Heiniger TPW Aussie Xpress, Operator'S Manual

Page: 15 / 25

MA005 TPW Woolpress Operator Manual 2019-06-06
Rev:05
15
12.8 Control valve neutral adjustment
Due to normal running in of new components it is sometimes necessary to adjust the
control valve neutral rod, to ensure that the control valve will automatically return to
neutral at the completion of its cycle.
Adjustment
Should the valve not drop into neutral, tap the control valve neutral rod to the right or left
until correct action is achieved. Several cycles of the press may be required for this setting.
If the adjustment is moved too far to the left (rear view), or too close to the pivot bolt, the
valve may push too far and go over 'centre' and cause the ram to re-cycle automatically.
This adjustment may require setting from time to time as the press settles in.
Control valve neutral adjustment illustration
12.9 Baling pin adjustment
When the guide rods are at the maximum down position, the pins are correctly set if there
is approximately 1mm of backlash.
To set the Baling pins :
Note: If the left hand bank of pins has less backlash than the right hand it is advisable to
back off (wind up) the adjustment bolt on the top of the left hand guide rod before
proceeding.
1. Send the platen on the down stroke and allow the pins to go in. Carefully watch for
the point when the control valve lever is about to be actuated into the up position and
stop the lever in the "natural" neutral position, with your hand
held above the control
lever.
2. Check the backlash between the bellcranks and the bin, and if incorrect, adjust the
return bolt on top of the right hand guide rod carefully ½ a turn at a time, (up to
decrease clearance or down to increase clearance).
3. Repeat the cycle until the correct backlash is achieved.
4. Tighten locknut securely.
5. After setting right bank of pins, repeat procedure for left hand bank of pins using
adjustment bolt on left hand guide rod. Ensure the hexagonal sides of the bolt are
kept parallel with the side of the guide rod when adjustment is complete.
Note : Take care to adjust small amounts then cycle the press each time to prevent over-
adjustment and possible damage to guide rods.
Control valve neutral rod
L/ H
R/ H
Rocker arm
Rear ejection handle
View from rear of press
Pinning adjustment
Return bolt
1mm Clearance
Bellcrank
adjustment
Pinning
Bin
Platen
Trip Lever