RMX SERIES
1 - 4 4
4 8 3 0 1 8 - 3 / 1 5
T e r e x S o u t h D a k o t a
R M X S e r i e s
OPERA
T
ION GUI
D
ELI
N
ES
TOP CONTROL AND OPTION SHUT OFF
When a situation requires use of lower controls to override the upper controls (such as, injured personnel in
the platform). Move the Top Control and Option Shut Off control lever to the “off” position. This will make the
upper controls inoperable. Then “lower” control can be used to lower the operator to the ground, proved the
hydraulic system is intact. The Control Selector function as an emergency stop by taking oil flow away from
the upper controls.
If the operator is unable to operate the Aerial Device, determine if any damage has occurred to make the
Aerial Device inoperable. If the situation allows safe operation from the lower controls, override the upper
controls and carefully lower the platform the to the ground. If the Aerial Device will not operate due to the
damage incurred, consider one of the other auxiliary operating procedures presented in the section to solve
the problem.
MANUAL ROTATION
If all the hydraulic power sources become inoperable, the Aerial Device rotation system can be actuated
manually. Use a 7/8 in. hex socket, an extension, and a ratchet to rotate the input shaft on the gearbox.
Actuating the lower rotation control will reduce the effort required for the rotation.
AUXILIARY LET DOWN POWER (OPTIONAL)
The auxiliary let down power system provides power from a DC motor-pump for operation of the Aerial
Device in case of a prime power source failure. Controls for auxiliary let down power may be located at the
platform, pedestal (optional), and outrigger (optional).
At the platform, the auxiliary let down power is operated by an air cylinder located with the upper controls. To
activate this system, push and hold the air cylinder's plunger knob (labeled “Auxiliary Power”) then operate
the controls. The pump will engage after a 10 seconds delay. To turn “off” the power, release the air
cylinder's plunger knob. The auxiliary let down power system should not be continuously operated longer
than 30 seconds. Continuous use will drain the battery and damage (overheat) the motor.
At the pedestal and the outrigger controls (if equipped), the auxiliary let down power is operated by a push
button switch. To activate this system, push and hold the switch, the pump will engage after a 10 seconds
delay. To turn “off” the power, release the switch. The auxiliary let down power system should not be
continuously operated any longer than 30 seconds. Continuous use will drain the battery and damage
(overheat) the motor.
Do not use the let down pump as an auxiliary pump. Use the let down pump only to lower the booms and/or
raise the outriggers when either the main pump or engine malfunctions. Using the pump to raise the booms
may cause damage to the let down pump motor.
When the Aerial Device is equipped with engine two-speed throttle and auxiliary let down power, the same
control is used for both. When the engine is running, the engine two-speed throttle operates. When the
engine is off, the auxiliary let down power operates.
