VEHICLE SYSTEMS
TM 5-3805-263-14&P-3
PARKING BRAKE ROTOCHAMBER AND RELEASE VALVE,
PARKING BRAKE ROTOCHAMBER
REMOVE PARKING BRAKE ROTOCHAMBER AND
RELEASE VALVE
1. Release the air pressure in the air tank by
loosening the bleed valves.
Do not disconnect the air line from
the parking brake release valve until
the air pressure is zero.
2. Disconnect the air line from parking brake
release valve (6). Connect a shop air line to the
valve. Remove cotter pin (5) that holds pin (4).
Remove pin (4) from the rod end and the lever.
Remove the shop air line.
3. Remove bolts (8) and nuts (7) that hold bracket
(3) to the machine. Remove parking brake
rotochamber (1) and release valve (6). Remove
the release valve from the rotochamber.
Remove bolts (2) that hold the rotochamber to
bracket (3). Remove bracket (3).
INSTALL PARKING BRAKE ROTOCHAMBER AND
RELEASE VALVE
1. Put bracket (4) in position on rotochamber (1).
Install nuts (2) that hold it. Install the release:
valve on the rotochamber.
2. Put the rotochamber, release valve and bracket
in position on the machine. Install the bolts,
washers and nuts that hold bracket (4) to the
machine. Connect a shop air line to the release
valve. Install the pin that holds lever (3) to rod
end (5). Install the cotter pin in the pin. Remove
the shop air line. Connect the air line to the
release valve.
DISASSEMBLE PARKING BRAKE ROTOCHAMBER
Tools Needed
A
1H3107
Puller Assembly
1
5F7343
Bearing Puller Attachment
1
T774
Spacer
1
start by:
a) remove parking brake rotochamber and
release valve
1. Remove the clamp that holds boot (1) to the
piston. Remove the nuts that hold retainer (2) to
the rotochamber. Remove the boot and the
retainer.
2. Remove nuts (3) that hold the rod and end (4) in
the piston. Remove the rod and the end.
3. Install tooling (A) on the rotochamber. Remove
4. Remove tooling (A) from the rotochamber.
bolts (5) that hold the cover to the housing.
Slowly release the tension on the spring with
tooling (A).
4. Remove tooling (A) from the rotochamber.
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