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DISASSEMBLY AND ASSEMBLY
 
 
Disassembly steps
>>F<<•Air gap adjustment
1.Bracket
2.Connector assembly
<<A>>>>E<<3.Self-locking nut
4.Armature
5.Shim
>>D<<6.Snap ring
<<B>>>>C<<7.Rotor
8.Snap ring
>>B<<9.Field core
10.A/C compressor
>>A<<11.A/C compressor high pressure relief valve
Required Special Tool:
  • MB990810: Side bearing puller
  • MB992623: Guide
  • MB992624: Pusher
  • MD999566: Claw
  • MB991367: Special spanner
  • MB991386: Pin
 
 
DISASSEMBLY SERVICE POINTS
 
 
<<A>> SELF-LOCKING NUT REMOVAL
Use the special tools below to remove the self-locking nut.
 

 
 
<<B>> ROTOR REMOVAL
caution
  • Be sure to use the guide (MB992623) when the side bearing puller (MB990810) is used to prevent the damage of A/C compressor.
  • If the threaded shaft of side bearing puller (MB990810) is turned than necessary, the rotor may be distorted. Therefore, turn the threaded shaft lightly only by hand without using any tools.
Rotor can be removed by hand, but if it is difficult to remove it, use the guide (MB992623) and the side bearing puller (MB990810) as shown.
 
 
 
 
REASSEMBLY SERVICE POINTS
 
 
>>A<< A/C COMPRESSOR HIGH PRESSURE RELIEF VALVE INSTALLATION
cautionBe careful not to damage the O-ring when installing the high-pressure relief valve. Apply the specified refrigerating machine oil the high-pressure relief valve mounting hole before installation
Check that O-ring is installed to the high-pressure relief and use the adjust torque wrench to install the high-pressure relief valve to the main body of the compressor.
 

 
 
>>B<< FIELD CORE ATTACHMENT
Line up the pin hole on the compressor unit with the field core projection and attach.
 

 
 
>>C<< ROTOR INSTALLATION
cautionIf the outer wheel side of rotor is pushed, an abnormal noise can be generated because the inside of rotor is damaged, therefore, always push the inner wheel side.
Install the rotor while pushing the inner wheel side slowly using the pusher (MB992624) and guide (MB992623).
noteInsert the rotor in a direction perpendicular to the A/C compressor.
 

 
 
>>D<< SNAP RING INSTALLATION
Using snap ring pliers, fit the snap ring so that the snap ring's tapered part is on the outside.
 

 
 
>>E<< SELF-LOCKING NUT INSTALLATION
Using a special tool, as when removing the nut, secure the armature and tighten the self-locking nut.
 

 
 
>>F<< AIR GAP ADJUSTMENT
Check whether or not the air gap of the clutch is within the standard value.
Standard value:
  • 0.15 - 0.4 mm (0.006 - 0.02 inch)
noteIf there is a deviation of the air gap from the standard value, make the necessary adjustment by adjusting the number of shims.