Meritor MM-2075 Maintenance Manual page 31

Bridge Bolts
WARNING
Do not remove the bridge bolts to perform service procedures. If
the bridge bolts are removed, reinstall them correctly to prevent
serious personal injury and damage to components.
If the bridge bolts were removed, install new bridge bolts and
tighten them in the correct sequence according to the following
procedure. To obtain bolt hardware kits, call Meritor's Commercial
Vehicle Aftermarket at 888-725-9355. Do not rebuild the calipers
with used caliper parts.
1. Verify the two caliper halves are seated. If necessary, lightly
press the halves together until correctly seated.
2. Loosely assembly all bridge bolts.
3. Perform the following two-step bolt tightening procedure.
a. Tighten the bolts to an initial torque of 50 lb-ft (68 Nm) in
the sequence 1, 2, 3, 4. Figure 9.2.
b. Use torque angle equipment to turn the bolts 70 +3/–2
degrees in the sequence 1, 2, 3, 4.
3
1
Figure 9.2
Table A: Four-Piston Quadraulic™ Disc Brake Components
Description Specification
Brake Pad 0.73" (18.5 mm) — Thickness
Above Metal (New) Minimum
0.125" (3.2 mm) — Thickness
Above Metal (Discard)
Brake Fluid — High- Caliper approved for use with DOT 3,
Performance Brake Fluid DOT 4 and DOT 5.1.
(Per Manufacturer's
Recommendation)
(16579)
Printed in USA
2
4
4006999b
Copyright Meritor, Inc., 2023
10 Specifications
MM-2075 / Revised 09-23
Page 27