J&M SpeedTender 500ST User manual
Manual Standards
J. & M. MFG. Co., Inc.
P.O. Box 547 Ft. Recovery, OH 45846
PH: (419) 375-2708
www.jm-inc.com
Revision 7.8.2013
O P E R A T O R’ S M A N U A L
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TO THE DEALER:
Read manual instructions and safety rules. Make sure all items on the Dealer’s Pre-Delivery and Delivery Check
Lists in the Operator’s Manual are completed before releasing equipment to the owner.
The dealer must complete the Warranty Registration Card attached to the front inside cover of this manual and re-
turn to J. & M. Mfg. Co., Inc. at the address indicated on the card. Warranty claims will be denied if the Warranty
Registration Card has not been completed and returned.
EXPRESS WARRANTY:
J. & M. Mfg. Co. Inc. warrants against defects in construction or materials for a period of ONE year. We reserve
the right to inspect and decide whether material or construction was faulty or whether abuse or accident voids our
guarantee.
Warranty service must be performed by a dealer or service center authorized by J. & M. Mfg. Co. Inc. to sell and/
or service the type of product involved, which will use only new or re-manufactured parts or components fur-
nished by J. & M. Mfg. Co. Inc. Warranty service will be performed without charge to the purchaser for parts
or labor based on the Warranty Labor Times schedule. Under no circumstance will allowable labor times extend
beyond the maximum hours indicated in the Warranty Labor Times schedule for each warranty procedure. The
purchaser will be responsible, however, for any service call and/or transportation of the product to and from the
dealer or service center’s place of business, for any premium charged for overtime labor requested by the purchas-
er, and for any service and/or maintenance not directly related to any defect covered under the warranty. Costs
associated with equipment rental, product down time, or product disposal are not warrantable and will not be
accepted under any circumstance.
Each warranty term begins on the date of product delivery to the purchaser. Under no circumstance will warranty
be approved unless (i) the product warranty registration card has been properly completed and submitted to the
equipment manufacturer, and (ii) a warranty authorization number has been issued by the equipment manufactur-
er. This Warranty is eective only if the warranty registration card is returned within 30 days of purchase.
This warranty does not cover a component which fails, malfunctions or is damaged as a result of (i) improper
modication or repair, (ii) accident, abuse or improper use, (iii) improper or insucient maintenance, or (iv) nor-
mal wear or tear. This warranty does not cover products that are previously owned and extends solely to the origi-
nal purchaser of the product. Should the original purchaser sell or otherwise transfer this product to a third party,
this Warranty does not transfer to the third party purchaser in any way. J. & M. Mfg. Co. Inc. makes no warranty,
express or implied, with respect to tires or other parts or accessories not manufactured by J. & M. Mfg. Co. Inc.
Warranties for these items, if any, are provided separately by their respective manufacturers.
THIS WARRANTY IS EXPRESSLY IN LIEU OFALL OTHER WARRANTIES OR CONDITIONS, EX-
PRESS, IMPLIED OR STATUTORY, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABIL-
ITY OR FITNESS FOR PARTICULAR PURPOSE.
In no event shall J. & M. Mfg. Co. Inc. be liable for special, direct, incidental or consequential damages of any
kind. The exclusive remedy under this Warranty shall be repair or replacement of the defective component at J. &
M. Mfg. Co. Inc.’s option. This is the entire agreement between J. & M. Mfg. Co. Inc. and the Owner about war-
ranty and no J. & M. Mfg. Co. Inc. employee or dealer is authorized to make any additional warranty on behalf of
J. & M. Mfg. Co. Inc.
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The manufacturer reserves the right to make product design and material changes at any time without notice.
They shall not incur any obligation or liability to incorporate such changes and improvements in products previ-
ously sold to any customer, nor shall they be obligated or liable for the replacement of previously sold products
with products or parts incorporating such changes.
SERVICE:
The equipment you have purchased has been carefully manufactured to provide dependable and satisfactory use.
Like all mechanical products, it will require cleaning and upkeep. Lubricate the unit as specied. Observe all
safety information in this manual and safety signs on the equipment.
