Toro Groundsmaster 4500-D Series Service Manual page 208

Installation (Figure
Hydraulic System: Service and Repairs
101) (continued)
6. Using labels placed during pump removal, connect wire harness connectors
to the two (2) solenoid coils on left side of piston (traction) pump.
g308681
1. Gear pump
2. Piston pump
7. Fill piston (traction) pump housing with new hydraulic oil through the case
drain (90º barbed fitting) at the top of the pump
ensure that internal pump components have adequate lubrication during
initial operation.
8. Remove plugs and caps from disconnected hydraulic lines and fittings of
the pump assembly. Install hydraulic lines to correct location on gear and
piston pumps (see
(page 5–7)).
9. Fill hydraulic reservoir with correct oil.
10. Install new hydraulic filter and fill hydraulic reservoir with correct oil.
Refer to Traction Circuit Problems (page 3–4)
regarding the importance of removing contamination from the
traction circuit.
11. Prime hydraulic pumps (see
12. Properly fill hydraulic system (see
13. Stop engine and check for hydraulic oil leaks. Check hydraulic reservoir oil
level and adjust if necessary.
Figure 104
3. Piston pump case drain
Installing Hydraulic Hoses and Tubes (O-Ring Face Seal)
IMPORTANT
Priming Hydraulic Pumps (page
Charge Hydraulic System (page
Page 5–106
(Figure 104). This will
for information
5–90)).
5–95)).
Groundsmaster ® 4500-D/4700-D
19245SL Rev A