New Holland TC21D, Руководство оператора

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SECTION 2 - OPERATION
2-19
SINGLE-LEVER POSITION ADJUSTMENTS
LINKAGE ADJUSTMENTS
The length of the position control rod is critical and
careful adjustment must be observed for proper
operation. If the control rod is adjusted too short, the
control valve spool will remain in the raised position
when the lift arms have reached their maximum
height and the system relief valve will blow. If the
control rod is too long, the control valve spool will
return to neutral before the lift arms reach their full
height.
The position control rod should be adjusted any time
the link is disconnected for service to the hydraulic
system, or any time the relief valve operation is
noticed while the lift arms are at the full raise position.
ADJUSTMENT PROCEDURE
1. Loosen the locknut, 1, on the position control rod,
2, and remove the rod from the lift arm, 3.
2. Set the control lever, 4, to the highest position.
3. Start the engine. The lift arms should raise and
the relief valve should operate.
4. Move the control lever forward until the relief
valve stops operating.
5. Adjust the length of the position control rod to
align the rod with the hole in the lift arms. Then
extend the rod one additional complete turn.
Install the cotter pin and tighten the nuts.
6. Check the operation. The relief valve should not
operate with the lift arms fully raised.
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NOT FOR REPRODUCTION