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Prior to cab removal or repair procedures, it may be
necessary to remove the body to provide clearance for
lifting equipment to be used. If body removal is not
required, the body should be raised and the safety
cables installed at the rear of the truck.
Read and observe the following instructions be-
fore attempting any repairs!
• Do not attempt to work in deck area until body
safety cables have been installed.
• Do not step on or use any power cable as a
handhold when the engine is running.
• Do not open any electrical cabinet covers or
touch the retarding grid elements until all shut-
down procedures have been followed.
• All removal, repairs and installation of propul-
sion system electrical components, cables etc.
must be performed by an electrical maintenance
technician properly trained to service the sys-
tem.
• In the event of a propulsion system malfunction,
a qualified technician should inspect the truck
and verify the propulsion system does not have
dangerous voltage levels present before repairs
are started.
After the truck is parked in position for the repairs, the
truck must be shut down properly to ensure the safety
of those working in the areas of the deck, electrical
cabinet and retarding grids. The following procedures
will ensure the electrical system is properly discharged
before repairs are started.
N2-2
PREPARATION
1. Reduce the engine speed to idle. Place the selec-
tor switch in NEUTRAL and apply the parking
brake. Be certain the parking brake applied indi-
cator lamp in the overhead panel is illuminated.
2. Place the drive system in the REST mode by
turning the Rest switch on the instrument panel
ON. Be certain the REST warning lamp is illumi-
nated.
3. Shut down the engine using the keyswitch. If, for
some reason the engine does not shut down, use
the shutdown switch on the center console.
4. Verify the LINK VOLTAGE lights are OFF. If they
remain on longer than 5 minutes after shutdown,
notify the electrical department.
NOTE: One of the Link Voltage lights is located behind
the operator's seat on the DID panel, two others are
located on the electrical cabinet.
5. Place the GF Cutout Switch in the "cutout" posi-
tion.
6. Verify the steering accumulators have bled down
by attempting to steer.
7. Bleed down the brake accumulators using the
manual bleed valves on the brake manifold.
8. Open the battery disconnect switches.
Removal
NOTE: The following procedure describes removal of
the cab as a complete module with the hydraulic brake
cabinet attached. All hoses and wire harnesses should
be marked prior to removal for identification to ensure
correct reinstallation:
1. Disconnect hydraulic hoses routed to frame from
fittings at rear of cab under brake cabinet (3,
Figure 2-2). (It is not necessary to disconnect
hoses attached to, and routed under the cab.)
Cap all lines to prevent contamination.
2. Disconnect wire harnesses (4) at connectors lo-
cated under hydraulic cabinet.
3. Remove cable and hose clamps as needed for
cab removal
Truck Cab
N02015 4/00
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Troubleshooting
