Toro Groundsmaster 3500-D Service Manual page 145

CAUTION
Support piston and gear pumps when installing
them to the machine to prevent them from falling
and causing personal injury.
8. Position pump mount plate with pumps, pump pulley,
and idler assembly to the machine. Install fasteners and
spacers securing the pump mount plate to the engine
and pump support. Tighten fasteners securely.
9. Remove plugs from hydraulic hoses. Connect all hy-
draulic hoses as follows:
A. Secure o--rings, fittings, and hydraulic hoses to
the gear pump.
B. Connect hydraulic suction hose from the hydrau-
lic tank to the gear pump barb fitting with hose clamp.
C. Secure o--rings, fittings, and hydraulic hoses to
the piston pump.
10.Install neutral arm assembly to the piston pump as
follows:
A. Position neutral bracket to the mount plate and
the pump lever to the pump trunnion.
B. Secure pump lever to the piston pump trunnion
with flat washer and cap screw.
C. Secure neutral bracket to the pump mount plate
with flange head screw and flange nut. Secure neu-
tral bracket to the piston pump with both flange head
screws.
D. Connect traction control cable to the pump lever.
CAUTION
The extension spring is under tension and may
cause personal injury during installation. Use
caution when installing the spring to the pump
lever.
E. Install extension spring to the cable support
bracket and neutral arm.
Groundsmaster 3500--D
11. Install traction belt to the pump pulley (see Replace
Traction Belt).
12.Using a straight edge across the lower face of the
pump pulley, verify traction belt alignment across engine
and pump pulleys. Slide pulley and taper lock bushing
on pump shaft so that traction belt and straight edge are
aligned indicating correct position of pump pulley. Se-
cure taper lock bushing in position with set screw.
IMPORTANT: When tightening bushing cap screws,
tighten in three equal steps and in a circular pattern.
13.Secure taper lock bushing by tightening three (3) cap
screws to a torque from 90 to 120 in--lb (10.2 to 13.6
N--m) in three equal steps and in a circular pattern to se-
cure pulley and taper lock bushing.
14.Check that belt alignment is still correct. If needed,
loosen and re--adjust pulley and taper lock bushing loca-
tion on pump shaft to allow for correct belt alignment.
15.Fill hydraulic tank with new hydraulic fluid (see Trac-
tion Unit Operator's Manual).
16.Adjust traction drive for neutral (see Adjust Traction
Drive for Neutral).
Page 4 - - 97 Hydraulic System (Rev. D)