S2770RT IS – 0102094
9
Chapter 4 – Safety Devices
This aerial work platform is manufactured with safety
devices, placards, and decals to reduce the likelihood
of an accident.
y
For the safety of all personnel, do not disable, modify,
or ignore any safety device.
y
Safety devices are included in the daily prestart
inspection.
A
Warning
The potential for an accident increases when safety
devices do not function properly. Death or serious
injury could result from such accidents. Do not alter,
disable, or override any safety device.
If any safety devices are defective, remove the aerial
platform from service until qualified maintenance person
-
nel can make repairs.
Emergency Stop Controls
There is an emergency stop control at the lower and
upper controls.
At the lower controls, the emergency stop is a two-posi-
tion red push button (refer to Figure 4.1).
Figure 4.1 – Lower Controls
Note
The lower controls override the upper controls. If the up-
per control emergency stop button is engaged, the lower
controls can still be used to operate the aerial platform.
y
Push the emergency stop button inward to disconnect
power to all control circuits.
y
Pull the button outward to restore power.
At the upper controls, the emergency stop is a two-posi-
tion red push button (refer to Figure 4.2).
Figure 4.2 – Upper Controls
y
Push the emergency stop button inward to disconnect
power to all the control circuits.
y
Pull the button outward to restore power.
Manual Emergency Lowering Pump
The manual emergency lowering pump may be used to
lower the platform and to release the brakes if the engine
will not start. The pump (refer to Figure 4.3) is behind the
cowling door on the right side of the chassis.
Figure 4.3 – Manual Emergency Lowering Pump
After selecting either the scissor lower or brake release
valve, the hand pump may be used for emergency op-
eration.
Ground Operation Button
The ground operation button (refer to Figure 4.1) prevents
platform movement if a control button on the lower control
panel is accidentally pressed.
Press and hold the button to operate the machine from
the lower controls.
Pump
Main Control
Valve Assembly
Brake
Release Knob
Scissor
Lower Knob
Emergency Stop Button
Ground Operation Button
Emergency
Stop Button
Summary of Contents for S2770RT
Page 1: ...November 2017 Part Number 0102094 MANUAL OPERATOR S Model S2770RT IS Intrinsically Safe...
Page 16: ...Chapter 4 Safety Devices 12 S2770RT IS 0102094...
Page 18: ...Chapter 5 Gauges and Displays 14 S2770RT IS 0102094...
Page 22: ...Chapter 6 Controls 18 S2770RT IS 0102094...
Page 32: ...Chapter 7 Prestart Inspection 28 S2770RT IS 0102094...
Page 34: ...Chapter 7 Prestart Inspection 30 S2770RT IS 0102094...
Page 44: ...Chapter 9 Stowing and Transporting 40 S2770RT IS 0102094...
Page 46: ...Chapter 10 Emergency Operation 42 S2770RT IS 0102094...
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