Chapter 12. Troubleshooting; Troubleshooting Chart - Snorkel ATB 50 Operator's Manual

The chart below lists situations where machine operation may be interrupted. If the problem cannot be
corrected with the action listed, stow the machine and remove it from service. Repairs must be made
by qualified maintenance personnel.

Troubleshooting Chart

Problem
Engine will not start
from the ground control
box.
Engine will not start from
the platform control box.
ATB 42/50 – 0161987
Cause
Switches are set wrong.
(Engine will not crank).
Main circuit breaker, in
ground control box, has
tripped. (Engine will not
crank.)
Out of fuel. (Gasoline or
diesel engine cranks but
will not start).
LPG (Option)
Dual Fuel switch on the
platform control box is set
wrong. (Engine cranks but
will not start).
Stepping on platform foot
switch. (Engine will not
crank).

Chapter 12. Troubleshooting

Remedy
Set Battery switch to ON.
At the ground control box:
Set the Master Key Switch to ON.
Pull Emergency Stop switch (out) ON.
Set Platform/Ground Selector switch to
GROUND.
Set Master Key Switch to ON for 5
seconds, then turn Master Key Switch
to START.
Wait three minutes, then try to start the
engine. If it will not start, refer the problem
to a qualified service technician.
Add fuel to tank, then alternately crank
engine for 20 seconds and let starter
motor cool for 60 seconds (20 on / 60 off).
Set Dual Fuel switch in platform control
box to GAS or LPG.
Check the fuel gauge, on top of the tank,
to see if there is fuel in tank.
For LPG operation: Check to see that fuel
valve, on top of LPG tank, is open.
Alternately crank engine for 20 seconds,
then let starter motor cool for 60 seconds.
Be sure you are not stepping on the
platform foot switch, or that the foot switch
is not "blocked" in any way, while you are
trying to start the engine
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