Spicer AXSM-0052 User manual

Spicer® Hub
Service Manual
AXSM-0052
September 2007
Spicer® Hub

Page to Insert

1
General Information
This symbol is used throughout this
manual to call attention to procedures
where carelessness or failure to follow
specific instructions may result in
personal injury and/or component
damage.
Departure from the instructions,
choice of tools, materials and recom-
mended parts mentioned in this
publication may jeopardize the per-
sonal safety of the service technician
or vehicle operator.
WARNINGS: Failure to follow indi-
cated procedures creates a high risk
of personal injury to the servicing
technician.
CAUTION: Failure to follow indicated
procedures may cause component
damage or malfunction.
NOTE: Additional service information not
covered in the service procedures.
Tip: Helpful removal and installation
procedures to aid in the service of this unit.
!
!
!
Always use genuine Spicer replacement parts.
IMPORTANT NOTICE
as an example of the types of tools and materials
recommended for use and should not be considered an
endorsement. Equivalents may be used.
Every effort has been made to ensure the accuracy of all information in this guide. However, Spicer Axle and
Brake Division makes no expressed or implied warranty or representation based on the enclosed information.
Any errors or omissions may be reported to:
Marketing Services, Dana Corporation, PO Box 321, Toledo, Ohio 43697-0321
The description and specifications contained in this
service publication are current at the time of printing.
Dana Corporation reserves the right to discontinue or
modify its models and/or procedures and to change
specifications at any time without notice.
Any reference to brand name in this publication is made

2
Contents
General Information
General Information
Important Notice....................................................................................................................................................................................... 1
HS 415 SM Model
Changing Oil ............................................................................................................................................................................................. 3
Service Instructions .................................................................................................................................................................................. 4
Removal of hub on vehicle ....................................................................................................................................................................... 5
Disassemble Planet Carrier Unit ............................................................................................................................................................... 6
Disassembling Planetary Ring Gear Unit .................................................................................................................................................. 6
Removing Hub Unit .................................................................................................................................................................................. 7
Assembly .................................................................................................................................................................................................. 8
Hub Bearing Setting.................................................................................................................................................................................. 9
Sub Assembly - Planet Carrier Unit ........................................................................................................................................................ 10
HS 515 SP, HD 519 SP, HS 716SQ, HD 719SQ
Hub Reduction Units .............................................................................................................................................................................. 12
Removal of hub on Vehicle ..................................................................................................................................................................... 13
Disassemble Planet Carrier Unit ............................................................................................................................................................. 14
Disassembling Planetary Ring Gear Unit ................................................................................................................................................ 14
Removing Hub Unit ................................................................................................................................................................................ 15
Assembly ................................................................................................................................................................................................ 16
Hub Bearing Setting................................................................................................................................................................................ 17
Sub Assembly - Planet Carrier Unit ........................................................................................................................................................ 18
Parts List for HS 515 SP, HD 519 SP Hub Unit
Assembly No. 964464 ............................................................................................................................................................................ 20
Assembly No. 964465 ............................................................................................................................................................................ 22

3
Changing oil
Note: New and reconditioned axles are greased
where necessary, but are not filled with oil when then
leave the manufacturing facility.
Drain and refill oil on new units after the first month
or 100 hours while axle is still warm, then at intervals
of 1,000 hours or 6 months.
Oil Level
Check oil levels monthly or every 100 hours following
the procedure below.
1. Vehicle must be on level ground.
2. Remove differential oil filter plug and check oil
level. Add oil if necessary.
Warning: Never work under a vehicle supported
by only a jack. Always support vehicle with
stands. Block the wheels and make sure the
vehicle will not roll before releasing the brakes.
Note: Spicer recommends cleaning the magnetic
filler plug, drain plugs, and cleaning the breather.
Note: There is no oil sealing between the drive head
and hubs. Drive head and Hub oil levels should be on
the axle center line. When refilling add amounts
shown below to hubs then drive head and let sit in
axle for 15 minutes before checking levels at all
points. Add oil as necessary until level after settling
period.
Always check final oil level at drive head.
3. Raise the wheels off the ground and support with
proper stands.
4. Rotate each hub so the bottom of the hub filler/
level plugs are on the axle center line (level with
the differential filler plug).
5. Unscrew the plugs and check that oil level is at
the bottom of plug holes. If not, add oil to each
hub through plug holes then check level in drive
head.
6. When level is correct, refit and tighten all filler/
level plugs.
Approximate capacities:
HS 415 SM - 6 pints (3.5 liters) per hub.
HS 515 SP - 8 pints (4.5 liters) per hub.
HP 519 SP - 8 pints (4.5 liters) per hub.
HS 716 SQ - 8 pints (4.5 liters) per hub.
HD 719 SQ - 8 pints (4.5 liters) per hub.
Recommended oil MIL-L-2105D.
!
HS 415 SM Model