For service, your authorized J. & M. dealer has trained mechanics, genuine J. & M. service parts, and the neces-
sary tools and equipment to handle all your needs.
Use only genuine J. & M. service parts. Substitute parts may void the warranty and may not meet standard re-
quired for safe and satisfactory operating. Record the model number and serial number of your equipment in the
spaces provided:
Serial #_______________ Purchase Date: _______________ Purchased From: ____________________
Please provide this information to your dealer to obtain the correct parts:
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General Information.....................................................................................
To e Owner....................................................................................................
Safety Rules........................................................................................................
Operations...................................................................................................
Service.........................................................................................................
Troubleshooting........................................................................................
Bolt Torque Specications.............................................................................
Scales...............................................................................................................
6 Spool Valve..............................................................................................
Chassis........................................................................................................
Boom Arm.......................................................................................................
Hydraulic Door................................................................................................
Conveyor....................................................................................................
Roll Tarp.....................................................................................................
Routing.......................................................................................................
Auto Scale Shut-O Directions....................................................................
10K LB Torsion Axle......................................................................................
Miscellaneous..................................................................................................
2-3
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7
8-16
17-28
29-31
32
33
34-35
36-37
38
39
40-41
42-43
44-47
48
49
50
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TO THE OWNER:
The purpose of this manual is to assist you in operating and maintaining your Speed Tender in a safe manner. Read
it carefully. It furnishes information and instructions that will help you achieve years of dependable performance
and help maintain safe operating conditions. If this machine is used by an employee or is loaned or rented, make
certain that the operator(s), prior to operating:
1. Is instructed in safe and proper use.
2. Review and understands the manual(s) pertaining to this machine.
Throughout this manual, the term IMPORTANT is used to indicate that failure to observe can cause damage to
equipment. The terms CAUTION, WARNING and DANGER are used in conjunction with the Safety-Alert Sym-
bol. When you see this symbol, carefully read the message that follows and be alert to the possibility of personal
injury or death.
This Safety-Alert symbol indicates a hazard and means
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Indicates an imminently hazardous situation that, if not avoided, will result in death or
serious injury.
Indicates a potentially hazardous situation that, if not avoided, could result in death or seri-
ous injury, and includes hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, may result in minor or mod-
erate injury.
Indicates that failure to observe can cause damage to equipment.
Indicates helpful information.
DANGER:
WARNING:
CAUTION:
IMPORTANT:
NOTE:
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Safety is a primary concern in the design and manufacture of our products. Unfortunately, our eorts to pro-
vide safe equipment can be erased by an operator’s single careless act. In addition, hazard control and accident
prevention are dependent upon the awareness, concern, judgment, and proper training of personnel involved in
the operation, transport, maintenance and storage of equipment.
Make certain that the operator(s), prior to operating is instructed in safe and proper use and reviews and under-
stands the manual(s) pertaining to this machine. Also make certain that the operator(s) reviews and understands
the operator’s manual of the tow vehicle prior to hooking up or operating the Speed Tender.
Read this manual before you operate this machine. If you do not understand any part of this manual, or need
more information, contact the manufacturer or your authorized dealer.
Safety Rules Next Page
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1. Understand that your safety and the safety of other persons are measured by how you service and operate
this machine. Know the positions and functions of all controls before you try to operate them. Make sure
to check all controls in a safe area before starting your work.
2. The safety information given in this manual does not replace safety codes, federal, state, or local laws.
Make certain your machine has the proper equipment as designated by local laws and regulations.
3. A frequent cause of personal injury or death is from persons falling o equipment and being run over. Do
not permit persons to ride on this machine.
4. Secure Speed Tender safety chain to towing vehicle before transporting. Do not transport without safety
chains being attached to tow vehicle.
5. Make sure that the conveyor/auger is fastened securely to the boom arm, and the boom arm is resting on the
boom arm support with lynch pin in place before transport.
6. Use good judgment when transporting Speed Tender on a highway. Maintain complete control at all times.
Regulate speed to road conditions. Do not transport unit with rear compartment full and front compartment
empty. The unit may not be properly balanced, osetting the tongue weight of the Speed Tender.
7. When transporting on public roads, the conveyor must be in the forward position to meet with lighting and
visibility marking requirements.
