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P a g e
5.2.3
Shear Pin (SP)
Shear pins only need adjusting once the shear pin has sheared
off. Simply remove the retention clip, correct the angle of the
leg and advance the shear pin through legs oblong hole to the
next stage, re-insert retention clip.
Always check to ensure the retention
bolts acting as the pivot and stopper,
are in good condition and do not
show signs of wear. Continued
pressure /movement, after the shear
pin has sheared can cause damage.
5.2.4
Auto Reset Legs (AR)
To adjust the AR, raise the machine so the legs are clear of the ground.
To adjust the pressure, release the lock ring and rotate the knob in the desired
direction (Clockwise to Increase pressure, Anti-Clockwise to Reduce pressure).
Secure lock ring once completed.
Lift and lower the legs to introduce the new pressure setting. Keep pumping
down for 5 seconds after last leg stops moving. Observe the new pressure
displayed on the gauge (Range 80
–
150 bar). It can be adjusted up to a
maximum of 120 bar, exceeding this pressure may result in serious damage to
the machine. The higher the pressure in the system, the greater the resistance
against the legs tripping, but increasing the risk of damage to the machine due
to underground obstacles.
Flow Control
Leave wide Open
Pressure
Adjustment
Knob
Retention
Clip
