
Chapter 11 – Emergency Operation
60
S3215L/S3215E/S3219E/S3220E/S3226E/S4726E/S4732E – 1500834
Valves with Brake Release Valve on Side of Valve
1. Chock the wheels to prevent uncontrolled motion of
the aerial platform and turn the battery disconnect
switch off.
2. Unlatch and swing out the control valve tray on the
right side of the machine. The brake release valve
and free-wheeling valve are located on the side of
the hydraulic manifold. The brake release pump is
on the top of the valve (refer to Figure 11.3).
Figure 11.3 – Hydraulic Tray
3. Turn and depress the brake release valve to the fully
open position.
4. Turn the free-wheeling valve counterclockwise to the
fully open position.
5. Push and release the brake release pump knob until
it can no longer be pumped.
6. Remove the wheel chocks.
7. Do not exceed 2 mph (3.2 km/h) when towing.
Warning
The aerial platform is free to move when the brakes
and free-wheeling valve are disabled. Death or serious
injury could result. Close the free-wheeling valve and
reset the brakes before operating the aerial platform.
8. Close the free-wheeling valve.
9. Drive the aerial platform forward or reverse and then
stop to reset the parking brakes. The brake release
valve can be heard when it resets, as the machine
is driven.
10. Verify that the drive system and brakes operate
properly before operating the aerial platform.
Valves with Brake Release Valve on Top of Valve
1. Chock the wheels to prevent uncontrolled motion of
the aerial platform and turn the battery disconnect
switch off.
2. Unlatch and swing out the control valve tray on the
right side of the machine. The brake release valve
and brake release pump are located on the top of the
hydraulic manifold. The free-wheeling valve is on the
side of the valve (refer to Figure 11.4).
Figure 11.4 – Hydraulic Tray
3. Turn the brake release valve clockwise to the fully
closed position. Turn the free-wheeling valve counter-
clockwise to the fully open position. Push and release
the brake release pump knob several times, until it
becomes hard to push, to release the brakes.
4. Remove the wheel chocks.
5. Do not exceed 2 mph (3.2 km/h) when towing.
Warning
The aerial platform is free to move when the brakes
and free-wheeling valve are disabled. Death or serious
injury could result. Close the free-wheeling valve and
reset the brakes before operating the aerial platform.
6. Turn the brake release valve counterclockwise to
the fully open position. Turn the free-wheeling valve
clockwise to the fully closed position.
7. Drive the aerial platform forward or reverse and then
stop to reset the parking brakes.
8. Verify that the drive system and brakes operate
properly before operating the aerial platform.
Free-Wheeling Valve
Brake Release Valve
Brake Release Pump
Free-Wheeling Valve
Brake Release Valve
Brake Release Pump
Содержание S3215E
Страница 6: ......
Страница 24: ...Chapter 3 Safety 16 S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...
Страница 30: ...Chapter 4 Safety Devices 22 S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...
Страница 34: ...Chapter 6 Batteries 26 S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...
Страница 52: ...Chapter 8 Prestart Inspection 44 S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...
Страница 70: ...Chapter 11 Emergency Operation 62 S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...
Страница 74: ...Appendix A Glossary S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...
Страница 76: ...S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834 Appendix B EC Declaration of Conformity...
Страница 78: ...Appendix C Inspection Checklists S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...
Страница 84: ...Appendix C Inspection Checklists S3215L S3215E S3219E S3220E S3226E S4726E S4732E 1500834...