26/68
About this product
Bosch Rexroth AG
, A4VG Series 32, RE 92003-01-B/12.2015
5.3.3 Bypass function size 125 to 180
1
1
1
Fig. 5: Activating the bypass function size 125 to 180
To activate the bypass function:
1.
Switch off the combustion engine.
2.
Loosen the screw (
1
) by turning counter-clockwise with a hexagon head
screw (WAF 36).
Loosening the high-pressure relief valve means an optimal seal is no longer
guaranteed. If hydraulic fluid leaks on the high-pressure relief valve, remove it
immediately and clean the valve.
The maximum towing speed is dependent on the gear ratio in the vehicle and must
be calculated by the vehicle manufacturer. The corresponding flow of
q
V
= 100 l/min
may not be exceeded.
CAUTIOn!
Impermissible heat generation and insufficient lubrication.
Risk of burning or property damage. High towing speeds and long towing distances
result in impermissible heat generation and insufficient lubrication. This overheats
and damages the axial piston unit.
▶
Wear heat-resistant protective clothing, e.g., gloves.
▶
Only tow the vehicle out of the immediate danger zone.
The vehicle may only be towed out of the immediate danger zone.
nOTICE!
Draining the hydraulic circuit.
Risk of damage! While towing with the bypass function activated, the closed
hydraulic circuit drains itself. This can result in unintended functions when restarting
the travel drive.
▶
Start the travel drive only after completely filling and air bleeding the hydraulic
circuit (see chapter 8.1 “Initial commissioning” on page 48).
To deactivate the bypass function:
1.
Immediately following towing, switch off the bypass function.
2.
Restore the function of the high-pressure relief valve. Tighten the screw (
1
) with a
hexagon head screw (WAF 36) in a clockwise rotation with a torque of 200
±10
Nm.
Activating the
bypass function
Towing speed
Towing distance
Deactivating the
bypass function
