TOHATSU TLDI 40 Service Manual page 138

!3 Has air entered the hydraulic system?
CH
• The presence of the air in the lines is relatively easy to detect, as the PT&T unit will occasionally
generate sluggish sounds.
• Air Bleeding Procedure(oil plug must be closed during air removal procedure):
With the manual valve opened, repeat a full stroke manual tilt up and down operation five or more
times. Complete the operation by tilting up and checking the oil level.
• Be sure to close the manual valve immediately after inspection.
• When air has found its way into the core of the system:
A single air bleeding operation is not sufficient to remove air that has found its way into the center
of the system. This must be removed by repeating the air bleeding operation over a period of
several days.
Note: Paying close attention to engine position is important to prevent air from entering the system.
The figure below shows storage positions that will prevent air contamination.
(Do not stand the motor upside down.)
Motor
!4 Is the piston rod bent, warped or not operating properly?
CH
• With the manual valve opened, perform a manual tilt up and down motion to confirm the piston
moves freely.
• Conduct a visual inspection.
Motor
7-9
Motor