4
Service Instructions For HS415SM Model
Description
The hub gears are driven by a floating sun pinion
which is splined to a drive shaft. The gear meets with
three planet gears mounted in a carrier which is
bolted to the hub. The ring gear is two pieces splined
to the axle spindle, it also serves to support the outer
hub bearing cone. The hub is fully floating, running
on a taper roller bearing which is secured and ad-
justed by a nut locking ring.
The unit is mounted on a removable spindle, bolted to
the axle housing.
Routine Maintenance
Service the vehicle every six months, checking the
following:
1. General condition of nuts, bolts and housing
2. Joints and seals for signs of leakage.
Tooling/Sealant List
Spring balance to read to 25 lbs. (12kg).
Hub nut spanner - E537.
Assembly tooling - E539.
Hub oil seal fitting tool - E540.
Loctite No. 277 locking compound.
Loctite No. 515 liquid gasket.
Loctite No. 609 sealing compound.
Caution: Viton O-rings and seals (flouro-elas-
tomers) - safety hazards.
Viton material used in oil seals and O-rings
produces a highly corrosive acid (hydroflouric)
when subjected to temperatures above 315° C.
This acid is very toxic and should not be come in
contact with. We recommend the following
procedure when it is necessary to inspect any
equipment that has been subjected to high
temperature or fire.
a. Visually inspect any gaskets or seals that have
suffered from heat; they will appear black and
sticky.
b. If this condition exists, do not handle.
c. Confirm material composition. Any flouro-
elestomer (Viton, Flourel or Tecomoflon) should
be considered dangerous but natural rubber and
nitrile are nonhazardous.
d. If flouroelastomer seals have been used, the
affected area must be decontaminated before
continuing.
e. Disposable heavy duty gloves must be worn and
the affected area decontaminated by washing
thoroughly with limewater (calcium hydroxide
solution).
f. Discard any clothing contaminated after use.
Note: Burning of discarded items is NOT RECOM-
MENDED, except in an approved incineration process
where gaseous products are treated by alkaline
scrubbing.
!
HS 415 SM Model

5
Removal of hub on vehicle
Note: Clean all parts in suitable cleaning agent.
Draining the oil
• Before attempting to remove road wheels, drive
vehicle onto a level surface. Drain when lube is
at normal operating temperature.
• Block the wheels and make sure the vehicle will
not roll.
• Loosen but do not remove wheel nuts when
wheels are still on the ground.
• Raise axle and support with suitable stands.
• Remove wheel nuts and washers.
• Remove wheels.
Note: As there is no oil sealing between drive heads
and hubs, oil must be drained from all three units
before overhaul.
• Place containers under differential and both hubs.
• Remove differential oil filler plug and drain bolt
and oil from differential.
• Rotate hubs to bring carrier drain setscrews to
their lowest point.
• Remove hub filler/level plug.
• Remove drain setscrews and washers to drain oil
from hubs.
• When oil in completely drained, remove drip tray
and support hub adequately.
• Replace drain setscrews and washers and hub
filler/level plug.
• Replace differential drain bolt.
HS 415 SM Model

