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Control Functions
2.2-8 Emergency Lowering System
This emergency lowering system allows platform
lowering in the event of an emergency or an electrical
system failure. Refer to
Section 2.6
lowering procedures. The system contains the following
controls:
Models 71xx & 88xx
1
Figure 2-5. Emergency Lowering System
1.
Holding Valve Manual Override Knob - Located
on the holding valve at the bottom of each lift
cylinder.
2.
Emergency Lowering Valve - Located at the rear
of the hydraulic/electrical compartment.
3.
Emergency Lowering Access Rod - Located
either at the base, on top of scissor guards, or on
top of fuel cabinet.
Model 9250
This emergency lowering system is located on the
hydraulic tank and is accessed through a hole in the
hydraulic/electrical compartment door.
1
Figure 2-6. Emergency Lowering System
1.
Emergency Lowering Pushbutton
2.
Emergency Lowering Valve
Page 14
It is the responsibility of the operator to read, completely understand and follow all instructions and warnings
for the emergency
2
3
2
contained in this operating manual and on the aerial platform.
Section 2 - Familiarization
2.2-9 Engine Control Console
This control console is attached to the engine tray. It
contains the following controls:
2
Figure 2-7. Engine Control Console - Diesel Engine
1.
Engine Off/On/Start Switch - This is a three-
position switch. When in " " on position, it
energizes engine circuit. When in "
position, it starts the engine (switch will return
to on position when released). When in "
position, it turns engine off.
2.
Glow Plug Switch - This "
energizes the glow plugs to aid in starting a cold
diesel engine. Glow plugs are only active while
switch is activated.
3.
Glow Plug Indicator Light - This red lamp
illuminates until the glow plugs have completed
the timed heating cycle. When the lamp goes out,
the engine is ready to be started.
1
3
" start
" off
" toggle switch
Mid Size & Full Size RTs
Engine Powered
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