Toro 03116SL Rev E Service Manual Groundsmaster 4100 D Preface Publication

8.
thrust bearing (13), second thrust race (12), and second
retaining ring (3) onto drive shaft (21). Position washer
Place exterior  retaining  ring (3),  thrust race  (12),
16.Apply a small amount of petroleum jelly to the steel
side of valve plate (18) to hold in place for installation.
Aligning the index pin, place the valve plate (18) in posi-
tion onto  the  backplate (20),  with  steel side  against
backplate.
(24)
and shaft seal (25) onto shaft.
9.
Install shaft assembly into front ofhousing. Seat seal
(25)
retaining ring (2).
into position with seal driver and retain with interior
17.Install backplateassembly(20)ontohousingassem-
bly (19). Make sure ports are positioned correctly, and
that valve plate (18) and gasket (32) stay in place.
10.Install
servo piston follower (8) onto camplate dowel
pin. Install  camplate (11)  carefully onto  bushing (44)
(coat bushing surface with hydraulic oil), aligning servo
piston follower (8) with slot in servo piston assembly (7).
18.Retain  backplate (20)  with  four cap  screws (15).
Torque cap screws from 27 to 31 ft--lb (37 to 42 N--m).
19.Install
control  housing gasket  (34)  onto housing.
11.
Position housing  in  a horizontal  position. Holding
Install orifices (30) into servo control assembly (28) and
retain in position with petroleum jelly. Position the feed-
back link  at 90  degrees from  control housing.  Install
manual servo control assembly (28) onto housing mak-
ingsurefeedback  linkenteredsmallgrooveinservopis-
ton assembly (7).
camplate (11) in position with screw driver through con-
troller linkage passageway at the top of housing, place
rotatingkitassembly(6)overshaftandintohousinguntil
pistons are against camplate (11). Make sure all parts
are in housing completely and are properly positioned.
Returnthepumptothevisewithopenendofhousingup,
clamping housing on the outer portion of the flange.
20.Secure
control  assembly   with  six  socket  head
screws (17). Torque screws from 40 to 48 in--lb (4.5 to
5.4 N--m).
12.Install
gasket (32) onto housing.
13.If
necessary, press new bearing (45) and roll pin (38)
21.Install control arm (27) onto control assembly input
shaft. Retain with lock washer (23) and nut (22). Torque
nut from 4 to 6 ft--lb (5 to 8 N--m).
inbackplate(20)todimensionshowninFigure47.Note:
Bearing should be installed with the numbered end out-
ward. Roll  pin should  be  installed with  split oriented
away from bearing.
22.Install
remaining  plugs  that  were  removed  from
pump. Torque 3/4 in. plug from 21 to 24 ft--lb (28 to 32
N--m). Torque 1--1/4 in. plug from 40 to 45 ft--lb (54 to 61
N--m).
14.Install
relief valve in the cavity in backplate that it was removed
and torque from 100 to 110 ft--lb (136 to 149 N--m).
new o--ring on relief valves (16 & 26). Install
15.Install
new o--ring on bypass valve  (14). Install by-
pass valve  (14) into backplate (20).  Note: Make sure
paddle of bypass valve is perpendicular to relief  valve
axis prior to installing or damage could result.
Groundsmaster 4100--D
Page 4 -- 63
Hydraulic System
Product Specification
CategoriesLawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals
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- 258 pages
Document TypeCatalog
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)
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