McHale Fusion 2 hydraulic systems overview section
12-13
McHale Fusion 2 round baler wrapper technical service manual
Issue 1: 0208
12.7.4: Accumulator test.
There are two accumulators on the machine.
1. The chamber density valve: This holds the chamber shut as the crop forces
against in to form a bale. The pressure on the density clock should increase
gradually as the bale is nearly full. If there is a sudden rise the accumulator
may not be working.
2. The knife valve: this accumulator is to protect the knives while chopping. If
there is a problem with the knives the accumulator may be faulty.
To test either accumulator:
Warning! Ensure the pressure in the relative clock on the front of the ma-
chine is at O bar.
1. Remove the accumulator
2. Look into the end of it. If there is a green plastic seal showing (A) and
cannot be pushed in, it can be assumed that it is ok.
3. If this cannot be seen or can be moved the accumulator should be replaced.
Chamber density valve
accumulator.
A
Knife valve
accumulator.
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