22
Repairs, maintenance and settings by technicians
22.19 Venting working hydraulics for "Comfort 1.0" version
346
BiG Pack 1270
Original Operating Instructions 150000747_02_en
22.19.1
Venting control block with unscrewed system screw
To ensure the system is pressureless, set the double-acting control unit (
,
) to the float position.
Shut down and safeguard the machine,
.
Unscrew the system screw (1) as far as the stop.
Remove the plastic cap from the valve (K17).
WARNING! Increased risk of injury!
There is an increased risk of injury when the tractor
engine is running. Thus, secure the tractor against rolling away and never turn on the PTO
shaft.
Start the tractor.
In order to supply the hydraulic system with pressure, set the control unit (
) to
pressure.
Using an allen key (2 mm), loosen the inner hexagon socket-head screw (2) by one turn.
Collect escaping hydraulic oil in a suitable container and dispose of properly.
Without “starter aid” version:
Actuate a function (e. g. bale ejector) several times until the
oil flows out without bubbles.
For the “starter aid” version:
Activate the starter aid via the terminal repeatedly until the
escaping hydraulic oil runs out bubble-free.
When the escaping hydraulic oil runs out bubble-free, tighten the hexagon socket-head
screw (2).
22.19.2
Venting control block when the system screw is screwed in
To ensure the system is pressureless, set the double-acting control unit (
,
) to the float position.
Shut down and safeguard the machine,
.
Screw in the system screw (1) as far as the stop.
WARNING! Increased risk of injury!
There is an increased risk of injury when the tractor
engine is running. Thus, secure the tractor against rolling away and never turn on the PTO
shaft.
Start the tractor.
In order to supply the hydraulic system with pressure, set the control unit (
) to
pressure.
Using an allen key (2 mm), loosen the inner hexagon socket-head screw (2) by one turn.
Collect escaping hydraulic oil in a suitable container and dispose of properly.