BRAKE HYDRAULIC PRESSURE SWITCH MAINTENANCE

TM 10-3930-660-24-1

BRAKE HYDRAULIC PRESSURE SWITCH MAINTENANCE

0077 00

THIS WORK PACKAGE COVERS

Removal, Installation, Testing

INITIAL SETUP

Materials/Parts - Continued

Tools and Special Tools

Tool kit, general mechanic's (Item 39, WP 0324 00)

Varnish, anti-fungus (Item 59, WP 0323 00)

Shop equipment, common no. 1 (Item 20, WP 0324

Equipment Condition

Vehicle parked on level ground (TM 10-3930-660-

Materials/Parts

10)

Sealant, Loctite (Item 48, WP 0323 00)

Battery cables disconnected (WP 0107 00)

Tag, marker (Item 57, WP 0323 00)

REMOVAL

NOTE

Tag all electrical connections before removing for use during installation.

The brake hydraulic pressure switch is located under the vehicle cab, mounted on an elbow attached to the

brake control valve.

With the engine off, pump the brake pedal a minimum

of 20 times to exhaust stored pressure in the brake sys-

tem.

Disconnect two female connectors (1) of vehicle wir-

ing harness from two male connectors (2) at brake

hydraulic pressure switch (3).

Place a container to catch hydraulic oil that will

briefly spill out of elbow (4) after switch (3) is

removed.

1,2

409-4027