McHale Fusion 2 - Identifying Tractor Hydraulic System Type; Hydraulic Spool Valve Setup

McHale Fusion 2 hydraulic systems overview section
12-2
McHale Fusion 2 round baler wrapper technical service manual
Issue 1: 0208
2. Closed Centre
Set as Closed/Load Sensing
(as shown in section 12.3)
YES
12.2: What hydraulic system does the tractor use?
1. Open Centre
Set as Open Centre
(default factory setting,
as shown in section 12.3)
3. Load-Sensing
Does the tractor have a ‘Power
Beyond’& ‘Sensing Line’ con-
nection fitted?
NO
Set as Closed / Load
Sensing
(as shown in section
12.3)
SET-UP (C)
(1)Plug Wrapper Feed into Power Beyond Output.
(2)Plug Wrapper Return into Free-Flow Return.
(3)Plug Sensing-Line hose into ‘Power Beyond’ connection
on tractor.
Contact your tractor dealer
get the ‘Power Beyond ‘
option fitted.
SET-UP (A)
(1)Plug Wrapper Feed
into auxiliary spool
output ensuring it can
supply an oil flow of at
least 45 litres/min. @
180 bar.
(2)Plug Wrapper Return
into Free-Flow Return.
SET-UP (B)
(1)Plug Wrapper Feed into
auxiliary spool output
ensuring it can supply an oil
flow of at least 45 litres/min.
@ 180 bar.
(2)Plug Wrapper Return into
Free-Flow Return.
12.3: Hydraulic spool valve setup
Procedure to select open/closed centre valve configuration.
1. Using a 17 mm spanner, loosen locknut (1) as shown below.
2. With a 4 mm ‘Allen’ Key, tighten or unscrew the bolt according to the following
guidelines:
(a) Open Centre (Factory Default): Screw in fully. (Do not over-tighten)
Tightening torque = 6.0 Nm
(b) Closed Centre/Load Sensing: Unscrew 5 full turns from the fully in
position.
3. Re-tighten 17 mm locknut.
Tightening Torque = 20 Nm
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