8. Do not travel faster than 10 m/h. during o highway travel. Drive slowly over rough ground, hill sides,
and around curves to avoid tipping. Use extreme care when operating close to ditches, fences, or on hill
sides.
9. Use care when moving or operating Speed Tender near electric lines as serious injury or death can result
from contact.
10. Never adjust, service, clean, or lubricate Speed Tender until all power is shut o and the battery is
disconnected. Keep all safety shields in place.
11. Carbon monoxide can cause severe nausea, fainting, or death. Do not operate engine in closed or conned
work area.
12. Explosive fuel can cause res and severe burns. Stop engine before lling fuel tank.
13. Hot parts can cause severe burns. Do not touch engine while operating or just after stopping.
14. Hydraulic oil leaking under pressure can penetrate skin and cause infection or other injury.
15. To prevent personal injury when working with hydraulic power unit:
a. Relieve all pressure before disconnecting uid lines.
b. Before applying pressure, make sure all connections are tight and components are in good
condition.
c. Never use your hand to check for suspected leaks under pressure. Use a piece of cardboard or wood
for this purpose.
16. Make sure that everyone is clear of equipment before applying power or moving the Speed Tender.
17. Before lling the Speed Tender, make certain that no one is inside the grain tanks. Never allow children or
anyone in, near, or on the Speed Tender during transport or during loading and unloading of grain. Be
aware that moving grain is dangerous and can cause entrapment, resulting in severe injury or death
by suocation.
18. Before unhooking the Speed Tender from the transport vehicle, be sure to properly block the wheels to
prevent the Speed Tender from moving.
19. When using the Conveyor Swing option be sure to stand clear of the swinging boom arm at all times.
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1.1 Preparing the Towing Vehicle
Before towing the Speed Tender, refer to towing vehicle’s owner’s manual for information concerning hitch
capacities, hitch adjustments, and tire ination.
Towing vehicle must be equipped with proper electric braking components.
NOTE: The Speed Tender is equipped with LED lights. The towing vehicle may require a
asher upgrade for lights to operate properly.
Do not exceed towing vehicles GVWR (Gross Vehicle Weight Rating) or GCWR (Gross Combination Weight
Rating), or the maximum hitch load.
1.2 Preparing Speed Tender
Hydraulics: Check routing of all hydraulic hoses. Hoses should not be kinked, twisted or rubbing against sharp
edges. Check all hoses and ttings for hydraulic leaks. Tighten and /or repair or replace as required.
Lubrication: Lubricate Speed Tender as outlined in Service section 2.1. Refer to engine manual for proper uid
levels in engine.
Tires/Wheels: Check tire pressures and maintain at recommended operating pressure. It is important to check
wheel nut/bolts for proper torque as recommended. You can nd proper tire pressure and wheel torque located in
service manual section.
1.3 Connecting Speed Tender to the Towing Vehicle
WARNING: Do not stand between the Speed Tender and tow vehicle when hooking up.
The Speed Tender comes with a Gooseneck Frame. The Gooseneck Frame can feature either a
2-5/16” ball coupler or a 5th Wheel hook up.
1. Back tow vehicle up to Speed Tender.
2. Align the vehicle’s ball with the coupler on the Speed Tender.
3. Lift tongue latch lever.
4. Lower jack to set Speed Tender coupler down on ball.
5. Latch coupler. Check to make sure that coupler is securely latched.
6. Raise jack.
7. Attach 7-way plug to tow vehicle. Check the length of the Speed Tender 7-way to make sure that
it is long enough to turn, but not too long to touch the ground.
NOTE: Check to make sure that lights are in proper operating condition and repair or
replace if necessary.
8. Connect the brake breakaway cable to towing vehicle.
9. Attach safety chains to tow vehicle by crossing chains. Allow enough slack in
chains necessary for turning.
10. Test the brakes and all the lights on the Speed Tender
WARNING: Check safety chains for broken, stretched or damaged link or end ttings.
Replace chains if found to be damaged. Do not weld safety chains.
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1.4 Transporting
NOTE: Make sure the jack is in the raised position before transporting.
