Eaton Hydrostatic Transaxle 850 Series Owner's manual

EATON 850 HYDROSTATIC TRANSAXLE
Table of Contents – Page 1 of 1
EATON CORPORATION MODEL 850 TRANSAXLE
MODEL 850 TRANSAXLE
850 TRANSAXLE PARTS LIST
TRANSAXLE SERIES 850
PRODUCT IDENTIFICATION AND ORDERING INFORMATION
COMPLETE DISASSEMBLY
AXLE DISASSEMBLY PROCEDURES
HOUSING DISASSEMBLY PROCEDURES
ROTOR ASSEMBLIES-- DISASSEMBLY AND INSPECTION
REASSEMBLY
HOUSING REASSEMBLY
COVER REASSEMBLY
AXLE REASSEMBLY
FLUID RECOMMENDATIONS

NO. 7-414
Eaton
Hydraulics
Division
Hydrostatic Transaxle Series
850

850 Transaxle Parts List
Ref .
No. Description
1 Cover,Subassembly (S/A) ......................
3
2Shaft.Input.
S/A
Bearing.InputShaft .......................
4 ...................
5
Ring. Retaining. External
Ring.Retaining.Internal
....................
6 Seal.InputShaft ............................
7 Seal.ControlShaft ..........................
8 Housing. S/A .................................
9 Piston.Dampening. S/A ......................
10Seal.BrakeShaft ............................
11 Plug.SocketPipe .............................
12PumpRotor-Ball-Pin. S/A .......................
13CamRing. S/A ................................
14Insert ........................................
15ControlShaft. S/A .............................
16Spring.DumpValve ............................
17Bracket.DumpValve ...........................
18Dowel .......................................
19Gasket.Cover ................................
20Button .......................................
21O-ring .......................................
22Gasket.AxleHousing ..........................
23Screw1/4-20Hex Flange ......................
24Gasket.FilterBaseorPortPlate .................
25FilterBase. S/A ...............................
26AxleHousing. S/A - B ..........................
27Shaft.Axle .................................
28RetainingRing.Internal ......................
29Housing.Axle - B ............................
30 Seal.AxleShaft .............................
31Bearing.Axle ...............................
32RetainingRing. External ......................
33Washer,Thrust ..............................
34Spacer (Thick-PB) ............................
34 a Washers. Thrust and Bearing.
Thrust (DL/PB)
............................
35Screw.1/4-20SelfTap .........................
36Spacer(Thin-PBor DL/PB) ....................
37BrakeGear ...................................
39 Motor,Rotor-Ball.A & BS/A
38Drive
40ParkingBrakeorOptionDifferential
Lock/ParkingBrake(PBor DL/PB)
.............
41Plate.Wear ...................................
42RingGear.A & B S/A ......................
43BrakeShaft-A (PB) ............................
43a BrakeShaft-A (DL/PB) ........................
44Brake Shaft-B (PB) ............................
44a BrakeShaft-B (DL/PB) ........................
45PlanetaryGear.First.Subassembly ..............
46SunGear.First ...........................
47PrimaryCarrier. A & B S/A ..................
48 PintGear.First. A & B S/A ..................
49PlanetaryGear.Second. A & B S/A ..............
50 SunGear.Second ........................
51SecondaryCarrier. A & B S/A ...................
52 PintGear,Second. A & B S/A ...............
53Washer,Thrust ................................
54 AxleHousing. S/A -A ..........................
27Shaft.Axle ..................................
28RetainingRing.Internal ......................
55 Housing.Axle - A ............................
30Seal.AxleShaft .............................
31Bearing.Axle ...............................
32RetaininRing.External ......................
33Washer, ..............................
56Plug.Magnetic ................................
57O-ring.DumpValveNut .........................
58Screw.1/4-20HexFlange ......................
59Cover(PBor DL/PB) ...........................
60 Boot.Dust ....................................
62Spring.ReliefValve ............................
63 Screw. 1/4-20HexFlange ......................
64 Filter.Oil (w/seal) ..............................
65Ball.Grade200 ...............................
............................
........................................
................
61 Nut.DumpValve ..............................
© Copyright 1987 Eaton Corporation
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3