6
Disassemble Planet Carrier Unit
•Unscrew and remove carrier capscrews and
washers.
•Using chain hoist, carefully remove planet carrier
assembly from axle. Place on bench or press and
support in an upright position with outboard end
of carrier facing down. Remove planet pin by
first removing set screw and then press pin down
(outboard) and out of carrier.
•Carefully remove planet gear.
•Repeat operations for other planet gear assem-
blies.
•Remove and discard O-rings from planet pins.
•If thrust button needs changing, pull out of its
position in planet carrier inner face.
•Remove sealing compound from planet carrier
and hub mating faces using Loctite Chisel Gasket
Remover or by carefully scraping sealant from
faces.
ax-0138
EXTRACTION
BOLTS
16
11
12
HS 415 SM Model
Disassembling Planetary Ring Gear Unit
•Pull out axle shaft complete with sun gear, snap
ring and washer from axle spindle.
•Remove snap ring from groove in axle shaft then
pull off sun gear and thrust washer.
•Remove lockrings and hub retaining nut from
axle spindle.
•Insert extraction bolts into holes provided in ring
gear and tighten evenly to pull ring gear assem-
bly, complete with outer hub bearing cone from
axle spindle.
•Remove retraining ring then separate ring gear
from ring gear carrier.
•Remove outer hub bearing cone from its position
on ring gear carrier if required.

7
Removing Hub Unit
•Using suitable support, carefully remove hub
assembly from axle spindle and place on work
bench, outer end down.
•Carefully remove oil seal outer half from hub then
lift inner hub bearing cone.
•Inspect oil seal part for wear and damage.
•Check hub bearing cups for wear and damage. If
necessary, remove cups from hub using soft
metal drift pin.
Note: If either bearing cup or cone needs replacing,
a new cup and cone must be fitted.
•Inspect oil seal half parts and housing for wear
and damage.
Note: If any seal assembly parts need to be replaced,
a complete new assembly must be fitted.
•Inspect condition of hub spacer, removing for
replacement if required.
Hub/Axle Stub subassembly
•Heat oil seal housing until hand hot (120° C,
248°F max.), then push into position on axle
stub.
•When oil seal housing has cooled, push bearing
spacer into position on axle stub.
•Fill bearing cone with grease using a bearing
packer or manually kneading grease between
rollers, race and cage, then push into position on
axle stub.
•Fit inner and outer hub bearing cups into position
on hub.
HS 415 SM Model

8
Assembly
•Remove hub oil seal assembly from package, fit
one half into hub and other into inner seal
housing as follows:
a. Do not remove seals from package until
immediately before installation. This protects
the super-finished seal faces from damage
and contamination.
b. Hub and oil seal housing must be clean.
c. Install face seal by means of special fitting
tool number E541. Pressure is applied
directly via the elastromeric part. For ease of
assembly moisten the bore and O-rings with
a water/spirit mixture (NOT OIL).
d. Press seal ring into hub/ seal housing using
even pressure on opposite sides of tool.
Ensure that the housing/hub surface 'A' lies
parallel to the seal face 'B'. The O-rings must
not be pinched in the hub/housing or partially
out of the bore.
•Assemble ring gear and ring gear carrier together
and secure with ring gear retainer.
•Press hub outer bearing cone onto ring gear
carrier journal.
•Clean metal surfaces with a lint free cloth, apply a
thin film of clean oil to metal faces.
Note: Keep oil off of other surfaces.
•Support hub with chain hoist, and carefully push
into position on axle spindle.
•Assemble guide tube from assembly tooling E
539 onto axle spindle, carefully pushing into
position on axle spindle. Use bumper or soft
metal hammer from assembly tooling to ensure
ring gear is driven on completely.
•Fit hub bearing nut and tighten hand tight.
•Remove chain hoist.
AAA
BBB
Housing / hub
Correct Incorrect
HS 415 SM Model

