Maintenance Instructions
80
4.11.1 Control Handle and Feedback Lever Adjustment
Install the lifter on the tractor, connect the hoses and fill the
hydraulic oil reservoir.
Mount the suspension bar and hang a load of approximately
200
～
300kg at the lower suspension point. Place the control
handle in the lowest position.
Start the engine and set the accelerograph in the
neutral position. Fig.4-30 Hydraulic Suspension System
Slowly move the control handle up and the lift arm
and load will rise. When the handle reaches its peak, the
angle should be 53° between the lift arm; the level is normal.
If the angle between the lift arm and the level is less than
53°, it should be adjusted.
When
the angle between the lift arm and the level is
less than 53°, the bolt (1) on the feedback lever can be used
to increase the length of the feedback lever until it conforms Fig 4-31 Feedback Lever Adjustment
to the requirements. 1. Adjust the Bolt 2. Screw Down the Nut
Tighten the nut (2) after adjustment.
4.11.2 Hydraulic System Use (only for a double acting oil cylinder type system)
When the control handle is pushed from the N position to the front
position, the suspension system will start to rise. When reaching the
deadline position, the control handle will move back automatically
(i.e. back to the N position).
When the control handle is pushed from the N position to the reverse
direction (at such time, the control lever is not in the rear position,
the suspension system will descend. Once you release the control
handle, it will go back to the N position, the descent will stop.
When the control handle is pushed from the N position to the
lowest position, the suspension system stays in the ―floating‖ state
after dropping down to the final position.
Figure 4-32 Hydraulic System Use
float
neutral
lower
lift
