Toro 03781, Service Manual

Page: 167 / 468

Reelmaster 7000- D Hydraulic System Page 5 - 97
5. Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
6. Put a drain pan below the pump assembly. Remove
hydraulic hoses connected to piston and gear pumps.
Put plugs or caps on disconnected hydraulic hoses and
fittings to prevent contamination of the system (Fig. 56).
7. Remove gear pump from machine (see Gear Pump
Removal in this chapter).
8. Support the piston pump to prevent it from falling
while removing two (2) cap screws and washers retain-
ing pump assembly to engine adapter plate. Carefully
pull pump assembly from adapter plate and raise it out
of the machine.
9. If hydraulic fittings are to be removed from piston
pump, mark fitting orientation to allow correct assembly.
Remove fittings from pump and discard O- rings.
Installation (Fig. 54)
1. If fittings were removed from piston pump, lubricate
and place new O- rings onto fittings. Install fittings into
pump ports using marks made during the removal pro-
cess to properly orientate fittings. Tighten fittings (see
Hydraulic Fitting Installation in this chapter).
IMPORTANT: To prevent spring coupler damage,
make sure that piston pump is properly supported
and does not put side load into coupler during pump
installation.
2. Carefully lower piston pump into the machine and
position it to the engine adapter plate. Support pump to
prevent it from falling while installing two (2) cap screws
and washers securing piston pump to engine adapter
plate. Torque screws from 77 to 93 ft- lb (105 to 126
N- m) .
3. Install gear pump to piston pump (see Gear Pump
Installation in this chapter).
4. Install traction rod to control arm on piston pump with
flange head screw and lock nut (Fig. 55).
5. Connect wire harness connector to neutral switch.
6. Remove plugs and caps from disconnected hydrau-
lic hoses and fittings. Install fittings and hoses to correct
location on gear and piston pumps (see Hydraulic Hose
and Tube Installation in this chapter).
7. Install new filter and fill hydraulic reservoir with cor-
rect oil (see traction unit Operator’s Manual).
8. Prime hydraulic pumps (see Priming Hydraulic
Pumps in this chapter).
1. Piston pump
2. Neutral switch
3. Traction rod
4. Flange head screw
5. Lock nut
Figure 55
1
2
3
4
5
1. to Traction motors
(forward)
2. to Traction motors
(reverse)
3. from Charge filter
4. to Mow manifold P1
5. to Mow manifold P2
6. to Fan manifold P2
7. to Fan manifold P1
8. from Suction strainer
9. from Steering unit
10. from Rear traction
manifold T
11. to Reservoir
12. from Return filter
Figure 56
FRONT
RIGHT
1
2
3
4
5
6
7
8
9
10
11 12
9. Charge hydraulic system (see Charge Hydraulic
System in this section).
10.Stop engine and check for hydraulic oil leaks. Check
hydraulic reservoir oil level.
11. Lower and secure seat.
Hydraul
ic
System