Toro ProPass 200 - Adjustments; Adjust Manifold Relief Valve

ProPass 200Page 6 -- 6Hydraulic Power Pack
Adjustments
Adjust Manifold Relief Valve
The hydraulic relief valve manifold includes an adjust-
able relief valve for system relief (Fig. 1). If adjustment
to this valve is necessary, follow the following proce-
dure.
NOTE: Do not remove relief valve from the hydraulic
manifold for adjustment.
Never adjust the relief valve with the hydraulic
system pressurized. Hydraulic oil may spray out
of the valve with the cap off. Personal injury may
result. Always install the cap and tighten before
pressurizing the s ystem.
WARNING
1. Locate relief valve on control manifold.
2. Loosen jam nut on relief valve to allow adjustment on
the valve.
3. 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.
4. 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.
5. Tighten jam nut on relief valve.
6. Recheck relief pressure and readjust as needed. If
adjustments to the relief valve do not change the relief
pressure, consider that the relief valve cartridge is leak-
ing or damaged.
1. Relief valve manifold
2. Relief valve
3. Gear pump
Figure 1
3
1
2
1. Relief valve cartridge
2. Jam nut
3. Adjustment socket
Figure 2
1
2
3