Brakes
Page 58
B0-150-00 and MX-016-00
MB-150-03
BRAKE ADJUSTMENT
Service Brake
Mechanical and Hydraulic Brakes
The mechanical and hydraulic brake assemblies are
identical except for hydraulic fittings. The adjustment
procedure is the same for both the mechanical and
hydraulic brakes.
Note: The brake adjustment is inside of the left
and right brake. Do not adjust the brake
by means of the brake cables as this will
cause mis-operation of the brakes. If you
hear a single “clunking” noise while braking
it may be due to mis-adjustment of the
brake cables or linkage. Refer to
Replace
Brake Linkages/Cables
for information
regarding proper adjustment of the cables
and linkages.
1: Raise the wheel off of the ground and support
with jack stands.
2: Release the park brake.
3: Remove the tire/wheel assembly.
Note: Refer to
Tires and Wheels
section for
information on removing the wheel.
4: Align the adjusting access slot in the brake drum
with the adjusting star wheel at the bottom of the
brake.
5: While rotating the brake drum back and forth,
rotate the brake adjuster star wheel until the
brake is tight enough so that brake drum cannot
be rotated.
6: Back off the star wheel just enough so that the
brake drum rotates freely.
7: Install the tire/wheel assembly.
8: Repeat this procedure for the opposite side
brake.
9: Set the park brake.
10: Reconnect the main positive and negative cables
at the batteries.
11: Remove blocks from behind the wheels.
12: Release the park brake and test drive the vehicle.
Adjust the Service Brake Linkage
Do not use this procedure to adjust the brakes. This
procedure should only be performed when replacing
any of the mechanical brake linkages or cables or it is
found that the cables or linkages have been adjusted
incorrectly.
1: Release the park brake.
2: Loosen the clevis jam nuts on the main brake
cable and connecting rod.
3: Loosen the brake cable and connecting rod.
4: Adjust the park brake linkage so that the angle
between the connecting rod and the cross shaft
tab is at 60 degrees.
5: Tighten the brake cable so that all slack is
removed from the cable, but not so much so that
the cross shaft rotates.
6: Tighten the connecting rod so that all slack is
removed from the brake cables, but not so much
as to actuate the brakes.
7: Tighten the jam nuts on the brake cable,
connecting rod, and park brake linkage.
8: Set the park brake.
9: Reconnect the main positive and negative cables
at the batteries.
10: Remove blocks from behind the wheels.
11: Release the park brake and test drive the vehicle.
Parking Brake, Mechanical Brakes
Trucks equipped with mechanical drum brakes do not
have a separate adjustment for the parking brake. If
the parking brake requires adjustment, then the entire
brake system is in need of adjustment. Refer to
Adjust
the Service Brake
section for information regarding
adjusting the brakes.
Adjusting the brakes by means of the brake cables
could cause a hard brake pedal with little or no
braking power. This could cause loss of control of
the vehicle resulting in severe bodily injury and /or
property damage.
WARNING
Brake linkage with protractor in place
at 60 degrees
Summary of Contents for B0-150-00
Page 6: ......
Page 12: ...Page 12 MB 150 03 Introduction B0 015 00 and MX 016 00 Notes...
Page 20: ...PM Schedule Page 20 B0 015 00 and MX 016 00 MB 150 03 Notes...
Page 21: ...Table of Contents Special Tool List Special Tool List Tool List 22 Troubleshooting Guide 23...
Page 24: ...Tool List Page 24 B0 150 00 and MX 016 00 MB 150 03 Notes...
Page 27: ...Lubrication Page 27 MB 150 03 B0 150 00 and MX 016 00 LUBRICATION DIAGRAM...
Page 28: ...Lubrication Page 28 B0 015 00 and MX 016 00 MB 150 03 Notes...
Page 36: ...Front Axle Page 36 B0 150 00 and MX 016 00 MB 150 03 Notes...
Page 53: ...Steering Page 53 MB 150 03 B0 015 00 and MX 016 00 Exploded View of Steering Gear...
Page 72: ...Drive Motor Page 72 B0 015 00 and MX 016 00 MB 150 03 Notes...
Page 78: ...Tires Wheels Page 78 B0 015 00 and MX 016 00 MB 150 03 Notes...
Page 104: ...Replacement Parts Page 104 MB 150 03 B0 015 00 and MX 016 00 TRANSAXLE ASSEMBLY...
Page 116: ...Replacement Parts Page 116 MB 150 03 B0 015 00 and MX 016 00 FRAME AND BODY CAB...
Page 119: ...Replacement Parts Page 119 Not available at time of printing MB 150 03 B0 015 00 and MX 016 00...
Page 120: ...Replacement Parts Page 120 MB 150 03 B0 015 00 and MX 016 00 LINKAGE THROTTLE AND BRAKE...
Page 134: ...Replacement Parts Page 134 MB 150 03 B0 015 00 and MX 016 00 Notes...