Toro Reelmaster 335-D User Manual

Disassembly of Sundstrand Tandem Pump
1
23
11
15
13
12
18
14
25
7
23
6
14
10
10
2
11
12
13
15
8
24
24
9
6
4
16
17
5
7
22
21
20
19
1
2
3
Figure 32
1. Capscrew 9. Valve plate (R.H.) 17. Bearing
2. Washer 10. Valve plate pin 18. Retaining ring
3. Pump housing 11. Cylinder block assembly 19. Drive shaft
4. Pump housing 12. Pistons 20. Bearing
5. Center section 13. Slipper guide 21. Retaining ring
6. Gasket 14. Piston block 22. Retaining ring
7. Alignment pin 15. Thrust plate 23. Swash plate
8. Valve plate (L.H.) 16. Drive shaft 24. Needle bearing
25. Drive coupling
Cleanliness is a primary way of getting satisfactory
transmission life, on either new or repair units. Cleaning
parts by using a clean solvent wash and air drying is
usually adequate. As with any precision equipment, all
parts must be kept free of foreign materials and chemi-
cals. Protect all sealing surfaces and open cavities from
damage and foreign material.
During assembly of the pump, all surfaces which have
re
lative motion between two parts should be coated with
a film of clean hydraulic oil. This will assure that these
surfaces will be lubricated during start-up.
It is recommended that all gaskets, o-rings and seals be
re
placed. Lightly lubricate all o-rings with clean petro-
leum jelly before assembly. All gasket sealing surfaces
must be cleaned before installing new gaskets.
1. Before performing major repairs on the pump, remove
ext
ernal components as described in previous proce-
dures. These include the Charge Check / High Pressure
Relief Valves and Charge Relief Valve.
2. Remove four (4) screws which retain each pump
sect
ion to center section.
3. Remove housings from center section.
IMPORTANT: The valve plates may stick to the cen-
t
er section. Do not allow valve plates to fall from
center section.
4. Remove gaskets and alignment pins from center
sect
ion.
NOTE: Since the tandem pump sections are mounted
“back-to-back”, each section will have a different valve
plate installed. Note the position of each valve plate for
proper installation during assembly of the tandem
pump.
IMPORTANT: Be careful not to damage valve plate
a
nd center section surfaces.
Sundstrand Tandem Pump Repairs P
age 4 - 40 Reelmaster
®
335-D

Toro Reelmaster 335-D Specifications

General

Brand	Toro
Model	Reelmaster 335-D
Category	Lawn Mower
Language	English