Return Filter; Closed Centre Variable Displacement Pump; Twin Hydraulic Gear Pump - 32Cc & 22Cc; Forward-Mounted Hydraulic Manifold - Goldacres G6 Crop Cruiser 2 Series Operator's Manual

(A)
(B)
Filter Indicator (A) & Return Filter (B).

Return Filter

The Return Filter is fitted to the top of the
hydraulic reservoir tank in front of the cabin.
Filters returned oil to the reservoir.
This filter should be replaced after the first 50
hours of use and there after every 500 hours.
A red indicator is located on the top of the
filter. If the indicator pops out, the filter must
be replaced because it is blocked and causing
back pressure in the system.
The filter indicator should be checked once
the oil has reached operating temperature
as cold oil can cause a false reading on the
indicator.
Refer to the specification provided in the
'Maintenance Schedules' of this chapter.
Refer to the 'Maintenance Schedules' this chapter for
information on hydraulic maintenance, lubricants and
parts.
GA8701177 REV 2 APRIL 2022
Closed Centre Variable Displacement Pump driven by a
multi-rib belt (with belt tensioner).
Closed Centre Variable
Displacement Pump
The Closed Centre Variable Displacement
Pump With Load Sensing (located at the front
of the engine) powers the:
• Boom functions (boom lift, boom tilt,
boom fold & boom rest
• High flow fill pump and
• Steering system.
The pump is driven by a multi-rib belt from the
engine crankshaft.
The belt drive uses a spring tensioner which
eliminates the need for adjustments.
The tensioner can be released by using a 1/2"
drive tool such as a breaker bar.
The pump is 45cc which delivers relatively
high flow at low engine RPM. Oil flow is on
demand.
The multi-rib belt incorporates a red wear
indicator.
Lubrication & Maintenance – Service
(A)
(B)
Twin hydraulic gear pumps - 22cc (A) & 32cc (B).
Twin Hydraulic Gear Pump -
32cc & 22cc
The Twin Hydraulic Gear Pumps are located
on the left hand side of the engine.
Both are positive displacement pumps
powered by the engine PTO drive.
The 22cc pump drives the service brakes,
park brake and engine fan.
The 32cc pump drives the spray pump.
Oil pressure filters clean oil in both circuits.
(B)
(B)
(A)
Forward-Mounted Hydraulic Manifold with Pressure Filter
(A) & Service Brake Accumulators (B).
Forward-Mounted Hydraulic
Manifold
The Forward-Mounted Hydraulic Manifold
(located under chassis on the RHS behind the
engine [see illustration below] is a dedicated
hydraulic manifold controlling the park brake,
service brakes and engine cooling fan.
Hydraulic accumulators allow full brake control
in the event of engine failure.
Use of a pressure filter & proper maintenance
provides for a clean hydraulic circuit.
Variable hydraulic control of engine cooling &
radiator fan minimizes noise, fuel usage and
power loss.
Refer to the specification provided in the 'Maintenance
Schedules' of this chapter.
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