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8

B) Maintenance instructions

Brake testing 

Fault-finding procedure

Lift vehicle, 

turn wheel 

by hand

Does wheel 

turn freely?

Residual pressure 

in brake cylinder?

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Check upline 

brake devices 

and replace, 

if necessary

END

NO

YES

Running 

clearence OK?

(see page 19)

Check adjuster

(see page 9)

END

Check brake 

calliper bearings 

and repair, 

if necessary 

(see page 23)

END

END

Adjuster OK?

END

Replace brake 

calliper

(see page 24)

END

Binding not 

due to disc brake

Brake calliper 

guide system OK?

(see page 18) 

END

Check brake 

calliper bearings 

and repair, 

if necessary 

(see page 23) 

Uneven brake 

pad wear?

1)

Disc brake

Running 

clearence OK?

(see page 19)

NO

YES

1)

Difference between wear of inboard and outboard pad, and diagonal wear 

2 mm.

Содержание SK RB 9022 K

Страница 1: ...Service Edition 01 2006 SK RB 9022 K SK RB 9019 K with KNORR brake calliper SK 1000 ET 120 Maintenance and Repair Manual for SAF Disc Brakes...

Страница 2: ...out type plate Production No of axle on right of stub axle as seen in direction of forward travel Spare parts service for SAF axles and suspension systems When ordering spare parts quote correct axle...

Страница 3: ...xles SK RB 9022 K 9019 K SK 1000 ET 120 7 Brake testing fault finding procedure 8 Adjuster check 9 Brake pad check 10 Special notes 11 3 Contents Page This manual is intended for the technical worksho...

Страница 4: ...NOTIZEN NOTES NOTE 4...

Страница 5: ...t overheated by continuous operation With drum brakes overheating can result in a hazardous deterioration in the braking efficiency With disc brakes overheating can result in damage to surrounding com...

Страница 6: ...d damages Check adjuster cap for correct seating Inspect the brake pad thickness at regular intervals e g when ever tyre pressure is checked but at least every 3 months Inspect the brake disc for crac...

Страница 7: ...822 00 Installation drift for tappet 4 434 1062 00 Puller for inner boot 4 434 1063 00 Puller pusher for brass bush 4 434 1064 00 Caulking tool for brass bush 4 434 1066 00 3 4 spanner External torx s...

Страница 8: ...ce OK see page 19 Check adjuster see page 9 END Check brake calliper bearings and repair if necessary see page 23 END END Adjuster OK END Replace brake calliper see page 24 END Binding not due to disc...

Страница 9: ...o rotate freely during adjustment Note As the number of rotation steps of the ring spanner increases the turn angle or movement of the SAF ratchet wrench becomes smaller If the SAF ratchet wrench rota...

Страница 10: ...1 mm When the residual lining thickness is A 2 mm replace the brake pads Wear indicators At the point on the brake calliper 59 60 opposite the fixed sleeve 70 2 the brake pad thickness can be measured...

Страница 11: ...ture cannot enter the inside of the brake cal liper through the brake cylinder connection Painting instructions During painting work all rubber parts must be covered as otherwise the rubber will becom...

Страница 12: ...SK RB 9022 K 9019 K SK 1000 ET 120 Torque wrench settings Use a torque wrench The use of impact wrenches is not accepted Wheel nuts Spigot hub centred fixing M 22 x 1 5 600 Nm U bolts diagonally in th...

Страница 13: ...0 3 80 Guide pin group folding bellows including items 80 1 80 3 82 81 Guide pin group steel cap including items 80 4 80 5 81 1 81 2 83 This guide pin group should where possible be used for repairs R...

Страница 14: ...using a jack Loosen the wheel nuts and remove the wheel Remove the cap Turn the adjuster in anti clockwise direction up to the stop until it clicks 2 3 times Remove the locking pin and washer Press o...

Страница 15: ...ls Screw in the tappets again completely Replacing the brake disc Unscrew bolts M 18 x 1 5 from the wheel flange and remove the wheel flange Note Bolts must not be oiled Observe tightening torques Pre...

