MEGA Corp. MHT175-CAT777-OPS-1 - Manual (Page 23)

MHT175-CAT777(G)-1
1 Aug 2012
SECTION 4
Normal Operations
4-5
16. RH Door Hydraulic Cylinders, Structure
Cavity Drain Holes and Lights –
CHECKED FOR DAMAGE, SECURITY
AND LEAKS
17. RH Hitch Deck and Fender – CHECKED
FOR DAMAGE AND SECURED
18. (If Equipped) RH Consolidated Service
Center – LEVELS CHECKED.
DECOUPLED OPERATIONS
The procedures are used to operate the chassis
with
the trailer removed (decoupled).
Decoupled operations can only be attempted
when the brake and associated control
systems are reconfigured for decoupled
operations.
Do not operate the chassis (decoupled) from
the trailer unless the brake and associated
control systems are configured properly.
Failure to ensure proper brake system
configuration exists, may result in inoperative
service, parking and secondary brake systems.
Operating the chassis with inoperative brake
systems may result in personal injury or
death.
INSPECTION
1. Vehicle Engine – AS REQUIERED
2. Chocks – INSTALLED
3. Transmission Control Lever –P (Park)
4. Hoist Control Lever – HOLD
5. Gain access to forward hitch area by using
the deck assembly. Identify the LT and
RT junction manifolds.
6. Confirm with maintenance and perform
actual inspection of the chassis systems to
ensure the following brake and control
system configuration exist.
Brake Cooling Manifold (RT Side)
a. A jumper hose connects the brake
cooling port to the brake return port
(-32 fitting).
Brake Activation Manifold (LT Side)
b. Grease port trailer supply port is
capped off (-8 fitting).
c. Brake accumulator trailer supply port
is capped off (-16 fitting).
d. Trailer service return port is capped
off (-16 fitting).
e. Trailer E-Brake/Parking brake retract
supply port is capped off (-10 fitting).
f. Trailer service brake signal in and out
ports (-8 fittings).
Control System
g. Chassis mounted junction box or Y-
harness connection is configured or
jumpered to allow normal tail light
and backup alarm functions.
7. Ensure hitch and deck area are clear of
tools and debris.
8. Vehicle Engine - Start