2.
Remove plugs from piston pump openings that were
10.Using a straight edge across the lower face of the
pumppulley,verifytractionbeltalignmentacrossengine
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.
placed during disassembly. Install hydraulic fittings with
new o--rings to their original positions on the piston
pump.
NOTE: Ifinstallinganewgearpumptothepistonpump,
make sure to remove the plug from the suction port of
the gear pump (Fig. 53). The gear pump suction fitting
must be on the same side as the trunnion of the piston
pump.
IMPORTANT: Whentightening bushing capscrews,
tighten in three equal steps and inacircular pattern.
11.
Securetaperlockbushingbytighteningthree(3)cap
3.
Remove plugs that were placed during disassembly
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.
from gear pump openings. Position o--ring(item 54) and
gearpumptothepistonpumpandsecurewithflatwash-
ers (item 55) and cap screws (item 56). Torque cap
screws from 27 to 31 ft--lb (37 to 42 N--m).
12.Check
that belt alignment is still correct. If needed,
loosenandre--adjustpulleyandtaperlockbushingloca-
tion on pump shaft to allow for correct belt alignment.
4.
Place key into pump shaftslot. Slidetaper lockbush-
ing onto the piston pump shaft with bushing flange to-
ward pump housing.
13.Remove
from hydraulic hoses. Connect all hydraulic hoses with
new o--rings to piston and gear pumps.
plugs that were placed during disassembly
5.
Make sure that tapered surfaces of pulley and taper
lock bushing are thoroughly clean (no oil, grease, dirt,
rust, etc.).
14.Install
Neutral Arm Assembly Installation in this section).
neutral arm assembly to the piston pump (see
6.
Position pulley to taper lock bushing and align non--
15.Fill
tion Unit Operator’s Manual).
hydraulic tank with new hydraulic fluid (see Trac-
threaded holes of pulley with threaded holes ofbushing.
Loosely install three (3) cap screws with lock washers to
bushing and pulley.
16.Adjust
traction drive for neutral (see Traction Unit
Operator’s Manual).
CAUTION
Support piston and gear pumps when installing
them to the machine to prevent them from falling
and causing personal injury.
7.
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 (Fig. 52). Tighten fasteners securely.
8.
mount plate, piston pump and engine mount with re-
moved fasteners and spacers.
Position and secure pump support (item 28) to pump
2
1
9.
Install traction belt (see Traction Unit Operator’s
Manual).
Figure 53
1.
Gear pump
2.
Suction port
Hydraulic System
Page 4 -- 82
Groundsmaster 3505--D
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| Language | English |
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