Transaxle Series 850
The following tools are required for disassembly and 3 or 4 Large Wide Rubber Bands
reassemblyof the transaxle. Light Petroleum Jelly (such as Vaseline)
4
3/8 inch Socket or End Wrench
1 inch Socket or End Wrench
Torque Wrench
(300 Ib-in)
No.
5 or 7 Internal Retaining Ring Pliers
No.
4 or 5 External Retaining Ring Pliers
6 or 8 inch C-clamp
Small Screwdriver
(4 to 6 inches long)
Long DriftPunch
Pieceof Pipe or Hydraulic Tubing
(1 ½ in.O.D. x 6
in. long)
Product Identification and Ordering Information
When ordering parts for the transaxle, please
include the following:
Date Code
Input Rotation
Model Number
Part Name
Part Number
Quantity
of Parts
This information is located on the under side
of the
pump housing, opposite the input shaft.
Complete Disassembly
The following procedures describe complete disas-
sembly of the Transaxle Series
850. These proce-
dures cover the basic unit only. However, procedures
for units with options such as the differential lock/
parking brake are still basically thesame.
Thelevelof cleanliness maintained while repairing
the transaxle could affect its performance.Work ina
clean area. After disassembly, wash all parts with
clean solvent and blow the parts dry withair. Inspect
all mating surfaces. Replace any damaged parts
that could cause internal leakage.Do not use grit
paper,files or grinders on finished parts.
Our service policyisto replace all seals and gaskets
whenever a transaxle is disassembled. Lubricate the
new seals with petroleum jelly before installation.
Use only clean, recommended hydraulic fluid on the
finished surfacesat reassembly.

F i Iter
1 Drain the transaxle and then remove the filter
2 Remove the hex flange screws from the filter
3 Remove the filter base from the housing
4 Remove the filter base gasket.
from the filter base.
base.
assembly.
Note: Thisgasket may have remained on the filter
base when the filter base was removed from the
housing assembly.
Transaxle with Filter and Filter
Base S/A Removed
Clean
5
C-clamp
5 It is easier to disassemble the axle assemblies
with the transaxle as shown. Before securing the
transaxleinthis position, place a clean towel
between the housing's filter base surfaceandthe
work surface.Thistowel protects the sealing surface
from possible damage during repositioning.
Secure the transaxle to a clean work surface with a
6 to 8 inch C-clamp. Do not overtighten the C-clamp
when securing the transaxle.

Thrust Washer
RetainingRing
Hex Flange Screw
Thrust Washer
Sun GearSecon
6
Spacer
(Thick)

6 Remove the hex flange screws from either axle
7 Carefully remove the axle assembly from the
8 Inmost cases the brake shaft will remain in the
assembly.
housing assembly.
housing assembly when the axle assembly is
removed.
If this occurs, remove the brake shaft at
thistime.
Important: Be extremely careful when removing
the motor rotor assemblies. The ball pistons are
spring loaded in the bores and must remain
intact because each ball piston is matched to its
respective bore.
9
The bestway to remove the motor rotor assem-
bliesisto place a separate motor race on topof the
existing motor raceinthe housing assembly. Hold
the separate race securely in position. Then
carefully pull the motor rotor assembly outward until
the ball pistons are fully engaged in the groove
located in the centerof the separate race. Carefully
remove the rotor assembly and race together as a
set, handling the motor rotor assembly only.
Note: If a separate motor race is not available, work
a wide rubber band around the outsideof the motor
rotor to hold the ball pistonsintheir bores.It is
essential that the ball pistons be retained in their
bores during handling. This is especially true for the
motor rotors, as the motor ball pistons are spring
loadedinthe bores.
10 Reposition the transaxle and remove the hex
flange screws from the remaining axle assembly.
11 Carefully remove the axle assembly from the
housing assembly.
12 Remove the remaining brake shaft from the
housing assembly.
13 Using a separate race or wide rubber band to
retain the ball pistons in their bores, carefully remove
the other motor rotor assembly.
Axle Disassembly Procedures
14
The following procedures apply to both axle
assemblies.
15 Remove the axle housing gasket from the wear
plate.
Note: This gasket may have remained on the
housing assembly when the axle assembly
was
removed.
16 Remove the wear plate from the axle assembly.
17 Remove the axle housing gasket from the ring
gear assembly.
18 Remove the first sun gear from the primary
carrierassembly.
Note: Thefirst sun gear may have remained in the
motor rotor during removalof the axle assembly.
19 Remove the primary carrier assembly from the
ring gear assembly.
20 Remove the second sun gear from the
secondary carrierassembly.
21 Remove the ring gear assembly from the axle
housing.
22 Remove the gasket and dowel pins from the
axle housing.
23 Remove the brake gear from the axle housing.
24 Remove the spacer washer from the axle
housing.
Note: Ontransaxles with the differentiallock/parking
brake option,twothrust washers and
a thrust
bearing are used in placeof the spacer in the
A axle
assembly.
25 Remove the secondary carrier assembly from
the axle shaft.
26 Both the primary and secondary carrier assem-
bliesmay be disassembled for inspection.
27 Remove the thrust washer from the axle
housing.
28 Reposition the axle housing with the splined
endof the axle in the up position. Use a no.
4 or 5
external retaining ring pliers to remove the retaining
ring and thrust washer from the axle shaft.
29 Reposition the axle housing assembly with the
wheel endof the axle in the up position. Use ano.
5
or 7 internal retaining ring pliersto remove the
bearing retaining ring from the axle housing.
30 Remove the axle from the axle housing by
using a small press or by tapping the splined end of
the axle with a plastic tippedhammer. This will
dislodge the seal and bearing from the axle bore.
31 Press the bearing from the axle shaft. Remove
the seal and thrust washer from the axle shaft. The
thrust washer may have remainedinthe axle
housing when the axle shaftwas removed,
Note: The retaining ring remaining on the axle shaft
need not.beremoved.
7