9
Hub Bearing Setting
•Torque hub nut to 190-210 lbs. ft. (258-285
N•m).
Note: The hub should be fully rotated several times
in both directions to ensure the hub bearings are
correctly seated.
•Secure a cord to a wheel stud and wrap cord
around hub, fasten free end to a spring balance.
•Apply a steady pull to spring balance and note
reading, ignoring the large force initially required
to start rotation.
•The correct spring balance reading should be
between 6 to 10 lbs. (2.7 to 4.5 kg) correspond-
ing to a hub rolling torque of 3-5 lbs. ft. (4-7
N•m).
AX0139
16
12
10
SPRING
GUAGE
WRAP CORD
AROUND HUB
•If spring balance reading is outside limits stated,
adjust hub nut and check again, continuing until
correct figure is obtained.
•When hub setting is correct, fit lockrings, then
retaining ring.
Note: To align slots in nut with corresponding slots
in axle spindle, do not back off. Continue to tighten
nut until slots are aligned.
HS 415 SM Model

10
Sub Assembly - Planet Carrier Unit
•Place planet carrier with large diameter face up
with planet gear access hole facing the mechanic.
•Smear clean grease into bore of one planet gear.
•Insert planet gear and thrust washers into planet
carrier.
•Lightly oil O-ring and O-ring grove in planet pin
with clear gear oil then fit O-ring into planet
carrier.
•Insert planet pin, O-ring up into planet carrier and
through planet gear making sure to line up flat on
planet pin with hole in planet carrier for set
screw.
•Clean set screw threads with solvent then apply
Loctite 275. Drive screw into hole in planet
carrier and tighten to a torque of 22-27 lbs. ft.
(30-36 N•m) to secure planet pin assembly.
•Repeat operations for other two planet gear
assemblies.
•Stake screw in four places to lock in position.
•Coat thrust button bore, in planet carrier, with
Loctite 275 then fit thrust button.
Fitting Planet Carrier Unit/Final Assembly
•Fit thrust washer, then sun gear onto axle shaft,
then fit snap ring to secure.
•Apply clean gear oil to axle shaft inner splines.
Insert axle shaft assembly into axle spindle until
axle shaft splines are engaging with differential
gear splines.
•Coat hub mating face of planet carrier with
Loctite 515 joining planet carrier unit with hub
using chain hoist if required. Ensure planet gear
teeth mesh with sun gear.
•Fit planet carrier capscrews and hardened
washers, tighten to a torque of 91-101 lbs. ft.
(123-137 N•m).
•Fit drain capscrew and washer, tighten to a torque
of 145-161 lbs. ft. (196-218 N•m).
•Fit planet cover plate, secure with capscrew,
tightening to 66-72 lbs. ft. (89-98 N•m).
•Rotate both hubs until oil filler/level plug holes
are on axle center line, fill with oil until level with
bottom of level hole thread.
•Fill drive head with oil.
•Allow oil to settle for 15 minutes, then check oil
level again in both hubs and differential.
•Refit then tighten the filler/level plug then drive
head filler plug.
•Refit road wheels securing with spherical wash-
ers and wheel nuts. Remove supports and lower
vehicle to ground. Tighten wheel nuts to a torque
of 400-430 lbs. ft. (542-583 N•m).
Note: The wheel nuts should be checked and
tightened if necessary, shortly after initial operation.
Tightening Torque Table
For Type HS 415 SM Hub
Item
No. Description Torque
1 Planet carrier cover capscrew 66-72 lbs. ft
(89-98 N•m)
6 Planet carrier set screw 22-27 lbs. ft.
(30-36 N•m)
10 Hub bearing retaining nut 190-210 lbs. ft.
(258-285 N•m)
14 Wheel nuts 400-430 lbs. ft.
(542-583 N•m)
27 Axle spindle retaining bolt 390-410 lbs. ft.
(529-556 N•m)
37 Planet carrier capscrew 91-101 lbs. ft.
(123-137 N•m)
39 Planet carrier drain capscrews 145-161 lbs. ft
(196 - 218 N•m)
HS 415 SM Model

