Toro Field Pro 6040 Service Manual page 136

Assembling the Gear Pump (continued)
Hydraulic System: Service and Repairs
4. Install the pressure seals, flat side outward, into the grooves in the thrust
plates. Follow by carefully placing the uni-rings, flat side outward, between
the pressure seals and the grooves in the thrust plate.
5. Apply a light coating of petroleum jelly to the exposed side of the front cover.
6. Lubricate the drive shaft/gear with clean hydraulic oil. Insert the drive end of
the drive shaft through the thrust plate with the pressure seal side down and
the open side of the pressure seal pointing to the inlet side of the pump. Fit
the drive shaft/gear into the front cover.
7. Lubricate the idler shaft/gear with clean hydraulic oil. Align the gear teeth
position markings made during disassembly and install the idler gear shaft
into the front thrust plate and front cover. Apply a light coating of clean
hydraulic oil to the gear faces.
8. Install the rear thrust plate with the pressure seal side up and the open side
of the pressure seal pointing to the inlet side of the pump.
9. Install the dowel pins in the body.
10. Apply a light coating of petroleum jelly to the new body seals and body seal
grooves in the body. Install the new body seals into the body.
Do not dislodge seals during installation.
11. Align the marker lines and slide the body over the gear assembly.
12. Install dowel pins in rear cover.
13. Align the marker lines and slide the rear cover over the shaft ends.
14. Install the 4 cap screws with washers and hand tighten.
15. Place the front cover of the pump into a vise with soft jaws and use a crossing
pattern to tighten the cap screws to 25 N∙m (18 ft-lb) .
16. Place a small amount of clean hydraulic oil in the pump inlet and rotate the
drive shaft clockwise one revolution. If any binding is noted, disassemble the
pump and check for assembly problems.
IMPORTANT
Page 5–70 Field Pro® 6040
22267SL Rev A