NOTE: Check to make sure the boom arm is in the boom rest and the lynch pin is in place
with the conveyor ratchet strap securely fastened.
WARNING: Travel at a safe speed that allows you to maintain complete control of towing vehicle and
Speed Tender at all times.
1.5 Hydraulic Power Unit Operation
WARNING: Explosive fuel can cause res and severe burns. Stop engine before lling fuel tank.
WARNING: Carbon monoxide can cause severe nausea, fainting or death. Do not operate
engine in an enclosed or conned area.
WARNING: Hot parts can cause severe burns. Do not touch engine while operating or just after
stopping. Leave motor door open while running engine.
WARNING: Acid from battery can cause res and severe acid burns. Make sure to charge
battery in well-ventilated area.
WARNING: Make sure to relieve hydraulic pressure before working on hydraulic system.
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WARNING: Purge hydraulic system of air before operating Speed Tender to prevent serious injury or
death.
WARNING: Wear proper hand and eye protection when searching for leaks. Use wood or cardboard
instead of hands.
1. Check to make sure all ttings and hardware are in proper operating condition. Replace if worn or
broken. Check engine uid levels and sight gauge on reservoir for proper operating levels.
2. Slide the Fuel Shut-o Lever to the “ON” position (Figure 1.2).
3. Slide Choke Lever to the “ON” position (Figure 1.2).
4. Turn on main disconnect.
5. Turn the key to the start position. Once engine starts, release key (Figure 1.2).
6. After starting, allow the engine to warm-up. Slide choke to the “OFF” position, and increase throttle
speed (Figure 1.2).
7. To turn the engine o, slide the Fuel Shut-o to the “OFF” position (Figure 1.2).
NOTE: In extremely cold weather, it is best to allow engine and hydraulics to warm-up before
increasing throttle speed.
NOTE: If a hydraulic leak appears, turn o immediately and take appropriate action.
NOTE: See Engine manual for more details on upkeep and service.
Choke
Fuel Shut-O
rottle
Key
Figure 1.2
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1.6 Field Operation
WARNING: The Speed Tender must be hooked to the towing vehicle during loading and
unloading.
1. Position the Speed Tender next to the planter/drill so the conveyor/auger will reach the planter
box.
2. Remove lynch pin from Boom Arm. (Figure 1.3)
3. Start the hydraulic power unit and increase throttle speed. (Allow hydraulic uid to warm-up.)
(Figure 1.2).
4. Raise the boom out of the Boom Rest using the handheld control (Figure 1.4).
NOTE: Wireless options feature a Wireless Remote (Figure 1.4).
WARNING: When operating the hydraulic swing option, do not stand in the operating range of the
Conveyer.
WARNING: If you are parked on an incline the boom arm may swing freely. (It is advised
that you do not use the Speed Tender on uneven ground).
5. Check to make sure the hopper is in the up position (Figure 1.4)
Lynch Pin
Figure 1.3
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6. Using the remote, open the hydraulically driven doors on the speed tender.
WARNING: Empty-out the rear compartment rst to help prevent the chance of ipping the
Speed Tender.
7. Use the Handheld Control or Wireless Remote to start the conveyor.
8. Fill the planter/drill to desired level then repeat.
NOTE: Adjusting engine throttle will regulate conveyor speed.
9. Close door on Speed Tender before the last planter seed box is full so you can completely empty-out
collapsible hopper and conveyor.
CAUTION: If you are parked on an incline the boom arm may swing freely. (It is advised that
you do not use the Speed Tender on uneven ground).
Figure 1.6
Figure 1.4
See Section 4.1 for Remote Options Figure 1.5
Wireless
Remote Handheld
Control
Hopper Up
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10. Position boom above boom rest and lower to allow its full weight on the boom rest.
11. Replace lynch pin in Boom Arm.
13. Make sure that the conveyor hold down ratchet strap is tight enough that the conveyor will
not move during transportation.
14. Make sure the collapsible hopper is in the up position for storage (Figure 1.6).
NOTE: If you are not using an optional hopper cover this will help the water drain out of the
hopper.
15. Run the engine at 1/2 to full rpm for 20 minutes to recharge the battery.
16. Slide the fuel shut o lever to the “OFF” position. This will allow the engine to shut o by running out
of gas.
