5-2 Lower Mechanism: Travel Drive Unit [6] Pipe installation 1. Piping and the motor rotation direction Before performing piping, make sure the motor rotation direction determined by the combination of the inflow port and the outflow port for hydraulic oil. Table 15 and Figure 26 show the motor rotation direction determined by the combination of the inflow port and the outflow port for hydraulic oil. Table 15. Motor Rotation Direction Determined by the Combination of the Inflow Port and the Outflow Port for Hydraulic Oil Hydraulic Oil Inflow Port P1 port P2 port
Important
Motor Rotation Direction (Rotation direction viewed from J) C direction (clockwise direction) A direction (anticlockwise direction)
Hydraulic Oil Outflow Port P2 port P1 port
If the pipes are incorrectly installed, the motor will rotate in the unintended, opposite direction, creating a highly dangerous situation. Make sure to check the pipe port positions and the motor rotation direction before carrying out piping.
C direction (clockwise direction) rotation
A direction (anticlockwise direction) rotation
Figure 26. Motor rotation direction determined by the combination of the inflow port and the outflow port for hydraulic oil
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