8

Self Tap Screw
PB
or DL/PB
Cover
n
Brake
Housing Disassembly Procedures
32 Remove the four self tap screws from the brake
(PB orDL/PB).
33 RemovethePBorDL/PBcoverfromthe
housing assembly.
34 RemovethePBorDL/PBassemblyfromthe
housing assembly.
35 Inmost cases total disassemblyof the PB or
DL/PB isnotrecommended.
9
36 Onunits with the differentiallock/parkingbrake
option, thetwooutside disks are the only disks that
canbe removed easily for inspection and cleaning.
Note: Ontransaxles with the differentiallock/parking
brake option, do not move the lever unnecessarily,
especially when it is outof the housing assembly.
The differential lock/parking brake assembly incor-
porates automatic self-adjusting brakes. Activation
of the lever may cause the brake to expand and
make installationof the assembly very difficult.

RetainingRing
10
ControlShaft Seal InputShaft
S/A
Hex Flange
Cover
ControlShaft
\
Dump Valve Nut
O-ring
\
ft Seal
‘I
Spring
CamRing
S/A
ReliefValveSpring andBall
Housing
S/A

37 Reposition the housing assembly and remove
the hexflange screws from the cover assembly.
Note: One of the hex flange screws is located in
the case drainport.
38 Carefully separate and remove the cover from
the housing assembly.
39 Use a no. 5 or 7 internal retaining ring pliers to
remove the inputshaftretaining ring from the cover.
40 Reposition and support the cover with the input
shaft in the down position. Use a plastic hammer or
pressto remove the input shaft assembly from the
cover.
41 Remove the inputshaftseal from the cover with
a screwdriver.
42 Reposition the cover and thenprythe control
shaftseal from the cover assembly with a small
screwdriver.
43 Remove the cover gasket from the housing.
Note: The gasket may have remained on the cover
when it was removed.
44 Remove the charge pressure relief valve spring
from the housing assembly.
45 Use a pencil magnet or similar tool to remove
the charge pressure reliefballfrom itsseat.
46 Remove thetwo buttons from the cam ring
assembly.
Note: These buttonsmay have remained in the
cover assembly.
47 Remove the drive from the pump rotor
assembly.
48 Remove the control shaft and insert from the
housing and cam ringassembly.
49 Remove the cam ring insert from the control
shaft.
50 Remove the cam ring assembly from the
housing.
51 Carefully remove the pump rotor assembly from
the housing, making sure the ball pistons are not
dislodged from their bores.
Important: Itisessential that the pump rotor
assembly remain intact during handling as each
ball pistonismatched to its respective bore.
52
Install a wide rubber band around the pump
rotorto retain the ball pistons in their bores.
Rotor Assemblies-Disassembly and
Inspection
53
Inspect the rotor assemblies in the following
manner. Removethe piston balls from therotor, one
at a time, working clockwise from the letter stamped
inthe rotorface. Place the piston ballsina container
such as an eggcartonor icecubetray. The balls
mustbereplaced in the same bores from which they
were removed because they are all select fit.
Check for broken or collapsed springs in the motor
rotor assembly. When broken or collapsed springs
are found withnoother irregularities, the springs
maybereplaced individually without replacing the
complete motor rotor assembly.
Inspectthepiston balls. They mustbesmooth and
completely freeof any irregularities.
Inspecttherotor bores, rotor bushing and pintle
journalsfor irregularitiesor excessive clearance.
Theballpistonto rotor bore clearance is select fit
electronically from
.0002 to .0006 inch. When irregu-
larities are noted, replace the complete rotor
assembly.
54 Install the pistons in their matching bores. Hold
them in place with a rubber band or separate race.
55 Removethesocket head screws from the
charge pump plate.
56 Remove the charge pump plate from the
housing assembly.
57 Remove the charge pump gerotor assembly
from the housing assembly.
58 The pump and motor journals and camring
dowel cannotberemoved once they havebeen
installed in the housing assembly.
Note: Inspect the pump and motor journals for any
irregularities.
If any are found, the housing must be
replaced as a completeassembly.
59 In most cases. removal of the dampening
pistons for inspectionor cleaning is not recom-
mended. Normal flushing shouldbeallthat is
required for cleaning.
60 Remove the dump valve nut from the cover
assembly.
61 Remove the O-ring from the dump valve nut.
62 After removing the dump valve nut, remove the
dump valve bracket and spring from the housing
assembly by sliding them over andliftingupward.
63 Remove the spring from the dump valve
bracket.
64 RemovetheO-ring from thedump valve
bracket.
65 Removal of the check valve assemblies for
inspection or cleaning is not recommended. Once
again, normal flushing shouldbeallthat isrequired
tocleanthecheck valves.

