4 on page 2 1 for
automatic, adjusting plungers.'
C. INSTALL PLUNGERS INTO
1. Coat all plunger bores with grease.
2. Anchor (solid) plungers-make sure anchor plungers
marked "L" are installed in left hand brake and anchor
plungers marked "R" are installed in the right hand
See pagel99for correct location of anchor
plungers in the plunger housings.
Driver for backing plate mounted brakes. If seal driver is
not available a 13/4" wrench 211 socket can be used for
spider mounted brakes and 13/8" wrench socket can be