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 1.
Pump gear
10.
Friction hub
19.
Shaft spring
2.
Gear plate, outlet
11.
Worm wheel ring
20.
Shaft washer
3.
Bearing plate
12.
Friction ring
21.
Packing
4.
Housing plate
13.
Clutch block
22.
Bearing plate
5.
Bearing key
14.
Friction ring bushing
23.
Gear plate, inlet
6.
Sleeve, adjusting pinion
15.
Drive shaft
24.
Pump gear
7.
Bearing locknut
16.
Gear screw
25.
Idler shaft
8.
Bearing
17.
Drive gear
26.
End plate
9.
Drive pinion
18.
Drive shaft bushing
27.
Adjusting screw
Figure 5-92. Pumps and clutches, sectional view.
(b) Lay pump, clutch up, on deck and lift
(5)
Assembly.
clutch assembly.
(a) Assembly of pump is in reverse order of
(3) Disassembly.
disassembly.
(a) Remove gear screws (16) from drive
(b) In assembly replace packing rings
gears and remove gears.
making sure there is a washer at each end of rings.
(b) Remove capscrews holding pumps to
(c) Install drive gears and pinion gear in
housing plate and lift pump from plate.
reverse order of disassembly.
(c) With two drive gears removed, the drive
(6) Installation.
pinion (9) with bearing (8) can be removed.
NOTE
(d) To remove bearing from pinion shaft, lift
The pinion assembly is held to the friction
tab on locknut washer and remove bearing locknut (7).
hub by a sleeve and spring on the inside of
(e) To disassemble pump remove four
the housing plate and a screw on the
capscrews from pump end plate and end plate (26), gear plates
outside of the plate.
Proper pinion
(23 and 2), and gears can be removed.
positioning cannot be done until the
(f) To remove drive shaft (15) pull shaft from
assembled plate is fastened properly in the
pump housing and bushing (18) will withdraw from pump
frame.
housing.
(a) Align holes in housing plate with holes in
(4) Cleaning, inspection, and repair.
frame.
(a) Inspect gears and shafts for signs of
(b) Check position of two driving lugs on
wear. Replace defective parts.
pinion, and line up with slots in friction hub. Position assembly.
(b) Inspect bearings by spinning while
holding in hand. Replace those which run rough.
5-123
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