Rear Traction Manifold Service - Toro Groundsmaster 4500-D Series Service Manual

Rear Traction Manifold Service

34 N·m
(25 ft−lb)
27 N·m
(20 ft−lb)
34 N·m
(25 ft−lb)
g275437
1. Rear traction manifold body
2. Relief valve (port RV)
3. Pressure reducing valve (port PR)
Hydraulic System: Service and Repairs
3
4
1
5
4. #4 zero leak plug with O−ring
5. #6 zero leak plug with O−ring
6. Check valve (port CV)
Note: The ports on the rear traction manifold are marked for easy identification
of components. Example: P2 is a piston pump connection port and RV is the
location for the relief valve
the hydraulic lines and cartridge valves at each port).
Note: The rear traction manifold uses several zero leak plugs. These plugs have
a tapered sealing surface on the plug head that is designed to resist vibration
induced plug loosening. The zero leak plugs also have an O−ring as a secondary
seal. If zero leak plug removal is necessary, lightly rap the plug head using a
punch and hammer before using an allen wrench to remove the plug: the impact
will allow plug removal with less chance of damage to the socket head of the plug.
For rear traction manifold cartridge valve service procedures, see
Manifold Cartridge Valve Service (page
traction manifold cartridge valve and plug installation torque.
A flow control orifice (item 7) is located beneath the hydraulic fitting
in rear traction manifold port T/OR1. If the orifice is removed from
this manifold port, make sure to label its position for assembly
purposes. When installing the orifice in the manifold, make sure that
the orifice is properly tightened in the port.
2
Figure 107
(seeAppendix A (page A–1)
5–111). Refer to
IMPORTANT
Page 5–110
67 N·m
(50 ft−lb)
7
156 N·m
(115 ft−lb)
6
7. Orifice (0.050) (port OR1)
to identify the function of
Control
Figure 107 for rear
Groundsmaster ®
19245SL Rev A
4500-D/4700-D