Toro Reelmaster 6500–D Service Manual page 142

Repair Information
Work in a clean area, cleanliness is extremely important
when repairing hydraulic pumps. Before disconnecting
the lines, clean port area of pump. Disconnect hydraulic
lines, removing pump assembly from vehicle and plug
ports. Thoroughly clean the outside of pump. After
cleaning then remove port plugs and drain oil.
Disassembly
1. Scribe a line, at an angle, across front plate (8), bo-
dies (2, 16, 25), adapter plates (20, 21) and backplate
(30). This will assure proper reassembly.
NOTE: To maintain maximum pump efficiency, keep
body, gears and wear plates for each section together.
DO NOT mix parts between different sections.
2. Clamp pump in vise, shaft end up.
3. Remove the eight cap screws (10).
4. Remove pump from vise, hold pump in hands and
bump shaft against wooden block to separate front
pump sections. Front body (2) will remain with either
front plate (8) or front adapter plate (20).
5. Place front idler gear (13) into gear pocket and tap
with soft face hammer until the front body separates.
Now remove idler gear from front plate or adapter plate.
6. Remove plug (7) from front plate (8).
7. Remove front adapter plate (20) from body (2) by tap-
ping on the adapter plate with a plastic hammer or raw-
hide mallet.
8. Remove idler gear (18), slip fit gear (15), and key (14).
9. Remove backplate (30) from body (25) by tapping on
backplate with plastic hammer or rawhide mallet.
10. Remove rear idler gear (24), slip fit gear (17) and key
(19).
11. Remove drive gear assembly (3) from adapter plate
(21).
12. Place rear idler gear assembly (24) back into gear
pocket and tap protruding end with soft face hammer to
remove rear body (25) from the backplate assembly (30)
or the rear adapter plate (21).
13. Remove the wear plates (4) from front plate (8), front
adapter plate (20), and rear adapter plate (21).
Hydraulic System
14. Remove o–rings (1) from front plate (8), adapter
plates (20, 21), and backplate (30).
15. Remove backup gaskets (6) and balance pressure
seals (5) from front plate (8) and adapter plates (20, 21)
by prying out with a sharp tool.
16. Remove shaft seal (11) and washer (12) from front
plate (8) by prying with a screw driver.
17. Remove plug (23) and washer (22) from rear adapt-
er plate (21).
18. Remove relief valve (26) from backplate assembly
(30).
19. Remove O–ring (29), backup washer (27), and O–
ring (28) from relief valve (26).
Inspect Parts for Wear General
1. Clean and dry all parts.
2. Remove nicks and burrs from all parts with emery
cloth.
Gear Assembly Inspection
1. Check spline drive shaft for twisted or broken teeth or
check keyed drive shaft for broken or chipped keyway.
Also check for broken keyway, on drive shaft, that drives
the slip fit gear of the rear pump.
2. Inspect both the drive gear and idler gear shafts at
bushing points and seal area for rough surfaces and ex-
cessive wear.
3. Replace gear assembly if shaft measures less than
.873 in. [22,17mm] in bushing area. (One gear assembly
may be replaced separately; shafts and gears are avail-
able as assemblies only. The slip fit gear is available
separately).
4. Inspect gear face for scoring and excessive wear.
5. Replace gear assembly if gear width is below
1.181 in. [30,00 mm].
6. Assure that snap rings are in grooves on either side
of drive and idler gears.
7. If edge of gear teeth are sharp, break edge with
emery cloth.
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Reelmaster 6500–D/6700–D