DISASSEMBLY AND REASSEMBLY



Disassembly steps
<<A>>
 >>C<<
 1.
 Strut nut (Self-locking nut)


2.
 Strut insulator assembly

>>B<<
 3.
 Bearing


4.
 Upper spring seat


5.
 Upper spring pad


6.
 Bump rubber

>>A<<
 7.
 Coil spring


8.
 Spring tube
<<B>>
9.
 Strut assembly

DISASSEMBLY SERVICE POINTS

<<A>> STRUT NUT (SELF-LOCKING NUT) REMOVAL

1.Install the special tool attachment A (MB991795) to the special tool spring compressor (MB991793) as shown in the figure.

2.Set the strut assembly to the following special tools:

  • Spring compressor (MB991793)

  • Attachment A (MB991795)

  • Upper plate (MB991794)

  • Fixture (MB991830)
note Use the bolts and nuts removed from the vehicle to secure the strut assembly and tighten them lightly by hand.
3.After steering the strut assembly, operate the spring compressor and compress the coil spring by approximately 5 mm.

4.
caution The locking nut for the piston rod inside the strut may be loose. Do not use the impact wrench to loosen the strut nut (self-locking nut).
Use the following tools to loosen the strut nut (self-locking nut):

  • Wrench (MB991681)
  • Socket (MB991682)

<<B>> STRUT ASSEMBLY REMOVAL
caution Wear the protective glasses. Although the gas is harmless, drilling chips may be blown out by the gas.

Before disposal of the strut assembly, place the strut assembly on the level surface with the piston rod extended, and make a hole of approximately 3 mm in diameter at the point shown in the figure to discharge the gas.

ASSEMBLY SERVICE POINTS

>>A<< COIL SPRING INSTALLATION
1.Fit the coil spring to the spring tube securely.

2.Install the coil spring equipping with the spring tube to align the bottom with the shape of the strut spring sheet.

>>B<< STRUT BEARING INSTALLATION
caution Install the strut bearing without any damage.

>>C<< STRUT NUT (SELF-LOCKING NUT) INSTALLATION
1.Check that both of the coil spring ends align with the spring seat groove correctly.

2.Align the strut spring seat hole with the upper spring seat hole.
note Use the pipe to align the holes easily

3.
caution Be careful that the hand is not pinched by the coil spring when aligning the piston rod with the hole of upper insulator while compressing the coil spring.
While passing the strut piston rod through the hole of upper insulator by hand slowly compress the coil spring by the following special tool:

  • Spring compressor (MB991793)
  • Attachment A (MB991795)
  • Upper plate (MB991794)
  • Fixture (MB991830)

4.
caution The locking nut for the piston rod inside the strut may be loose. Do not use the impact wrench to loosen the strut nut (self-locking nut).
Use the following special tools to tighten the strut nut (self-locking nut) to the specified torque:

  • Wrench (MB991681)
  • Socket (MB991682)
Tightening torque: 60 ± 9 N·m