Toro Groundsmaster 3500 30807 Service Manual page 125

Blade Braking Relief Valve (RV) Adjustment (Traction Units No 314000001 & Up)
The blade braking relief valve (RV) on the hydraulic
manifold works in conjunction with logic cartridge valve
(LC2) to control the stopping time for the cutting deck
blades. The relief valve is adjustable. If adjustment of
the relief valve is correct, the cutting deck blades should
come to a complete stop within 7 seconds after the PTO
switch is disengaged.
If blade stopping time is incorrect, adjustment of the re-
lief valve (RV) can be performed as follows:
NOTE: Do not remove the relief valve from the hydrau-
lic manifold for adjustment.
1. Remove cap on relief valve with an allen wrench.
2. To increase pressure setting, turn the adjustment
socket on the valve in a clockwise direction. A 1/8 turn
on the socket will make a measurable change in relief
pressure.
3. To decrease pressure setting, turn the adjustment
socket on the valve in a counterclockwise direction. A
1/8 turn on the socket will make a measurable change
in relief pressure.
4. Install and tighten cap on relief valve.
5. Check blade stopping time and readjust relief valve
as needed.
Groundsmaster 3500
1
3
1. Hydraulic manifold
2. Relief valve (RV)
1. Relief valve cap
Page 5 − 67
2
Figure 41
3. Logic valve (LC2)
2
Figure 42
2. Adjustment socket
Hydraulic System
1