Bypass Valves - Husqvarna P524 Workshop Manual

Design and Function

4.5 Bypass valves

Tools
Combination wrench
Combination wrench
The hydraulic motors must be bypassed in order for
the ride-on mower to be moved when the engine is
shut off.
The motors can be bypassed using the bypass
valve. The machine will not move if an attempt is
made to drive while the valve is open. The drive on
the axle is disengaged when one of the valves is
open.
The rear bypass valve is open if the machine can
not be driven forwards. The front bypass valve is
open if it can not be driven in reverse.
P524 has 2 valves, one bypass valve for the front
axle and one for the rear axle. The bypass valve
is opened and closed in the same way on the front
and rear axles.
1. The valve is opened by loosening the locking
nut (1) 1/4-1/2 turn counterclockwise and then
the bypass valve (2) two turns.
2. The valve is closed by tightening the valve nut
(2) 8-10 Nm.
3. Tighten the locking nut (1) 30-35 Nm.
Rear axle bypass valve
Front axle bypass valve
1
2
14 – English
Dimension
8 mm
17 mm