Toro 03781, Руководство по обслуживанию

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Reelmaster 7000- D Hydraulic System Page 5 - 141
Removal (Fig. 92)
1. Park machine on a level surface, lower cutting units,
stop engine, apply parking brake and remove key from
the ignition switch.
IMPORTANT: To prevent unexpected cutting unit
lowering, make sure that cutting units are fully low-
ered before loosening hydraulic lines from lift man-
ifold.
2. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of this chapter.
3. Unlatch and raise hood.
4. To prevent contamination of hydraulic system during
manifold removal, thoroughly clean exterior of manifold.
5. Label wire harness electrical connectors that attach
to manifold solenoid coils. Disconnect wire harness
electrical connectors from the solenoid valve coils.
WARNING
Make sure that cutting units are fully lowered be-
fore loosening hydraulic lines from lift manifold.
If cutting units are raised as hydraulic lines are
loosened, cutting units may drop unexpectedly.
6. Disconnect hydraulic lines from manifold and put
caps or plugs on open hydraulic lines and fittings. Label
disconnected hydraulic lines for proper assembly.
7. Remove hydraulic manifold from the frame.
IMPORTANT: A flow control orifice is placed be-
neath hydraulic fittings in lift manifold ports C2, C3
and C4 (Fig. 93). If a fitting is removed from the lift
junction manifold and an orifice is in the manifold
port, make sure to remove orifice and label its posi-
tion for assembly purposes. Also note location of
groove in orifice for assembly purposes.
8. If hydraulic fittings are to be removed from lift man-
ifold, mark fitting orientation to allow correct assembly.
Remove fittings from manifold and discard O- rings.
Installation (Fig. 92)
IMPORTANT: When installing orifice in manifold
port, make sure that orifice is flat in the base of the
manifold port. Manifold damage is possible if the
orifice is cocked in the cavity.
1. If fittings were removed from lift junction manifold, lu-
bricate and place new O- rings onto fittings. Install fit-
tings into manifold openings making sure that orifice is
correctly placed before threading fitting into manifold.
Tighten fittings (see Hydraulic Fitting Installation in this
chapter). Refer to Figure 93 for fitting installation torque.
2. Install hydraulic manifold to the frame.
3. Remove caps and plugs from fittings and hoses.
Properly connect hydraulic lines to manifold (see Hy-
draulic Hose and Tube Installation in this chapter).
4. Connect wire harness electrical connectors to the
solenoid valve coils.
5. Lower and secure hood.
6. Check oil level in hydraulic reservoir and add correct
oil if necessary (see traction unit Operator’s Manual).
7. Follow hydraulic system start- up procedures (see
Charge Hydraulic System in this chapter).
1. Lift manifold
2. Dust cap
3. Test fitting
4. O- ring
5. O- ring (7)
6. Straight fitting (2)
7. O- ring (3)
8. Orifice - 0.040” (C3)
9. Orifice - 0.055” (C4)
10. Straight fitting (4)
11. O- ring (4)
12. Elbow fitting
Figure 93
25 ft- lb
(34 N- m)
25 ft- lb
(34 N- m)
25 ft- lb
(34 N- m)
1
2
3
4
5
6
7
8
9
5
10
11
12
7
5
10 ft- lb
(13 N- m)
Hydraul
ic
System