17. Turn the key to the “OFF” position.
18. Turn o main disconnect.
1.7 Filling Speed Tender From Another Wagon or Bulk Container
WARNING: The Speed Tender must be hooked to the towing vehicle during loading and
unloading.
1. Remove lynch pin from Boom Arm (Figure 1.3).
2. Start the hydraulic power unit and increase throttle speed. (Allow hydraulic uid to warm up.)
NOTE: Make sure collapsible hopper is in the down position.
3. Raise the boom out of boom rest using the handheld control. (Figure 1.4).
NOTE: Wireless options feature a Wireless Remote (Figure 1.4).
CAUTION: If you are parked on an incline, the boom arm may swing freely. (It is advised
that you do not use Speed Tender on uneven ground)
5. Rotate the conveyor to 45 deg. (Figure 1.8)
6. Lower the boom so you can remove the telescoping spout from the discharge
end of the conveyor.
7. Undo the conveyor hold down ratchet strap.
8. Swing the collapsible hopper end out from under the Speed Tender shell.
9. Position the discharge end over the Speed Tender.
45 deg.
Figure 1.8
NOTE: The conveyor is equipped with a stand (Fig-
ure 1.7). (It is recommended for use whenever
possible to maximize conveyor performance and for easier
access to discharge point on bulk seed containers).
Figure 1.7
Conveyer Stand
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11. Lock collapsible hopper in the up position (Figure 1.6).
12. Position the wagon or bulk seed container over the collapsible hopper.
13. Use the handheld controller or wireless remote to start the conveyor.
14. Fill the Speed Tender to desired level.
WARNING: Fill the front compartment rst to help prevent the chance of ipping.
15. Run the conveyor until the collapsible hopper is empty.
16. When nished loading seed into the Speed Tender, move the wagon or bulk seed container away from
conveyor.
17. Place collapsible hopper in the down position.
18. With the Boom Arm at a 45 deg. angle, swing the conveyor/auger back into the resting position on
the boom arm (Figure 1.8).
19. Place the conveyor/auger hold down ratchet strap around the conveyor/auger and tighten the strap (Figure
1.3).
CAUTION: If you are parked on an incline, the boom arm may swing freely. (It is advised that
you do not use the Speed Tender on uneven ground.)
20. Position boom arm above the boom rest and lower to allow its full weight on the boom rest.
21. Replace lynch pin in boom arm pin.
22. Make sure that the conveyor/auger hold down ratchet strap is tight enough that the conveyor/auger will
not move during transport.
23. Make sure the collapsible hopper is in the up position for storage (Figure 1.6).
NOTE: This will help the water drain out of the hopper.
24. Run the engine at 1/2 to full rpm for 20 minutes to recharge the battery.
25. Slide the fuel shut o lever to the “OFF” position. This will allow the engine to shuto by running out
of gas.
26. Turn the key to the “OFF” position.
27. Turn o main disconnect.
1.8 Cleaning out Collapsible Hopper and Conveyer
WARNING: The Speed Tender must be hooked to the towing vehicle during loading and
unloading.
1. Remove lynch pin from Boom Arm (Figure 1.3).
2. Start the hydraulic power unit and increase throttle speed. (Allow hydraulic uid to warm up (Figure 1.2).
NOTE: Make sure collapsible hopper is in the down position.
3. Raise the boom out of boom rest using the handheld control. (Figure 1.5).
NOTE: Wireless options feature a Wireless Remote (Figure 1.4).
CAUTION: If you are parked on an incline, the boom arm may swing freely. (It is advised
that you do not use Speed Tender on uneven ground).
4. Rotate the conveyor to 45 deg. (Figure 1.8).
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7. Lower the boom so you can remove the telescoping spout from the discharge end of the conveyor/auger.
8. Undo the conveyor hold down ratchet strap (Figure 1.3).
9. Swing the collapsible hopper end out from under the Speed Tender shell.
10. Place the collapsible hopper in the up position (Figure 1.6)
11. With the discharge end lower than the collapsible hopper end, place the discharge end into a 5 Gal. bucket
(Figure 1.9). Using the hand held controller, start the conveyor/auger and run until completely empty.
