Snorkel TB120 2000 - Manual (Page 80)

11. TROUBLESHOOTING
11 - 2 P/N 0191482
TB 120 OPERATOR’S TROUBLESHOOTING CHART (cont.)
PROBLEM CAUSE REMEDY
Engine will not start from the
platform-control box.
(Continued) 3. The MAIN CIRCUIT
BREAKER, on the platform-
control box, and/or the MAIN
SYSTEM circuit breaker, on
the ground-control box, has
tripped. (Engine will not
crank.) Push the circuit breaker button(s) in. If the
button pops out again, refer the problem to a
qualified service technician.
4. Out of fuel. (Gasoline or
diesel engine cranks but will
not start.) Add fuel to tank then alternately crank engine
for 20 seconds and let starter motor cool for
60 seconds.
5. LPG OPTION.
FUEL switch on the ground-
control box is set wrong.
(Engine cranks but will not
start.)
A. Set FUEL switch (ground-control box) to
L.P.-GAS or GASOLINE.
B. Check the fuel gauge, on top of the tank, to
see if there is fuel in tank.
C. For L.P.-GAS only: Check to see that fuel
valve, on top L.P. tank, is open.
D. Alternately crank engine for 20 seconds
then let starter motor cool for 60 seconds.
Engine starts from the
platform-control box but no
other functions work. AC GENERATOR option only:
The MACHINE/GENERATOR
switch is set to
GENERATOR. Set the MACHINE/GENERATOR switch to
MACHINE.
Cannot raise or extend the
main boom. 1. Rear axles not extended. Extend rear axles.
2. Pin lock not installed. Install pin lock.
Jerky platform movement
during extension. Loose cables. Report problem to a trained & qualified service
technician.
Cannot attain maximum
speed (3 mph, 4.8 km/hr). 1. Booms are not completely
down and completely
retracted. Completely lower & completely retract the
booms.
2. HIGH RANGE SPEED
SELECTOR VALVE is down. Pull the HIGH RANGE SPEED SELECTOR
VALVE up.
3. DRIVE RANGE set to LO. Set DRIVE RANGE to HI.
Tilt alarm does not work. Booms are completely down
and completely retracted. (Tilt
alarm is not designed to work
under these conditions as a
convenience to personnel
loading and unloading TB 120
onto/from transport vehicle.) Extend and raise the main-boom a little above
horizontal.
Boom raises but will not stay
elevated. Manual bleed-down valve is
open. Close the manual bleed-down valve.
Front wheels do not turn
during STEER RIGHT or
STEER LEFT. 1. Drive controller must be in
DRIVE FORWARD or DRIVE
REVERSE for steer wheels to
turn. Push drive controller slightly forward or
backward when using STEER RIGHT or
STEER LEFT.
2. TOW OPTION machines
only: The STEERING FLOAT
VALVE is open. Close the STEERING FLOAT VALVE.