Страница 16: ...n down if necessary For safety reasons the minimum thickness for turning down the brake discs is 39 40 mm Permissible wear see table in chapter Maintenance instructions Note The compact wheel bearing...

Страница 17: ...hub unit must be rotated smoothly at least twice while tightening the bolts Hub nuts with LH thread are marked Groove on the face Axle nut W A F 85 On left hand side of vehicle as seen in direction o...

Страница 18: ...o cracks or other damage Check that the tappets and boots fit correctly and replace the tappets with boots if necessary Examining the brake calliper guide system The brake calliper 59 60 must move smo...

Страница 19: ...nd press down with a screwdriver until the pin can be inserted into the bore Insert locking pin and washer and secure with spring clip Note After operating the service brake system it must be possible...

Страница 20: ...rake calliper must be replaced Inspecting the adjuster thread Install a new brake pad in the outer calliper slot so that the threa ded tubes cannot be twisted out of the bridge The two threaded tubes...

Страница 21: ...ool SAF Part No 4 434 1062 00 with short tappet on boot 66 1 and press in the boot Turn over the push in tool and press in tappet 66 1 With brake calliper not installed on axle Grease threads with whi...

Страница 22: ...sert a new boot 80 4 into the sleeve arrow of the puller SAF Part No 4 434 1063 00 Insert sleeve with boot 80 4 into the bore and pull in with the puller Install guide bush 80 2 Insert boot 80 4 into...

Страница 23: ...rass bush 80 3 81 2 with the puller pusher Secure the brass bush 80 3 81 2 against longitudinal shifting in the brake calliper 59 60 by caulking the groove see arrow of the brake calliper 59 60 with s...

Страница 24: ...hex socket head screws to 290 Nm and check that the brake calliper can move freely Replacing the brake calliper Caution Do not repair the brake cylinder due to the inner sealing Use only an original r...

Страница 25: ...the hex socket head screws 80 1 81 1 and 70 1 to 290 Nm Check that the brake calliper can move freely Inspect the seat of the inner boot 80 4 on guide bush 80 2 Check the adjuster Fit new steel cap 83...

Страница 26: ...aphragm cylinder Note On the new diaphragm cylinder the rubber plug in the bore facing downwards must be removed for secondary chamber venting see arrows All other venting bores must remain closed Bef...

Страница 27: ...27 D Installation instructions Overview of Hub Unit components Hub cap Axlenut RH LH thread Wheel flange Brake disc Brake calliper Hub Unit Hub Unit...

Страница 28: ...nut wrench W A F 85 SAF Part No 2 012 0023 01 2 Wheel hub puller SAF Part No 4 434 3822 00 3 Installation drift for tappet with boot SAF Part No 4 434 1062 00 4 Puller for inner boot calliper bearing...

Страница 29: ...er for brass bush SAF Part No 4 434 1064 00 6 Wedge fork for tappet with boot SAF Part No 4 434 1065 00 7 Caulking tool for brass bush SAF Part No 4 434 1066 00 8 Assembly pin steel cap make according...

Страница 30: ...30 E Service tools 9 SAF ratchet wrench SAF Part No 3 434 3327 00...

Страница 31: ...50 780 930 M 22 x 1 5 610 860 1050 M 24 W A F 36 710 1000 1200 M 24 x 2 780 1100 1300 M 27 W A F 41 1050 1500 1800 M 27 x 2 1150 1600 1950 M 30 W A F 46 1450 2000 2400 M 30 x 2 1600 2250 2700 M 36 x 2...

Страница 32: ...33 07 07 372 697 91 96 372 697 91 96 33 3 88 72 06 43 386 26 16 58 35 45 75 72 74 74 32 59 33 07 07 34 9 13 82 68 41 48 6 18 31 98 70 40 2 12 50 02 60 39 02 66 16 55 74 45 75 72 74 74 42 02 61 10 45...

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