11
TYPE RP12
HUB REDUCTION UNIT
18
14 15
17
16
29
1
2
11
12
13
34
4
38
32
29A
28
28A
30
19
20
21 22
23
25
27 26
24
31 7
8910
33
6
5
39 37 36
35
AX01
HS 415 SM
HS 415 SM Model

12
Service Instructions for HS515SP, HD519SP,
HS716SQ, HD719SQ
Hub Reduction Units
Description
The hub gears are driven by a floating sun pinion
which is splined to a drive shaft. The sun gear meets
with three planet gears mounted to the carrier which
is bolted to the hub. The ring gear is two pieces and
splined to the axle spindle, it also supports the outer
hub bearing cone. The hub is fully floating, running
on taper roller bearings secured and adjusted by a nut
with locking ring.
The unit is connected with a removable spindle bolted
to the axle casing.
Routine Maintenance
Service vehicle every 6 months, check the following:
1. General condition of nuts, bolts and axle casing.
2. Joints / oil seals for signs of leakage.
Tooling/Sealant List
Spring balance to read 25 lbs. (12 kg.)
Outer bearing cone bumper - E534
Hub guide sleeve - E535
Ring gear carrier assembly tooling - E536
Hub nut spanner - E538
Hub oil seal fitting tool - E541
Loctite No. 277 locking compound
Loctite No. 515 liquid gasket
Loctite No. 609 sealing compound
Vision O-rings and seals (flour-elastomers) -
safety hazards
Caution: Viton O-rings and seals (flouro-elas-
tomers) - safety hazards. Viton material used in
oil seals and O-rings produces a highly corrosive
acid (hydroflouric) when subjected to tempera-
tures above 315° C. This acid is very toxic and
should not be come in contact with. We recom-
mend the following procedure when it is neces-
sary to inspect any equipment that has been
subjected to high temperature or fire.
a. Visually inspect any gaskets or seals that
have suffered from heat; they will appear
black and sticky.
b. If this condition exists, do not handle.
c. Confirm material composition. Any flouro-
elestomer (Viton, Flourel or Tecomoflon)
should be considered dangerous but natural
rubber and nitrile are nonhazardous.
d. If flouroelastomer seals have been used, the
affected area must be decontaminated before
continuing.
e. Disposable heavy duty gloves must be worn
and the affected area decontaminated by
washing thoroughly with limewater (calcium
hydroxide solution).
f. Discard any clothing contaminated after use.
Note: Burning of discarded items is NOT RECOM-
MENDED, except in an approved incineration process
where gaseous products are treated by alkaline
scrubbing.
HS 515 SP, HD 519 SP,
HS716SQ, HD 719 SQ Models

13
Removal of hub on vehicle
Note: Clean all parts in suitable cleaning agent.
Draining the oil
•Before attempting to remove road wheels, drive
vehicle onto a level surface. Drain when lube is
at normal operating temperature.
•Block the wheels and make sure the vehicle will
not roll.
•Loosen but do not remove wheel nuts when
wheels are still on the ground.
•Raise axle and support with suitable stands.
•Remove wheel nuts and washers.
•Remove wheels.
Note: As there is no oil sealing between drive heads
and hubs, oil must be drained from all three units
before overhaul.
•Place containers under diff. and both hubs.
•Remove diff. oil filler plug and drain bolt and oil
from diff.
•Rotate hubs to bring carrier drain setscrews to
their lowest point.
•Remove hub filler/level plug.
•Remove drain setscrews and washers to drain oil
from hubs.
•When oil in completely drained, remove drip tray
and support hub adequately.
•Replace drain setscrews and washers and hub
filler/level plug.
•Replace diff. drain bolt.
AX0140
34
35
4
DRAIN
16
HS 515 SP, HD 519 SP,
HS716SQ, HD 719 SQ Models

