caution - Toro

Assembly (Fig. 80)
NOTE: When assembling the motor, check the identification
marks made during disassembly to make sure
the parts are properly aligned during assembly.
1. Lubricate O--rings, pressure seals, back--up gaskets
and seal grooves with a thin coat of petroleum jelly. Lubricate
all other internal parts freely with clean hydraulic
oil.
2. Install new shaft seal into front flange.
3. Install lubricated pressure seals into the grooves in
the front flange and rear cover. Follow by carefully placing
the back--up rings into the grooves.
4. Install new O--rings to the body.
5. Lubricate gear faces and bearing surfaces of drive
gear, idler gear and bearing blocks with clean hydraulic
oil. Carefully assemble bearing blocks and gears noting
identification marks made during disassembly.
6. Position the motor body on its side. Carefully slide
bearing block and gear assembly into the body cavity
using identification marks made during disassembly.
7. Remove any excess lubrication from mating surfaces
of body, rear cover and front flange. Make sure
that these surfaces are clean and dry.
8. Install dowel pins in body.
9. Gently slide the rear cover onto the assembly using
marker or scribe mark for proper location. Firm hand
pressure should be sufficient to engage the dowel pins.
10.Position the motor with rear cover downwards. Carefully
slide the front flange onto the assembly using marker
line for proper location.
11.Install the four (4) cap screws and hand tighten.
IMPORTANT: Prevent damage when clamping the
deck motor into a vise; clamp on the front flange
only. Also, use a vise with soft jaws.
12.Place motor front flange in a vise and alternately
torque the screws from 33 to 40 ft -lb (45 to 55 N -m).
13.Put a small amount of hydraulic oil in port on motor
and rotate driveshaft one revolution. Protect the shaft if
using a pliers. If drive shaft binds, disassemble motor
and repeat assembly process.
14.Make sure that tapered surface of motor shaft and
spider hub are thoroughly clean.
15.Place woodruff key in motor shaft slot. Install spider
hub and tab washer on shaft. Secure spider hub to shaft
with nut. Torque nut from 27 to 33 ft -lb (37 to 45 N -m).
16.Secure nut to motor shaft by bending small tab of tab
washer into keyway and large tab against nut.
17.Remove motor from vise.
IMPORTANT: Do not dislodge O -rings, pressure
seals or back -up rings during final assembly.
Hydraulic System Page 4 - 116
Groundsmaster 4100--D