Meritor MM-2075 Maintenance Manual page 13

BRAKE PAD
RETAINER
SPRING BOLT
Figure 4.2
7. Install a screw driver into the veins of the rotor. Using the
screw driver as a fulcrum, use a pry bar to apply force to the
brake pad backing plate to help seat the pistons. Figure 4.3.
PRY
BAR
BRAKE PAD
BACKING
PLATE
Figure 4.3
CAUTION
Avoid placing direct pressure on a piston or damage to
components can result.
8. Remove the brake pads from the caliper and brake pad wear
plates. Figure 4.3.
9. Inspect the rotor as part of brake pad service. Refer to Rotor
on page 16.
10. Inspect the disc brake calipers for leakage, damage or defects
to piston boots, seals or pistons. Replace or repair the parts
as required.
11. Clean and inspect the lining wear plates. Replace damaged
or worn wear plates. Install wear plates and tighten to
specification. Figure 4.4.
(16579)
Printed in USA
4003804b
Insert screwdriver
to retain disc.
Seat the
pistons.
4011818h
Copyright Meritor, Inc., 2023
4 Removal and Disassembly
BOLT
BOLT
Figure 4.4
NOTE: New brake pads are identical and there are no specific
inboard or outboard brake pads. If the old pads are reinstalled,
they should be installed in the same position from which they were
removed. Reinstalling old pads in the wrong position will result in
accelerated and/or uneven lining wear.
12. Install the brake pads with the friction material surface toward
the rotor face. The brake pads should drop into the caliper and
move freely. Investigate any condition were the pads do not
move freely. Failure to determine and correct the root cause
can result in accelerated and/or uneven lining wear. Install the
pad retainer spring and tighten the bolt. Refer to Section 8.
Figure 4.5.
BRAKE PAD
RETAINER
SPRING BOLT
Figure 4.5
13. Repeat the process on the other wheel end of the axle being
serviced.
14. Check the brake reservoir fluid level. Add OEM-approved fluid
as needed. Tighten the reservoir cap.
15. Apply the brakes a few times to adjust the pistons from the
seated position required to install the new brake pads.
16. Recheck the brake reservoir fluid level and add OEM-approved
fluid as needed.
WEAR PLATE
WEAR PLATE
4011818f
4003804b
MM-2075 / Revised 09-23
Page 9