14
Disassemble Planet Carrier Unit
•Unscrew and remove carrier capscrews and
washers.
•Using chain hoist, carefully remove planet carrier
assembly from axle. Place on bench or press and
support in an upright position with outboard end
of carrier facing down. Remove planet pin by
first removing set screw and then press pin down
(outboard) and out of carrier.
•Carefully remove planet gear.
•Repeat operations for other planet gear assem-
blies.
•Remove and discard O-rings from planet pins.
•If thrust button needs changing, pull out of its
position in planet carrier inner face.
•Remove sealing compound from planet carrier
and hub mating faces using Loctite Chisel Gasket
Remover or by carefully scraping sealant from
faces.
ax-0138
EXTRACTION
BOLTS
16
11
12
HS 515 SP, HD 519 SP,
HS716SQ, HD 719 SQ Models
Disassembling Planetary Ring Gear Unit
•Pull out axle shaft complete with sun gear, snap
ring and washer from axle spindle.
•Remove snap ring from groove in axle shaft then
pull off sun gear and thrust washer.
•Remove lockrings and hub retaining nut from
axle spindle.
•Insert extraction bolts into holes provided in
annulus and tighten evenly to pull ring gear
assembly, complete with outer hub bearing cone
from axle spindle.
•Remove retraining ring then separate ring gear
from ring gear carrier.
•Remove outer hub bearing cone from its posi-
tion on ring gear carrier if required.

15
Removing Hub Unit
•Using suitable support, carefully remove hub
assembly from axle spindle and place on work
bench, outer end down.
•Carefully remove oil seal outer half from hub then
lift inner hub bearing cone.
•Inspect oil seal part for wear and damage.
•Check hub bearing cups for wear and damage. If
necessary, remove cups from hub using soft
metal drift pin.
Note: If either bearing cup or cone needs replacing,
a new cup and cone must be fitted.
•Inspect oil seal half parts and housing for wear
and damage.
Note: If any seal assembly parts need to be replaced,
a complete new assembly must be fitted.
•Inspect condition of hub spacer, removing for
replacement if required.
Hub/Axle Stub subassembly
•Heat oil seal housing until hand hot (120° C,
248°F max.), then push into position on axle
stub.
•When oil seal housing has cooled, push bearing
spacer into position on axle stub.
•Fill bearing cone with grease using a bearing
packer or manually kneading grease between
rollers, race and cage, then push into position on
axle stub.
•Fit inner and outer hub bearing cups into position
on hub.
HS 515 SP, HD 519 SP,
HS716SQ, HD 719 SQ Models

16
Assembly
•Remove hub oil seal assembly from package, fit
one half into hub and other into inner seal
housing as follows:
a. Do not remove seals from package until
immediately before installation. This
protects the super-finished seal faces from
damage and contamination.
b. Hub and oil seal housing must be clean.
c. Install face seal by means of special fitting
tool number E541. Pressure is applied
directly via the elastromeric part. For ease
of assembly moisten the bore and O-rings
with a water/spirit mixture (NOT OIL).
d. Press seal ring into hub/ seal housing using
even pressure on opposite sides of tool.
Ensure that the housing/hub surface 'A' lies
parallel to the seal face 'B'. The O-rings
must not be pinched in the hub/housing or
partially out of the bore.
•Assemble ring gear and ring gear carrier to-
gether and secure with ring gear retainer.
•Press hub outer bearing cone onto ring gear
carrier journal.
•Clean metal surfaces with a lint free cloth, apply
a thin film of clean oil to metal faces.
Note: Keep oil off of other surfaces.
•Support hub with chain hoist, and carefully push
into position on axle spindle.
•Assemble guide tube from assembly tooling E
539 onto axle spindle, carefully pushing into
position on axle spindle. Use bumper or soft
metal hammer from assembly tooling to ensure
annulus is driven on completely.
•Fit hub bearing nut and tighten hand tight.
•Remove chain hoist.
AAA
BBB
Housing / hub
Correct Incorrect
HS 515 SP, HD 519 SP,
HS716SQ, HD 719 SQ Models

