Simard Workshop Manual 58122c

TABLE OF CONTENTS

Ordering Parts............................................................. General Working Direction........................................ Technical Description.................................................. Tightening Torques...................................................... Maintenance Chart...................................................... Description Repair Work........................................... Power steering troubleshooting………….…….…… Alignment trouble shooting………….…..………….. Alignment………….......……………………………...

3 4 5 6 7 8 9 10 11 11.1 11.2 Grease points……..…………………………………… 12

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Ordering Parts

Ordering Parts for your AMS SUSPENSIONS

Original AMS SUSPENSIONS parts are specially engineered and designed with carefully specified steels. These steels are tested for quality and consistency in both chemistry and strength. They meet exacting requirements for each particular application. Welding processes are monitored and tested for quality and integrity. Each type of weld is carefully and consistently applied to insure the least amount of steel texture change for maximun strength. Even the type of welding wire is ordered to meet the spcecificaly requirements of the particular application. There are many imitators out there without the design analysis, engineering or CAD-CAM capabilities of AMS SUSPENSIONS. Quite often their parts look identical. However, without the same steel specification, welding procedures and exact design requirements, these imitations are not the same as AMS SUSPENSIONS original parts. In addition to not lasting as long, they can cause genuine safety hazards. They may expose you, your employees or your customers to injury or worse. Ours parts are designed with safety and duration as our top priority.

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GENERAL WORKING DIRECTIONS IMPORTANT INFORMATIONS

Your AMS suspension Althought your new truck has been built, inspected, lubricated and final adjustements performed at our Baie St-Paul assembly plant, some settling of the system, can be brought on due to the wearing of moving parts. Quick action to correct these minor items could prevent a major repair later. During first 3000 miles ( 5000 kms ) • After the first 125 miles ( 200 kms ), retorque the wheel nuts using an accurately calibrated torque wrench. Recheck this torque again after 500 miles (800 kms ). • Observe instruments often, and shut the vehicule down as soon as possible, at first sign of any abnormal readings. • Check for leaks, loose fasteners, unusual noises , etc… and correct as necessary. • Check the U-bolts torque on AMS suspension at the end of the first 1000 miles ( 1600 kms ) of service. At the end of first 3000 miles ( 5000 kms ) or before 4000 miles ( 6500 kms ) . • Retorque U-bolts

Note: Refer regularly to our Simard preventive maintenance schedule supplied in this manual.

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AMS SPRING SUSPENSION Patented in Canada and the United States since 1992, AMS spring suspension—involving the addition of a second axle at the front of the vehicle—presents many advantages: •Increases and better distributes load capacity; •Improves driving stability, for greater safety and comfort; •Requires minimal maintenance, due to its rugged construction; •Extends the lifetime of tires and steering components; •Adapts to all makes of trucks

Technical description: Suspension type

spring front tandem (multileaf)

Suspension load capacity

7,250/8 7,160/9,070 kg (16,000/18,000/20,000 lbs)

Axle type

I-beam steering axle

Axle load capacity

7,250/8,160/9,070 kg (16,000/18,000/20,000 lbs)

Axle spacing

64 to 96 inches, depending on vehicle model

Brakes

(16.5 x 5) or (16.5 x 6) S-cam air with automatic slack adjuster (ABS optional)

Hub types

hub mount, stud mount, and 6 spoke wheels

Wheel (rim) types

aluminum or steel (11 1/4 or 13 3/16)

Tire size

315/80R22.5, 385/65R22.5, and 425/65R22.5

Steering

hydraulic power (65 series TRW steering gear)

Pump

8 GPM minimum required

Turning radius

retains the same specifications as the original equipment

Total weight

suspension and axle combined 1,134 kg (2,500 lbs)

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Maintenance Chart

AMS SUSPENSION preventive maintenance chart

•

Check that all the suspension components are very well lubricated.

•

Check steering components wear ( Tie-Rod-End )

•

Check excessive tire wear ( sign of alignement problems or steering parts failure ).

•

Check power steering oil level.

•

Check both front axles parallelism.

•

Check drag ling condition .

•

Check wheel stoppers ( they should be well synchronized ).

•

Check tire pressure ( 80 to 100 psi.).

•

Check wheel oil level.

•

Check brakes adjustement on the axles.

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DESCRIPTION OF REPAIR WORKS

Spring replacement……….................………..

8.1

Tie rod end replacement……………………….

8.2

Spring pins, rollers wear shim replacement… 8.3 Equalizer removal……..……….………………...

8.4 8.4.1 8.4.2

Equalizer bushing replacement............…..……

8.5

Fix the equalizer………....………………………….. 8.6 8.6.1 8.6.2 Steering assist replacement………………...….. 8.7 Knuckle arm replacement ………………………..

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8.8

Working Suspension AMS 8.1. Spring replacement.

