4-12. UNIT TROUBLESHOOTING (continued).
MAIN FRAME WORKLIGHT DOES NOT OPERATE (MODEL A ONLY) (continued).
(1) Remove eight screws and side panel
from heater compartment.
and access panel from heater
Electrical power must be shut off
be checked. Failure to comply
with this caution may result in
damage to test equipment or elec-
(3) Disconnect supply harness
connector from cab control box.
A reading of infinity indicates an
(5) Connect multimeter leads to each
end of wire, and check multimeter for
worklight switch (terminal with two
wires) and the supply harness
connector, position H.
Any reading besides infinity indi-
cates a grounded wire.
end of wire and connect to chassis