Toro 30446 - Page 281

Groundsmaster 4000--D/4010--D Page 7 -- 9 Chassis
Rear Arm Removal (Fig. 8)
1. Park machine on a level surface, lower cutting
decks, stop engine, apply parking brake and remove
key from the ignition switch.
2. Removehairpinandclevispinthatconnectsdamper
link to cutting deck (Fig. 9).
3. Removecapscrewandlocknutthatsecuresrodend
of rear arm to cutting deck. Locate and remove spacer
from each side of rod end.
4. Remove lock nut and lock washer that secures rear
armpivot shaft. Slide pivotshaftfrom hub and rear arm.
Remove rear arm assembly from machine.
Rear Arm Disassembly (Fig. 8)
1. Disassemblerear armassemblyusingFigure 8 as a
guide.
Rear Arm Assembly (Fig. 8)
1. Slide large flat washer, spring, plastic bearing, sec-
ond large flat washer and small flat washer onto spring
shaft.Looselysecurecomponentstoshaftwithonejam
nut.
2. Slide the straight bushing and plate onto other end
of spring shaft.
3. Whileholding flats on end of spring shaft, rotate jam
nut (on other end of assembly) until components are
snug but spring is not compressed.
4. Insert assembly into rear arm housing.
5. From open end of rear arm housing, insert a 3/4”
socket onto spring shaft jam nut. Tighten jam nut fully.
6. Mount plate to rear arm housing with two (2) cap
screws and lock nuts. Grasp end of spring shaft. Push
inward and pull outward on shaft to determine endplay
in assembly.
IMPORTANT: All endplay must be removed from as-
sembly to allow proper operation and ensure long life.
7. Loosen jam nut, 1/2 turn at a time, until all endplay
in shaft is removed.
8. Removetwo (2) cap screws and nuts securing plate
to rear arm housing. Remove spring shaft assembly
from housing.
9. Thread remaining jam nut onto end of spring shaft
and,whileretaininginnerjamnuttopreventitfrommov-
ing, torque outer jam nut from 22 to 28 ft--lb (30 to 37
N--m) to lock adjustment.
10.Thoroughly pack spring with grease. Install spring
shaft assembly into housing and secure plate with four
(4) cap screws and lock nuts.
11.Threadrodend(item8)withjamnut(item9)intoend
of spring shaft. Do not tighten jam nut at this time.
12.If rod ends (item 31) were removed from damper
(item 30), apply Loctite #271 (or equivalent) to damper
shaftthreadsbeforeinstallingrodends.Securedamper
tobellcrankandreararmwithcapscrewsandlocknuts.
Torquefastenersfrom270to 330in--lb (31to37 N--m).
13.If damper link was disassembled, adjust the length
of the link from 5.295” to 5.445” (134.5 to 138.3 mm)
(Fig. 9).
14.If damper springs (item 37) were removed, tighten
lock nuts so that bushings (item 36) are free to rotate.
1. Damper link assembly 2. Clevis pin
Figure 9
1
2
5.295” to 5.445”
(134.5 to 138.3 mm)
Chassis