Figure 5-8
Wiring
A universal wiring harness and other miscellaneous wiring
materials are included in the kit.
1. Install solenoid harness by connecting one end to the
solenoid valve and the other to the inside terminal in the
spacer assembly.
2. Install the remainder of the wiring following the
instructions included with the universal wiring harness and
wiring diagram shown in Figure 5-8.
3. All wiring should be routed to avoid areas of high heat
and mechanical interference where chaffing could occur.
4. Check system to determine if voltage is present at
terminals in engine brake spacer assembly. Voltage should
be present when engine is not running, with ignition on,
clutch disengaged, throttle in idle position, and all dash
switches in the “on” position.
5. While monitoring voltage at terminals in the engine
brake spacer, operate the switches to determine if they are
functioning properly. Depressing either the clutch or the
throttle pedal should cause the voltage to be interrupted.
SECTION 6 - ENGINE BRAKE MAINTENANCE
The engine brake is designed to be trouble free and does
not require special maintenance. During regularly
scheduled maintenance, or if a problem occurs, the
procedures described below should be followed.
CAUTION: Do not remove any engine brake
component while the engine running. This may result
in personal injury. Use only approved cleaning
solvents.
Solenoid Valve
1. Disconnect the electrical lead from the solenoid and
remove solenoid with a spanner wrench. Remove and
discard the three rubber seal rings.
2. Clean the filter screen and solenoid with solvent then
dry with low air pressure.
3. Clean solenoid bore with solvent and wipe dry with
paper towel. Be careful not to leave any lint or residue in
bore that may contaminate brake hydraulic components.
Figure 6-1
4. Reinstall solenoid valve using three new o-rings. Coat
solenoid body with engine lube oil and install upper and
center seal rings on solenoid body. Seat lower seal ring in
bottom bore of brake.
5. Carefully screw in solenoid valve, using care to assure
O-rings remain in position and are not twisted or “rolled”.
7
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