McHale W2020 - Lift Arm Roller Adjustment

McHale W2020 Round Bale Wrapper
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9.10.3 To check wrapping arm stopping performance
In MAN mode, run wrapper at full speed (i.e. press the rotation button two times) with
two new film rolls fitted on the dispenser. Upon releasing the rotation button, the arm
rotation should stop immediately. If there is any run-on, then do not operate the
machine and contact your McHale dealer for further assistance.
9.11 Lift arm roller adjustment
This slack adjustment should be carried out if excessive movement is found at the
motor end of the lift arm rollers.
1. The two large 20 mm bolts at the bottom of
each roller are used to carry out this
adjustment.
2. Use a size 30 spanner to hold the outside
half nut.
3. Now use another size 30 spanner to
loosen the main nyloc nut by
approximately half a revolution.
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2