No
12
I
\
Date of Build
Assembly
Customer Part No
(If Required)
InputRotation
Housing
Latest Date
of
I
Number of Times Unit hasbeen
Rebuilt. (Example
Shows Two Times).

66 Reposition the housing assembly onitsside.
Using a longdrift punch, remove the brake shaft seal
from the housing. Turn the housing assembly over
andremove the other brake shaft seal.
Reassembly
67
Before reassembling the Transaxle Series 850,
cleanallpartsand assemblies with clean solvent
andblow themdrywith compressedair. Inspect and
replaceallscratchedor damaged parts. Replace all
gaskets,shaftseals and O-rings. Lubricate all seals
andO-rings with petroleum jelly (Vaseline) for
retention during assembly. Freely lubricate all
bearings and finishedpartsurfaces with clean
hydraulic fluid to provide lubrication at start-up.
Housing Reassembly
68
Position the housing assembly on its side.
Lubricate and install the brake shaft seal with the
seallippointingaway fromthe housing. Press or
drive the seal into the counterbore.
69 Turnthe housing assemblyover and repeat the
same procedure for the other brake shaft seal.
70 Lubricate and install theO-ringin the groove
located in the dump valve bracket.
71 Install the spring on the dump valve bracketwith
the right anglebendof the spring pointing inward.
72 Install the spring and dump valve bracket in the
housing assembly. The spring is properly assem-
bliedwhen the longest leg points toward the check
valve assembly.
73 Lubricate and install theO-ring around the
dump valve nut.
74 Install the nutover the dump valve bracket, into
the housing assembly, making sure you do not
damage the dump valve O-ring during installation.
Torquethe dump valve nutto
150 Ib-in.
75 Install the gerotor assembly on the housing
assembly.
76 For easier assembly, rotate the gerotor's outer
ringtofully engage with the inner star's teeth. The
fully engaged sideof the gerotor assembly should
point towards the designed input rotation (CW or
CCW asnotedon the housing assembly).
Note: The designed input rotation is stamped on the
under sideof the housing assembly.
Freely lubricate the gerotor assembly with clean
hydraulic fluid to provide lubrication at start-up.
77 Allcharge pump plates have a small arrow cast
intotheouter face of the pump plate. At assembly,
this arrow must face the input rotation designated in
the housing assembly.
andthen install the pump plateoverthe gerotor
assembly. Install the four socket head screws in the
pump plate and finger tighten them only at this time.
78 Aligntherotationarrowwiththeinputrotation
79 The bottom sideof the pump rotor assembly
incorporates five drive pins.At assembly, these pins
mustbeengaged with the inner starof the charge
pump gerotor.
80 Lubricate and install the pump rotor assembly
onthe pump journal, engaging the drive pins with the
gerotor inner star.
After installation, rotate the pump rotor assembly
several timestocenter the pump plateonthe gerotor
assembly.
81 Alternately tighten the socket head screws and
torque them to
44 Ib-in.
82 Remove the rubber band from the pump rotor
assembly. Install the cam ring assembly in the
housing assembly with the flush side of the cam ring
facing outward.
83 Install the camring insert on the control shaft
pivot dowel.
84 Install the controlshaftassembly, first aligning
thecamringinsertwith the cam ring assembly and
then with the housing assembly.
85 Dropthecharge pressure relief valve ballinits
bore.
86 Install the charge pressure relief valve spring in
itsbore.
87 Install the drive in the pump rotorassembly.
88 Install the cover gasket on the housing
assembly.
CoverReassembly
89
Lubricate and install the controlshaftseal with
the seallipfacing inward. Press or drive the seal into
the counterbore.
90 Lubricateandinstall the input shaft seal with
theseal lippointing inward. Press or drive the seal
into the counterbore.
91 Press or drivetheinput shaft assembly into the
cover.
92 Install the inputshaftassembly retaining ring,
making sureitisfirmly seated in the retaining ring
groove.
93 Apply a small amountof petroleum jellytothe
buttons for retention during assembly. Install the
buttonsinthe cover assembly.
94 Install the cover assembly, carefully aligningit
with the control shaft, cam ring pivot dowel and
pump rotor drive. Be careful not to dislodge the
charge pressure relief valve fromitsbore.
95 After engaging the controlshaftand pivot dowel
in the cover assembly, carefully rotate the input shaft
to engagethe pump rotor drive. When all mating
partsare aligned and engaged, the cover assembly
shouldfallinto position on the housingassembly.
96 Install thehex flange screws in the cover
assemblyandtorque them to
125 Ib-in.
13