12. Lower the collapsible hopper end back down to the ground. This will allow you to open the clean-out door.
(Figure 1.10)
13. Place collapsible hopper in the down position.
CAUTION: If you are parked on an incline, the boom arm may swing freely. (It is advised that
you do not use Speed Tender on uneven ground).
15. With the boom arm at a 45 Deg. angle, swing the conveyor/auger back into the resting position on the
boom arm (Figure 1.8).
16. Place the conveyor hold down ratchet strap around the conveyor/auger and tighten the strap
(Figure 1.3).
17. Position boom arm above boom rest and lower to allow its full weight on the boom rest.
18. Replace lynch pin in boom pin.
19. Make sure that the conveyor hold down ratchet strap is tight enough that the conveyor will not
move during transportation.
20. Make sure the collapsible hopper is in the up position for storage (Figure 1.6).
NOTE: This will help the water drain out of the hopper.
21. Slide the fuel shut o lever to the “OFF” position. This will allow the engine to shuto by running out of
gas.
22. Turn the key to the “OFF” position.
23. Turn o main disconnect.
Figure 1.9
Figure 1.10
Conveyor Clean-
out Door
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1.9 Adjusting the Tarp Tension in Hanger Bracket
1. Fully unroll the tarp as shown in Figure 1.11.
2. Remove the two bolts that hold the tarp U-Joint on the splined shaft.
3. Remove the u-joint from the spline shaft.
4. Rotate u-joint and handle three or four spline teeth.
NOTE: Clockwise to tighten the tarp or counter-clockwise to loosen it.
5. Slide the u-joint and handle back onto the spline shaft.
6. Replace and tighten the two bolts.
1.10 Basic Scale Operations
1. Turn the scale “ON” by pressing the on/o button. The display shows “Hello” then the current weight
value is displayed.
2. Press G/N to access the gross mode. (Live scale weight is displayed in the G/N weighing mode.)
3. In the gross mode, press the ZERO/CLEAR key to zero the indicator when the Speed Tender is empty.
4. After initial amount is placed on the scale, press the TARE Key. (Weight is tarred o and goes into net
mode, showing weight).
5. Load or unload material as needed (Shows + when loading and a – value when unloading).
6. When the display reaches the proper amount, stop loading or unloading.
7. Repeat steps 2 through 4 until complete.
NOTE: For more information, refer to the scale manual.
Figure 1.11
U-Joint
Bolts
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2.1 Grease Conveyer Bearings
Grease the conveyor bearings every 10 hours of operation and before storage. Use only two pumps of grease per
bearing (Figure 2.1).
NOTE: Over lubrication of these bearings will result in premature failure.
NOTE: The conveyor has four bearings that need grease (two at each end).
2.2 Grease Boom Arm
Grease pivot points on boom arm every 50 hours and before storage (Figure 2.2).
Figure 2.1
Grease Point
Figure 2.2
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2.3 Tire Pressure
The following is to be used as a general guide for tire ination. Figures can vary depending on specic brand of
tire used. It is important that tires are inspected before and after unit is loaded. Start with the minimum pressure
indicated. The tire should stand up with no side wall buckling or distress as tire rolls. Do not exceed maximum
recommended tire pressure. 80 psi is the cold rating on the tire that is standard for the Speed Tender. J&M also
recommends to rotate your tires front to back (not side to side) every 1,200 miles or 12 months (whichever comes
rst) for longer tire life. Figure 2.3 below is a troubleshooting chart used to ensure the tires wear evenly.
2.4 Tightening Lugnuts
Torque lug-nuts on new and removed wheels to 350-375 ft. lbs. after the rst 10, 25, and 50 miles of driving,
then recheck torque every 50 hours or every year, whichever comes rst. Always tighten
lug-nuts in the following sequence.
Figure 2.3
1
2
3 4
5
6
7
8
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2.5 Wheel Bearings
The wheel bearings need to be cleaned, inspected, and repacked every 12 months or 12,000 miles. Use a number
2 wheel bearing grease to repack the bearings.