Pic.1

5

Pic.2

-8.1-

Working Suspension AMS 8.2 Tie rod end replacement 1- Before removal , mesure with accuracy the lenght ot the drag link, center-to-center.

?

Pic. 3

2- If you have to remove the two drag link be sure of their position. DO NOT INVERT . (Pic. 4 )

Drag link avant

3- Refer to the torque chart. See P.7

Pic. 4

4- Reinstall clamps in the same axis to prevent conflict with another parts.

5- Refer to thee torque chart See p.7 Pic.5 6- Check alignement . See p.12

Pic.6 -8.2-

Working Suspension AMS 8.3 Spring pins, rollors and wear shim replacement 1- Make sure that you use original parts.

Pic. 7 2- Make sure that you reinstall spring pins with their grease holes in avertical axis.

3- Do not overthight the wear shim hex. Bolts neither the spring pins to make sure that springs and roller can move freely in the hanger.

Pic. 8 4- Reinstall cotter pins.

Pic.9

-8.3-

Working Suspension AMS 8.4 Equalizer removal 1- Lift up vehicule

Pic. 10 2- Remove all bolts, spring pins and cross rods. ( pic. 11-12-13 )

Pic. 11

Pic. 12

-8.4-

Pic. 13

Working Suspension AMS 8.4.1 Equalizer removal ( next ) 1- If necessary, remove entire equalizer hanger. ( Pic. 14)

Pic. 18 Pic. 14

Pic. 19

2- Remove center bolt nut . (Pic.15)

Pic. 15

Pic. 21 -8.4.1-

Working Suspension AMS 8.4.2 Equalizer removal ( next )

1- You may have to oxycut center bolt. (Pic.16-17-18) Pic. 16

Pic. 17

Pic. 18

-8.4.2-

Working Suspension AMS 8.5 Equalizer bushing replacement 1- Use hydraulic press with appropriate die to remove old bushing and reinstall new bushing. (Pic.19)

2- Use original bushing and center bolt.

Pic. 19

3- Use rubber resistant grease to lube tube and bushing. (Pic.20)

Pic. 20

4- Center bushing in the tube .(Pic 21)

Pic. 21

-8.5-

Working Suspension AMS 8.6 Fix the equalizer .1- Lube each of equalizer hanger, center bolt and center bushing hole , before installation (Pic. 22-23) Pic. 22

Pic. 23

2- reinstall each component as shown . ( Pic.24 to 30)

Pic. 24

Pic. 29

-8.6Pic. 25

Working Suspension AMS 8.6.1 Fix the equalizer ( next )

Pic. 26

Pic. 27

Pic.28

-8.6.1-

Working Suspension AMS 8.6.2 Fix the equalizer (next )

Pic. 29

Pic. 30

-8.6.2-

Working Suspension AMS 8.7. Steering Assist replacement 1- Use original part only. (Pic.31)

Pic. 31

2- Mark each hose before removing. 3- Mark each spacer between steering and frame. (Pic.32) 4- See torque chart. Pic. 32

5- To drain air: - remove cover of steering oil tank - add oil if needed - start engine, idle - remove pitman arm from steering assist without removing tie rod end. - with wheels on the floor, turn slowly left and right to the extreme 3 or 4 times. Pic. 33

Note: It’s important to make sure that the sector shaft line is perpendicular to the steering housing. Also, steering assist on main power steering shaft should have the same rotating direction.

-8.7-

Pic.33

Pic. 34

Working Suspension AMS 8.8 Knuckle arm replacement 1- Use original part only.

2- See torque chart. Pic. 35

Pic. 36

Pic. 37

Pic.33

-8.8-

Pic. 38

Power steering trouble shooting Check power steering oil level

OK

Check pump pressure

OK

Check pump G.P.M.

Low

Low

Low

Add

Check release valve

Repair or replace

Defective Repair or replace

Check steering assist hoses and coupling

OK

Defective

Check pressure at power steering delivery port

OK

Low

Defective

Repair or replace

replace

OK Repair or replace

Check pressure at steering assist del. port

OK

Check all hoses and fitting

Simard au Tél.: 1 (418) 435-5347 Fax.: 1 (418) 435-3346 WWW.EMMANUELSIMARD.COM

Low

Repair or replace

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OK

Alignement trouble shooting (See page 11-11.1-11.2 )

Check king pin condition

OK

Defective

Repair or replace

Check Nuckle Arm condition

OK

Check drag link condition

Defective

Defective

Repair or replace

Repair or replace

Defective Check alignement

Repair or replace

Défective

Check tie-rod-end installation order On Pitman Assist

OK

OK

Repair or replace

Repair or replace

Défective

Défective

Check Parallelism

OK

OK

Check Axles Alignement on Rear Tandem

OK

Simard au Tél.: 1 (418) 435-5347 Fax.: 1 (418) 435-3346 WWW.EMMANUELSIMARD.COM

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Check Cross tube Condition