45
SJ6826 RT, SJ6832 RT
221587ABA
Function Tests Section 4 – Inspections Before Operation
4.3-6 Do a test of the positive air shutoff
(optional equipment)
CAUTION
Do not do this function test while the engine is on.
WARNING
Burn hazard. Do not touch hot engine components
without the correct PPE. Let the engine cool before
you do an inspection or servicing. If you do not
obey, there is a risk of death or serious injury.
1. Make sure these power connections are ON:
▪
The main power disconnect switch
▪
The emergency-stop button on the base
control console
▪
The emergency-stop button on the platform
control console
2. Make sure that the engine is off.
3. Open the engine compartment cover.
4. Lift the switch guard
1
for the positive air
shutoff on the base control console.
5. Move the positive air shut-off switch
2
to the
on position to engage the shutoff valve
4
.
6. Move the positive air shut-off switch to the off
position to disengage the shutoff valve
5
. The
light
3
continuously illuminates.
▪
Result: The shutoff valve disengages after 20
seconds.
7. Make sure the positive air shut-off switch is
put back to the off position, and that the switch
guard is down. Push the engine compartment
cover until the latch locks into position.
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1
2
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