17
Hub Bearing Setting
•Torque hub nut to 238-263 lbs. ft. (323-357
N•m).
Note: The hub should be fully rotated several times
in both directions to ensure the hub bearings are
correctly seated.
•Secure a cord to a wheel stud and wrap cord
around hub, fasten free end to a spring balance.
•Apply a steady pull to spring balance and note
reading, ignoring the large force initially required
to start rotation.
•The correct spring balance reading should be
between 8.5 to 12 lbs. (3.8 to 5.4 kg) corre-
sponding to a hub rolling torque of 7-9 lbs. ft. (9-
12 N•m).
•If spring balance reading is outside limits stated,
adjust hub nut and check again, continuing until
correct figure is obtained.
•When hub setting is correct, fit lockrings, then
retaining ring.
Note: To align slots in nut with corresponding slots
in axle spindle, do not back off. Continue to tighten
nut until slots are aligned.
AX0139
16
12
10
SPRING
GUAGE
WRAP CORD
AROUND HUB
HS 515 SP, HD 519 SP,
HS716SQ, HD 719 SQ Models

18
•Refit then tighten the filler/level plug then drive
head filler plug.
•Refit road wheels securing with spherical wash-
ers and wheel nuts. Remove supports and lower
vehicle to ground. Tighten wheel nuts to a torque
of 400-430 lbs. ft. (542-583 N•m).
Note: The wheel nuts should be checked and
tightened if necessary, shortly after initial operation.
Tightening Torque Table for Type
HS 515 SP, HD 519 SP,
HS 716 SQ, HD 719 SQ
Item
No. Description Torque
1 Planet carrier cover capscrew 66-71 lbs. ft.
(89-98 N•m)
9 Planet carrier set screw 22-27 lbs. ft.
(30-36 N•m)
17 Hub bearing retaining nut 238-263 lbs. ft.
(323-357 N•m)
22 Wheel nuts 400-420 lbs. ft.
(542-583 N•m)
34 Axle spindle retaining bolt 390-410 lbs. ft.
(529-556 N•m)
38 Planet carrier capscrew 91-101 lbs. ft.
(123-137 N•m)
39 Planet carrier drain capscrews 145-151 lbs. ft.
(196-218 N•m)
Sub Assembly - Planet Carrier Unit
•Place planet carrier with large diameter face up
with planet gear access hole facing the mechanic.
•Smear clean grease into bore of one planet gear.
•Insert planet gear and thrust washer into planet
carrier.
•Lightly oil O-ring and O-ring grove in planet pin
with clear gear oil then fit 'O'ring into planet pin.
•Insert planet pin, O-ring up into planet carrier and
through planet gear making sure to line up flat on
planet pin with hole in planet carrier for set
screw.
•Clean set screw threads with solvent then apply
Loctite 275. Drive screw into hole in planet
carrier and tighten to a torque of 22-27 lbs. ft.
(30-36 N•m) to secure planet pin assembly.
•Repeat operations for other two planet gear
assemblies.
•Stake screw in four places to lock in position.
•Coat thrust button bore, in planet carrier, with
Loctite 275 then fit thrust button.
Fitting Planet Carrier Unit/Final Assembly
•Fit thrust washer, then sun gear onto axle shaft,
then fit snap ring to secure.
•Apply clean gear oil to axle shaft inner splines.
Insert axle shaft assembly into axle spindle until
axle shaft splines are engaging with differential
gear splines.
•Coat hub mating face of planet carrier with
Loctite 515 joining planet carrier unit with hub
using chain hoist if required. Ensure planet gear
teeth mesh with sun gear.
•Fit planet carrier capscrews and hardened
washers, tighten to a torque of 91-101 lbs. ft.
(123-137 N•m).
•Fit drain capscrew and washer, tighten to a torque
of 145-161 lbs. ft. (196-218 N•m).
•Fit planet cover plate, secure with capscrew,
tightening to 66-72 lbs. ft. (89-98 N•m).
•Rotate both hubs until oil filler/level plug holes
are on axle center line, fill with oil until level with
bottom of level hole thread.
•Fill drive head with oil.
•Allow oil to settle for 15 minutes, then check oil
level again in both hubs and diff.
HS 515 SP, HD 519 SP,
HS716SQ, HD 719 SQ Models