Toro Sand Pro 5020 - Manual (Page 85)

Removal (Fig. 25)
1. Before removing any parts from the hydraulic sys-
tem, park machine on a level surface, engage parking
brake, lower attachment, and stop engine.
CAUTION
draulic oil. Controls must be operated with the
tion switch.
Operate all hydraulic controls to relieve system
pressure and avoid injury from pressurized hy-
ignition switch in OFF. Remove key from the igni-
2. Remove cover from the midsection of the machine.
Pivot seat up. Unscrew knob (5) from lift lever (6).
3. Remove lift valve shroud (2) as follows:
A. Remove self tapping screw (16) from the shroud
and frame.
B. Remove both cap screws (3) and lock nuts (38)
securing the shroud, lift lever guide (36), and valve
lever latch (20) to the frame.
C. Lift shroud from the frame.
4. Clean lift valve (14) and all hydraulic fittings, tubes,
and hoses attached to it thoroughly.
5. Label all hydraulic connections for reassembly.
6. Disconnect both hydraulic hoses (30) from the lift
valve. Disconnect swivel run T–fitting (12) from the 45
o
hydraulic fitting (13). Disconnect hydraulic tube (34)
from the 90
o hydraulic fitting (4). Allow hoses, tubes, and
fittings to drain into a suitable container.
7. Put caps or plugs on disconnected hoses, tubes,
and fittings to prevent contamination.
8. Remove cap screw (7) and lock nut (10) securing
the pivot (18) to the lift valve stem.
9. Remove four cap screws (15) and lock nuts (11) se-
curing the pivot bracket (9) to the lift valve and the lift
valve to the frame. Separate lift valve from the frame. Do
not further disassemble parts assembled to the lift
lever.
IMPORTANT: Match mark positions of hydraulic fit-
tings (4 and 13) relative to their ports on the lift
valve.
10. Remove remaining hydraulic fittings (4 and 13) and
O–rings (31) from the lift valve.
Installation (Fig. 25)
1. Make sure lift valve, hydraulic hoses, fittings, and
tubes are cleaned thoroughly.
2. Reinstall O–rings (31) and hydraulic fittings (4 and
13) to the lift valve. Observe match marks when tighten-
ing.
3. Position lift valve (14) to the frame. Insert four cap
screws (15) through the frame and lift valve. Screw lock
nuts (11) to the bottom two cap screws (15).
4. Position lift lever (6) through the frame and attached
pivot bracket (9) and other attached parts onto the top
two cap screws (15). Screw lock nuts (11) to the top two
cap screws (15). Tighten all four lock nuts.
5. Secure pivot (18) to the lift valve stem with cap
screw (7) and lock nut (10). Tighten fasteners.
6. Remove caps and plugs from the disconnected
hoses, tubes, and fittings
7. Reconnect hydraulic tube (34) to the 90 o hydraulic
fitting (4). Reconnect swivel run T–fitting (12) to the 45 o
hydraulic fitting (13). Reconnect both hydraulic hoses
(30) with O–rings (29) to the lift valve. Tighten all con-
nections.
8. Attach lift valve shroud (2) as follows:
A. Position valve lever latch (20) and lift lever guide
(36) over the lift lever and onto the frame.
B. Insert both cap screws (3) to the shroud.
C. Lower shroud around lift lever (6) and onto
frame. Make sure cap screws go through lift lever
guide (36) and valve lever latch (20).
D. Attach lock nuts (38) to cap screws. Do not
tighten fasteners.
E. Reinstall self tapping screw (16) to the shroud
and frame. Tighten screw.
9. Screw knob (5) onto the lift lever (6). Hand tighten.
10. Charge hydraulic system (see Charge Hydraulic
System).
11. Run machine and check lift valve, hydraulic hoses,
tubes, and fittings for leaks. Tighten as necessary.
12. Adjust lift lever (6) (see Adjust Lift Lever).
13. Reinstall cover to the midsection of the machine.
Hydraulic Systems
Sand Pro 2020/3020/5020 Page 4 – 35 Hydraulic System (Rev. A)