BrakeShaft Seal
BrakeShaft Seal
97 BeforeinstallingthePBor DL/PB assembly,
make sure the brake is in the unlocked position.
Note: Ontransaxles with the differentialIock/parking
brake option, make sure you do not move the lever
unnecessarily, especially when it is outof the
housing assembly. The differentialIock/parking
brake assembly incorporates automatic self-
adjusting brakes. Activationof the lever may cause
the brake to expand and make installationof the
assembly very difficult.
98 Installthe PBor DL/PB assemblyintothe
housing assembly. Align it with the four notches cast
in the housing assembly.
Note: Make sure the PB orDL/PB lever is pointing
or leaning towards the cover sideof the housing
assembly.
99 To ensure correct installationof the axle
housings in the housing assembly, the housing and
axle assemblies are marked with an
A and B.
The Bside of the transaxle must be assembled first.
14 100 Two different brake shaft lengths are used in
the axle housing assemblies. The shorter shaft is
always used in the
A axle housing, regardless of
whether the PB or DL/PB is used. The longer shaft
isalways used in theBaxle housing assembly.
101 Apply a small amount of petroleum jelly to the
brake shaft seal. Carefully install the longerof the
two brake shafts in theBside
of the housing
assembly.
Note: Make sure the lip of the brakeshaft seal is not
damaged during. installation.
102 The next step is to engage the brake shaft
with PB orDL/PB
. To engage the splines, align and
hold the inner disk and thrust bearing with one hand
and rotate the brake shaft slightly with the other
hand.
103 Reposition the housing assembly and
carefully install the motor rotor assembly on the
motor journal, into the housing assembly.
Note: If a rubber bandwas used to retain the ball
pistons, remove itnow.
104 The first sun gearislonger than the second
sun gear.Install the first sun gear into the motor rotor
assembly.
105 Install thetwodowel pins and the firstof three
identical gaskets on theBsideof the housing
assembly.
106 Install thewear plate, bowed side toward the
motor rotor assembly, aligning it with the two dowels.
107 Install the second of three gaskets on the wear
plate, aligning it with the dowels.
108 Installthe ring gear assembly on the housing
assembly, aligning it with the brake shaft and
dowels.
Caution: The two ring gear assemblies are
identical and can be installed on either side of
the housing assembly. However, when installing
the ring gear assembly, the side with the bearing
must face the axle housing assembly.
109
Lubricate and assemble the three planetary
gears on the primary carrier assembly.
110 Install the primary carrier assembly into the
ring gear assembly, aligning and engaging it with the
previouslyinstalledsungear.
11 1 Install the second sun gear in the primary
carrierassembly.
Note: Thepointed endof the second sun gear must
point toward the first sun gear.
11 2 Lubricate and assemble the three planetary
gearsonthe secondary carrierassembly.
113 Install the secondary carrier, aligning and
engaging the three planetary gearswiththe ring
gear assembly and second sun gear.
114 Install the brake gear on the brake shaft.
115 Two differentspacer thicknesses are used in
the axle housing assemblies. On transaxles with the
standard parkingbrake, the thicker spacer is used in
theA axle assembly and the thinner spacer is used
inthe Baxleassembly.
On transaxles with the differentialIock/parkingbrake
option, the
A axle housing assembly uses two thin
thrust washers and a thrust bearing to replace the
thick spacer.The Baxle housing assembly always
uses the thinner spacer, regardless of whether the
PB orDL/PB is used.
116 For retention during assembly, apply a small
amountof petroleum jelly to the thin spacer. Install
the spacer on the brake shaft and brakegear.
117 Install the third and final gasket on the ring
gear assembly.

