McHale 995 L+T Square Bale Wrapper
63
11.8.1 To increase accumulator pressure
1. Remove the blanking cap on the hydraulic cylinder
2. Remove the cut & hold feed pipe (and adaptor) and fit it to the open port
3. Operate the cut and hold to prime the system. It only needs a small amount of
oil to prime it back up.
4. Remove the hydraulic pipe (and adaptor) and refit it to its original position
5. Replace the blanking cap on the priming port. Operate the cut and hold to
ensure it is opening and closing. Repeat if it is not fully primed.
Figure 11.l - Increase accumulator pressure
11.8.2 To decrease accumulator pressure
1. Remove the blanking cap on the hydraulic cylinder
2. Insert a small punch into the hydraulic cylinder port. There is a one way ball
valve in the cylinder which the punch needs to unseat to release oil. Always
cover the punch with a cloth to prevent oil contacting skin.
3. Replace the blanking cap and test the cut and hold to ensure it is opening and
closing correctly.
Figure 11.m - Decrease accumulator pressure
11.9 Chain adjustments
It is important for the efficient operation of the machine that all drive chains are kept
correctly tensioned. The following is a general guide to chain adjustment.
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