Bearing Inspection and Service:
1. Jack up Speed Tender.
2. Remove wheel lug-nuts.
3. Remove wheel from hub.
4. Remove grease cap.
NOTE: Be careful not to dent or cut a hole in grease cap.
5. Remove the cotter pin, nut, and washer.
6. Wiggle the hub to take the outer wheel bearing out.
7. Pull hub assembly straight o the axle. If you want to reuse the grease seal, (which is not recommended),
be careful to support the weight of the hub so that the end of the axle does not ruin the rubber part of the
grease seal.
8. To remove the inner bearing, you must remove the grease seal.
9. Remove inner bearing.
10. Wash all grease and oil from the bearing cone using a suitable solvent. Dry the bearing with a clean, lint-
free cloth and inspect each roller completely. If any pitting, scalding, or corrosion is present, then
the bearing must be replaced. The bearing cups inside the hub must be inspected.
NOTE: Bearings must always be replaced in sets of a cone and a cup (See bearing cup replacement
on following page.)
11. Position the new wheel seal in its recess and lightly set it with a hammer.
NOTE: Be careful to not deform the metal part of the seal.
12. Slide the hub assembly onto the spindle and push it back into position.
13. Slide it and the spindle washer onto the spindle and into the hub recess.
14. Install and bottom out the spindle nut, then back it o 1/4 turn.
15. Reinstall the spindle nut and replace the cotter pin with a new one.
NOTE: If the castle nut does not line up with the hole in the spindle, then loosen the nut
slightly until it does.
16. Reinstall the wheel onto the hub and torque the wheel lug-nuts.
NOTE: See wheel nut/bolt torque requirements located in section 2.4.
Bearing cup replacement:
1. Place the hub on a at work surface with the cup to be replaced on the bottom side.
2. Using a brass drift punch, carefully tap around the small diameter end of the cup to drive it out.
3. After cleaning the hub bore area, replace the cup by tapping it with the brass drift punch. Be sure the cup
is seated all the way up against the retaining shoulder in the hub.
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Bearing Lubrication
- The axles are equipped with oil lubricated hubs. The lubrication procedure is to periodically ll the hub with
a high quality hypoid gear oil to the level indicated on the clear plastic oil cap. The oil can be lled through the
rubber plug hole in the cap.
Recommended Oil- SAE 90 Hypoid Gear (Hypoid Rear Axle Oil)
Seal Inspection and Replacement
-Whenever the hub is removed, it’s recommended to replace the seals to assure that the seal properly seals the
bearing cavity. To replace the seal:
1. Pry the seal out of the hub with a screwdriver. Never drive the seal out with the inner bearing as you may cause
damage to the bearing.
2. Apply Permatex sealant to the outside of the new seal.
3. Tap the new seal into place using a clean wood block.
Bearing Adjustment and Hub Replacement
If the hub has been removed or bearing adjustment is required, the following adjustment procedure must be fol-
lowed:
1. Install the bearing and washer into the hub. Thread on the inner nut, rotate the hub and tighten the nut to 100
Ft-Lbs. of torque.
2. Then loosen the spindle nut to remove the torque. Do not rotate the hub.
3. Finger tighten the spindle nut until snug.
4. Back the spindle nut o slightly 1/4 to 3/8 turn.
5. Place the tang washer on the spindle and bend two tangs inward over the nut. This will keep the inner nut from
turning while torque is applied to the outer nut
6. Install the outer nut and torque it to 100—175 Ft-Lbs. Insure that the inner nut does not turn. Bend two tangs
from the tang washer over the outer nut ats to secure.
7. Install cap with the O-ring and plug installed. Rotate the hub and check the bearing adjustment. The allowable
end play is .001” - .010”.
Inspection and Replacement
All the components of your suspension system should be visually inspected at least every 6,000 miles for signs
of excess ware, elongation of bolt holes, and loosening of fasteners. Whenever loose or replaced, the fasteners in
your suspension system should be torqued as in the chart below.
Torque (Ft-Lbs.)
Item Min. Max.
U-Bolt 110 150
Drum Mounting 90 110
Spring Eye Bolt 200 250
Equalizer 325 375
Plastic Oil Cap 20 30
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