Axle Reassembly andinto thecounterbore.Useano. 5 or 7 internal
118 Lubricateandinstalltheaxleshaftandthrustretainingringplierstoinstallthebearingretaining
washerintheaxlehousing.ringintheaxlehousing.
119 Positiontheaxlehousingassemblywiththe 123 Repositiontheaxlehousingassemblyand
axleendpointingdownward.Installtheinnerthrust install the largethrustwasherontheaxleshaft.
washerandaxleshaftretainingring.
124 Installthe B axlehousingassembly,aligning
120 Repositiontheaxleassemblywiththeoutputandengagingtheaxleshaftwiththesecondary
endpointingupward.Protectingthelip of theaxlecarrierassembly.
sealfromtheretainingringgrooveand keyway,
Note: To ensurecorrectinstallation,theaxle
lubricateandinstallthesealwiththelippointinghousingsaremarkedwiththeletters
A and B. Each
inwardtowardtheaxlehousing.sideofthehousingassemblyisalsomarkedwithan
121 Use a piece of hydraulic tubing (1 ½ in. O.D. x 6 Aor B. Make Sure the axle housings are correctly
in.long),topressthesealintothecounterbore.assembledwiththecorrespondinglettersonthe
122 Press the sealed bearing over the axle shaft, housing assembly.
125 After installing the axle housing, install the hex
flange screwsinthe housing and torque them to
125
Planetary GearSecond
SunGear First
MotorRotor Assembly
bberBandRetainer
Hydraulic Tubing
Thrust Washer
Thrust Washer
Thrust Washer

Self Tap Screw
16
Spacer
(Thick)
n

126 Reposition the housingassembly. Apply a
small amount of petroleum jellytothe brake shaft
seal. Carefully install the remaining brake shaft in the
A side of the housing assembly.
127 To align and engage the brake shaft splines,
hold the disk with one hand and rotate the brake
shaftslightly with the other hand.
128 Reposition the housing assembly and install
the remaining motor rotor assembly.
129 Install the first sun gear into the motor rotor
assembly.
130 Install thetwodowel pins and the firstof three
identical gaskets on the A sideof the housing
assembly.
131 Install thewear plate with the bowed side
facing the motor rotor assembly, aligningitwith the
twodowels.
132 Install the secondof three gaskets on the wear
plate, aligningitwith thetwodowels.
133 Install the ring gear assembly on the housing
assembly, aligningitwith the brake shaft and
Caution: When the ring gear assemblyis
installed, the side with the bearing must face the
axle housing.
134
Install the primary carrier assembly in the ring
gear by aligning and engaging
it with the previously
installed sungear.
135 Install the second sun gear in the primary
carrier assembly.
Note: The pointedendof the second sun gear must
point toward the first sun gear.
136 Install the secondary carrier, aligning and
engaging the three planetary gears with the ring
gear assembly and second sungear.
dowels.
137 Install the brake gearonthe brake shaft.
138 For retention during assembly, apply a small
amount of petroleum jellytothe thin spacer. Install
the spaceronthe brake shaft.
Differentiallock/parkingbrake optiononly, applya
small amount of petroleum jelly to the thrust washers
and bearing for retention during assembly. Install the
thrust washersandbearingonthe brake shaft.
Note: At assembly, the thrust bearing must be
positioned between thetwothrust washers.
139 Install the third and final gasket on the ring
gear assembly.
140 Install the large thrustwasher onthe axle
shaft.
141 InstalltheA axle housing assembly, aligning
and engaging the axle shaft with the secondary
carrier assembly.
142 Install thehexflange screws in the housing
andtorque themto
125 Ib-in.
143 Reposition the transaxle assembly and install
the brake cover by inserting the lever through the
dust boot.
144 Install the self tap screws in the brake cover
and torque themto
105 Ib-in.
17