background image

Page 1 of 6

3D Bush Removal and Replacement Guide Using a Hydraulic Bush 
Service Tool

CONTENTS OF SAF 3D-BUSH HYDRAULIC KIT 

2

1

3

4

Photo Item

Description

Part No.

1

Hydraulic Intra 3D Bush Tool Mounting Tool

3 434 3317 00

2

Hydraulic Intra 3D Bush Tool Actuator (Hydraulic Ram)

4 434 3302 00

3

Hydraulic Intra 3D Bush Tool Connecting Hose

4 434 3303 00

4

Hydraulic Intra 3D Bush Tool Pump

4 434 3304 00

SERVICE BULLETIN

PREPARATION

Prior to removing the pivot bushing, perform the following steps in accordance with the relevant operating 
instructions and the associated repair and maintenance manual, observing the indicated safety instructions: 

1.  Place wheel cocks in front of and behind the trailer wheels to prevent the trailer from rolling

 WARNING

Failure to use wheel chocks might allow the vehicle to roll which could result in death or serious injury.

2.  Bleed all air from the air suspension system
3.  Suitably support the axle
4.  Remove the adjustable pivot bolt and discard along with the nuts
5.  Remove the shock absorber from the trailing arm, and discard the nuts
6.  Lower the axle
7.  Replacement part numbers are:  

4177303500K - 3D Bush and Installation Lubricant  
RK2980 - 3D Bush, Installation Lubricant and Replacement Mounting Hardware

Summary of Contents for 3 434 3317 00

Page 1: ... relevant operating instructions and the associated repair and maintenance manual observing the indicated safety instructions 1 Place wheel cocks in front of and behind the trailer wheels to prevent the trailer from rolling WARNING Failure to use wheel chocks might allow the vehicle to roll which could result in death or serious injury 2 Bleed all air from the air suspension system 3 Suitably supp...

Page 2: ...ntering ring faces toward the cover plate The centering ring Fig 3 of the receiver tube is used to center the receiver tube on the trailing arm receptacle When the removal tool is used the centering ring must always face toward the trailing arm receptacle Fig 3 Receiver tube with centering ring Centering Ring REMOVAL Fig 1 Identification of removal tool components Preparing the Pivot Bush Replacem...

Page 3: ...ing will reduce vehicle stability which could result in death or serious injury 3 Lubricate the Drive nut 6 and the threads on the threaded rod 4 Use standard grease 4 Insert the threaded rod end 4 of the correctly pre assembled removal tool through the hole in the pivot bushing until the centering ring of the receiver tube 5 fits the bushing receptacle Screw the drive nut 6 onto the threaded rod ...

Page 4: ...he bushing position locator of the replacement bushing must be aligned with the line on the outside of the receiver tube The orientation index marked Top must face upward as illustrated in Fig 10 If need be readjust the pivot bushing 5 Push the pivot bushing and the drive disc 6 completely into the receiver tube as shown in Fig 11 Fig 8 Lubricated receptacle Fig 9 Lubricated pivot bushing Fig 10 C...

Page 5: ... opposite axle side as described earlier and install a replacement pivot bushing as outlined 8 Operate the Hydraulic pump until the drive nut 6 and the pivot bushing are completely drawn into the receptacle 5 and the receiver tube becomes loose and can be removed Fig 13 Fig 14 Checking spring center Fig 15 Checking installation position FINAL STEPS Upon replacement of the pivot bushing perform the...

Page 6: ...onths Service Intervals for Steel Hanger Brackets First check after 5000kms Further checks every 12 months Pivot bolt Inspection torque 1 200 Nm Shock absorber bolt Inspection torque 600 Nm Tightening torques for SAF air suspension systems M12 SW19 40 Nm M16 SW24 180 Nm for steel plunger piston 80 Nm for plastic plunger piston M30 SW46 400Nm 120o Tightening torques SAF INTRA with aluminum hanger b...

Reviews: