TM SERIES
1-51
TM Series Terex South Dakota, Inc. 472797 - 1/15
OPERATION GUIDELINES
ENGINE FAILURE
HYDRAULIC PUMP FAILURE
If the primary hydraulic pump fails, use the auxiliary let down power system, if equipped.
CONTROL VALVE FAILURE
A control valve malfunction could develop in either the individual control levers or the multifunction single
stick control.
If the Aerial Device motion cannot be stopped because the control valve will not return to the centered or
neutral position, activate the emergency stop mode by pushing down the emergency stop. The emergency
stop position will disable the boom controls, which will stop the Aerial Device's motion. If the engine stop/
start control is installed, shut off the engine. The engine and the Aerial Device's motion will cease. Then
manually attempt to center the spring-loaded control lever before restarting the engine. If the spring-loaded
control lever at the platform will not return to neutral, the Aerial Device can be returned to a stowed position
by overriding the upper controls from the lower controls.
After any emergency situation, it is the operator's responsibility to notify appropriate maintenance personnel
to make sure the Aerial Device is repaired and adjusted.
Identifying the problem and initiating the recommended emergency procedures will help to minimize or
possibly prevent injuries.
If the prime power source fails, the optional auxiliary let down power system can
be used for emergency operation. If the auxiliary let down power system is not
installed and the vehicle has a manual transmission, then use the engine stop/start
control (if so equipped) to crank the engine.
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