DISASSEMBLY AND REASSEMBLY






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


2.
Strut insulator assembly

>>C<<
3.
Bump stopper

>>B<<
4.
Strut bearing


5.
Upper spring pad

>>A<<
6.
Coil spring


7.
Lower spring pad
<<B>>

8.
Strut

DISASSEMBLY SERVICE POINTS



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



1.Install special tool attachment A (MB991795) to 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 setting 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 special tools to loosen the strut nut (self-locking nut):

  • Wrench (MB991681)
  • Socket (MB991682)

<<B>> STRUT 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, place the strut 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.

REASSEMBLY SERVICE POINTS



>>A<< COIL SPRING INSTALLATION


caution Make sure that the coil spring is seated properly in the concave groove of the spring pad.

1.Align the bottom end of the coil spring with the end of the recess in the spring lower pad.

2.Align the top end of the coil spring with the end of the lug in the spring upper pad.

>>B<< STRUT BEARING INSTALLATION


caution Install the strut bearing without any damage.

>>C<< BUMP STOPPER INSTALLATION



Insert the bump stopper securely into the cup (cup for stopper fixation) of the strut insulator assembly until it is seated.

>>D<< STRUT NUT (SELF-LOCKING NUT) INSTALLATION



1.Use the following special tools to compress the coil spring gradually.:

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

2.
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