User manual

Groundsmaster 4000--D/4010--D Page 7 -- 13 Chassis
Joint Yoke D isassembly
1. Remove retaining rings from yoke and deck mount.
IMPORTANT: Support yoke when removing cross
and bearings to prevent yoke damage.
2. Use a press to remove yoke from deck mount:
A. Place a small socket against one bearing in the
deck mount and a large socket on the opposite side
of the mount.
B. While supporting the large socket, apply pres-
sure on small socket to partially push the opposite
bearing into the large socket.
C. Removeassemblyfrom press,grasppartially re-
moved bearing and tap on y oke to completely re-
move the bearing.
D. Repeat process for remaining bearing.
E. Remove yoke from mount.
3. Usea press and theaboveprocessto remove bear-
ings and cross from yoke.
4. Thoroughly clean and inspect all components.
Joint Yoke A ssembly
1. Make sure that rubber plate (item 6) and plate (item
5) are positioned in bottom of deck mount.
2. Apply a coating of grease to bearing bores of yoke
and deck mount. Also, apply grease to bearings and
sealofbearingassembly.Makesurethatallbearingroll-
ers are properly seated in bearing cage.
3. Use a press to install cross and bearings into yoke.
A. Press one bearing partially into yoke.
IMPORTANT: Take care when installing cross
into bearing to avoid damaging bearing seal.
B. Carefully insert cross into bearing and yoke.
C. Holdcrossinalignmentandpressbearinginuntil
it hits the yoke.
D. Carefully place second bearing into yoke bore
and onto cross shaft. Press bearing into yoke.
4. Use a press and the above process to install deck
mount to yoke.
5. Install retaining rings to yoke and deck mount to se-
cure bearings in place.
6. Makesure that assembled joint yoke moves without
binding. Slight binding can usually be eliminated by
lightly rapping the yoke lugs with a soft faced hammer.
If binding continues, disassemble joint yoke and deck
mount to identify and eliminate source of binding.
Installation (Fig. 11)
1. Position joint yoke with deck mount to cutting deck.
2. Securedeckmounttodeckwitheight(8)capscrews,
lock washers and flat washers (Fig. 12).
3. Placespacer washer (chamfered ID s ide down) and
thenthrustwasher (item 11)onto jointyokeshaft.Insert
yokeshaftupthroughliftarmbushings.Placeadditional
thrust washers (items 11 and 21) and then hardened
washer (item 12) on yoke shaft and secure with slotted
hex nut. Torque nut from 150 to 180 ft--lb (203 to 244
N--m) while aligning hole in shaft w ith slot in nut. Install
cotter pin.
4. Positionspacersonbothsidesofrodendofreararm
assembly.Secure rodendofreararmassembly todeck
mount with cap screw and lock nut.
5. Greasejointyokeandliftarmbushingsafterinstalla-
tion on machine.
6. Afterassemblyiscompleted,raiseandlowerthecut-
tingdecktoverifythathydraulichosesandfittingsdonot
contact anything.
1. Lift arm (RH shown)
2. Joint yoke
3. Rear arm assembly
4. Deck mount
5. Cap screw/washers
Figure 12
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1
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4
5
Chassis