Toro 98957SL Rev B Sand Pro 2020 3020 5020 Service Manual

NOTE:  When properly installed, a light spring compres-
sion can be felt when pushing the cylinder block assem-
bly into the variable housing.
7
9.
Position variable  housing in a  horizontal position.
6
Slide cylinder block assembly over the  shaft engaging
splines. Make sure  pistons and thrust  plate remain in
place (Fig. 51).
5
1
10.
Press  needle bearing  into  the end  cap.  Bearing
2
must protrude 3/32  to 1/8 inch (2.38 to  3.18mm) from
face (Fig. 51).
3
8
9
11.
Lubricate exposed  face of the  cylinder block with
clean hydraulic fluid (Fig. 51).
12.
Position end cap to the variable housing. Lubricate
4
O–rings with clean hydraulic fluid. Position O–rings into
recessed holes of the end cap (Fig. 52).
Figure 52
1.
2.
3.
4.
5.
Cap screw (4 used)
Washer (4 used)
End cap
Variable housing
Valve plate
6.
7.
8.
9.
Locating pin
O–rings
End cap gasket
Needle bearing
13.
Slide four cap screws through washers and end cap
holes. Place gasket  onto the cap screws  and the end
cap face (Fig. 52).
IMPORTANT: Make sure slotted and grooved side of
the valve plate is against the end cap face. The two
V–notches must face away from the end cap.
14.
Insert locating pin into the end cap. Lubricate slotted
side of  valve plate. Slip plate  over pin and  protruding
bearing (Fig. 52).
IMPORTANT: Make sure valve plate, gasket, and O–
rings stay in position when securing the end cap to
the variable housing.
15.
Mate four cap screws to the variable housing (Fig.
52).
A.  Tighten  cap screws  in  an  alternating  pattern
while checking for proper assembly. Turn pump and
control shafts slowly while tightening cap screws.
B.  Tighten screws until the housing and end cap are
completely pulled together.
C. Torque cap screws from 27 to 37 ft–lb (3.7 to 5.1
kg–m).
16.
Assemble charge  pump to  variable housing  (see
Charge Pump Assembly).
17.
Installnew lip seals to shaft and trunnion shafts (see
Shaft Seal Installation).
Sand Pro 2020/3020/5020
Page 4 – 55
Hydraulic System (Rev. A)
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 170 pages
Document TypeService Manual
LanguageEnglish
Product BrandToro. Customer Service Representatives are available by phone: Monday - Friday 7:30 a.m. to 9:00 p.m. (CDT) - Saturday 8:00 a.m. to 8:00 p.m. (CDT) - Sunday 10:00 a.m. to 8:00 p.m. (CDT)
Canada 1-888-225-4886 USA 1-888-384-9939, Lawn Mower
Document File TypePDF
Publishertoro.com
Wikipedia's PageToro Company
CopyrightAttribution Non-commercial
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