Cutting Deck Control Manifold Service - Toro Groundsmaster 5900 Series Service Manual

Cutting Deck Control Manifold Service

27 N·m
(20 ft−lb)
68 N·m
(50 ft−lb)
34 N·m
(25 ft−lb)
10
11
12
27 N·m
(20 ft−lb)
68 N·m
(50 ft−lb)
g288145
1. Manifold body
2. Nut
3. Solenoid coil
4. Proportional relief valve (PRV)
Hydraulic System: Service and Repairs
9
8
7
6
5
1
5. #8 zero−leak plug with O−ring
6. Logic element (LC1 & LC2)
7. Relief valve (RV)
8. Orifice 0.025 in. (OR2)
The ports on the cutting deck control manifolds are marked for easy identification
of components. Example: PRV is the proportional relief valve and M2 is the
return flow from the deck motor. See
identify the function of the hydraulic lines and cartridge valves at each port.
Although not recommended in most situations, relief valve (RV) and sequence
valve (SQ) are adjustable (see
Figure 114
10.
11.
12.
A Hydraulic Schematic (page A–3)
Adjust Manifold Relief Valves (page
Page 5–128
7 N·m
(5 ft−lb)
2
3
27 N·m
(20 ft−lb)
4
9. Sequence valve (SQ)
#6 zero−leak plug with O−ring
Orifice 0.063 in. (OR1) − RH and
LH control manifolds only
#4 zero−leak plug with O−ring −
Front control manifold only
5–72)).
Groundsmaster
16227SL Rev B
to
® 5900 & 5910