Toro Reelmaster 3100-D Service Manual page 169

Disassembling the Gear Pump
Inspecting the Gear Pump
Reelmaster ® 3100-D/3105-D
20252SL Rev A
(Figure 75) (continued)
15. Remove the idler gear and drive gear from the front plate.
Note position of the open and closed side of the wear plate before
removing from the front plate.
16. Remove the wear plate from front plate. Remove O−ring from front plate
using O−ring pick.
17. Remove the back−up gasket and pressure seal from both wear plates.
Make sure not to damage the counter bore when removing the shaft
seal from the front plate.
18. Remove the shaft seal from the front plate using a drift punch.
(Figure 75)
1. Remove all nicks and burrs from all parts with an emery cloth.
Use eye protection such as goggles when using compressed air.
2. Clean all parts with solvent. Dry all parts with compressed air.
3. Inspect gear, drive gear, and idler gears for the following:
A. Drive gear shaft spline should be free of twisted or broken teeth.
B. Gear shafts should be free of rough surfaces and excessive wear at
bushing points and sealing areas.
C. Gear shaft diameter in the bushing area should not be less than 19.0
mm (0.748 inch).
D. Gears should be free of excessive scoring and wear.
E. Make sure that the drive and idler gears have their snap rings in the
grooves on each side.
F. Break sharp edges of gear teeth with emery cloth.
G. Gear width on the drive gear and front idler gear should not be less than
9.75 mm (0.384 inch). Gear width on the back gear and back idler gear
should not be less than 6.20 mm (0.244 inch).
4. Inspect body for the following:
A. Gear pockets should be free of excessive scoring and wear.
B. Inside diameter of gear pockets should not exceed 43.7 mm (1.719
inches).
5. Inspect front plate, back plate, and adapter plate as follows:
A. Inside diameter of all bushings should not exceed 19.2 mm (0.755 inch).
B. Bushings in the front plate should extend 3.20 mm (0.126 inch) from
the plate surface.
IMPORTANT
IMPORTANT
CAUTION
Page 5–93 Hydraulic System: Service and Repairs