Removal (Fig. 87)
Before removing any parts from the hydraulic sys-
tem, park machine on a level surface, set brake, lower
attachment, and stop engine.
Cleaning and Inspection (Fig. 87)
1.
1. Back flush oil cooler with cleaning solvent (bottom
opening to top opening). After cooler is clean, make sure
all solvent is drained from the cooler.
CAUTION
CAUTION
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
draulic oil. Controls must be operated with the
ignition switch in OFF. Remove key from the igni-
tion switch.
Use eye protection such as goggles when using
compressed air.
2.
Dry inside of oil cooler using compressed air in the
opposite direction of the oil flow (bottom opening to top
opening).
2.
Pivot seat up. Remove cover (8) from the midsec-
tion of the machine.
3.
Plug both ends of the oil cooler. Clean exterior of the
cooler. Make sure fins are clear of dirt and debris.
3.
Disconnect air hose attached to the air cleaner on
the engine.
4.
The oil cooler should be free of corrosion, cracked
tubes, and excessive pitting of tubes.
4.
Remove both lock nuts (12), cap screws (15), and
strip retainer (19) securing the lower part of the rubber
shield (20) to the frame. Position shield away from the
bottom of of the oil cooler (2).
Installation (Fig. 87)
1. Make sure hydraulic both openings to the oil cooler
are clean. Remove plugs from the cooler openings.
5.
Clean both 90o hydraulic fittings (5), hydraulic hose
and valve to cooler tube (6). Clean oil cooler (2) in
the area of these fittings.
(43),
2. Reinstall O–rings (29) and 90o hydraulic fittings (5)
to the oil cooler (2).
6.
Label all hydraulic connections for reassembly.
3. Position the oil cooler (2) to the front shield (26).
7.
(5)
oil.
Place a suitable container under 90o hydraulic fitting
at the bottom of the oil cooler (2) to collect hydraulic
4. Secure oil cooler to the front shield (26) with both
rubber clamps (3), flat washers (17), spacers (16), cap
screws (11), and T–nuts (4).
8.
Disconnect valve to cooler tube (6) from 90o hydrau-
lic fitting (5). Allow fluid to drain from into the container.
5. Remove caps or plugs on disconnected hoses and
fittings.
9.
Disconnect hydraulic hose (43) from 90o hydraulic
fitting (5). Allow fluid to drain completely from the cooler
into a suitable container.
6. Reconnect valve to cooler tube (6) to 90o hydraulic
fitting (5).
7.
Reconnect hydraulic hose (43) to 90o hydraulic fit-
ting (5).
10.
Put caps or plugs on disconnected hoses and fit-
tings to prevent contamination.
8.
Reinstall cover (8) to the midsection of the machine.
11.
Remove both cap screws (11), spacers (16), and flat
Pivot seat down.
washers (17) from rubber clamps (3) and T–nuts (4).
9.
Fill tank with hydraulic fluid (see Check Hydraulic
12.
13.
Pull the oil cooler (2) from the machine.
System Fluid and Change Hydraulic System Oil and Fil-
ter).
Remove 90o hydraulic fittings (5) and O–rings (29)
from the oil cooler (2).
10. Charge hydraulic system (see Charge Hydraulic
System).
Sand Pro 2020/3020/5020
Page 4 – 73
Hydraulic System (Rev. A)
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro 3020, Toro 5020, Toro 98957SL.Toro 2020 |
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| Document Type | Service Manual |
| Language | English |
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