PARKING BRAKE CONTROL VALVE REPLACEMENT - CONTINUED
REMOVAL - CONTINUED
DO NOT disconnect or remove any hydraulic system line or fitting unless hydraulic system pres-
sure has been relieved. Tighten all connections before applying pressure. Escaping hydraulic fluid
under pressure can penetrate the skin, causing serious injury.
Search for leaks with a piece of cardboard. Protect hands and body from high-pressure fluids. If
an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically
removed within a few hours or gangrene may result.
At operating temperature, hydraulic oil is hot. Allow hydraulic oil to cool before disconnecting
any hydraulic lines. Failure to do so could result in injury.
Hydraulic fluid is very slippery. Immediately wipe up any spills. Failure to follow this warning
may result in injury to personnel.
Wipe area clean around all hydraulic connections prior to disconnecting. Cap or plug all openings
after disconnecting. Contamination of hydraulic system could result in equipment failure.
Tag hoses and connectors for installation.
Disconnect three hydraulic hoses (9) and remove three fittings (8) from control valve (4).
Disconnect two connectors (12) of wiring harness from switch (11).
Remove switch (11) from control valve (4).
Remove two locknuts (5), washers (6), screws (7), and control valve (4) from control valve bracket (1). Discard lock-
If control valve bracket (1) is damaged, remove two locknuts (10) and control valve bracket from cab. Discard locknuts.