Main Relief Valve; Work Port Relief - Toro Dingo TX 413 Service Manual

Main Relief Valve

Pressure relief is designed to prevent internal
fluid pressure from rising above a pre-determined
maximum pressure (Fig. 399).
Figure 399
The relief valve is used to adjust to the specified
system pressure (2650 psi or 182.71 bar) by
increasing or decreasing the load on the spring
against the disc. Loosen the lock nut turn screw
inward to increase the pressure or outward to
decrease the pressure (Fig. 400).
A
B
Figure 400
A. Bonnet
B. Disc
C. Spring
TX 413 Service Manual
DSC-1438
D
C
F E
DSC-1439
D. Body
E. Set screw
F. Set screw lock nut
HYDRAULIC LIFT ASSEMBLY

Work Port Relief

The work relief ports relieve the fluid spikes when the
Lift and Tilt Cylinders are being actuated (Fig 401 and
Fig. 402). These ports are non-adjustable. Port relief
setting is 2030 psi (140 bar).
E
A. Seat
B. Relief
C. Spring
Rev. 000
Figure 401 DSC-1440
A
B
C
D
Figure 402 DSC-1442
D. Plug
E. O-ring
E
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