Operation Manual

7MS 241 C

Fastener Thread size For component Tightening

torque

Comment

Carrier M 12x1 L Crankshaft carrier 50.0

Screw D 4x12 Oil pump / crankcase 4.0 2), 4)

Screw M 5x16 Muffler / crankcase 10.0 2), 3)

Screw M 5x16 Muffler / cylinder 10.0 2), 3)

Nut M 8x1 Flywheel / crankshaft 28.0 5)

Nut M 12x0.75 Switch 2.0

Screw P 4x10 Support 1.0

Screw D 4x12 Pre-separator / crankcase 4.0 2), 4)

M 10x1 Spark plug / cylinder 12.0

Screw D 4x20 Control unit / cylinder 4.5 2), 4)

Screw M 5x20 Cylinder / crankcase 1st stage 4.0 2), 4)

Screw M 5x20 Cylinder / crankcase 2nd stage 10.0 2), 4)

Remarks:

1) Loctite 242 or 243 medium strength

2) Screws with locking serration

3) Microencapsulated screws

4) Screws with easy-slide coating

5) Connection between crankshaft and flywheel must be degreased and oil-free

Q) QuickStop Super

B) Quick chain tensioner

VW) Heating

When inserting DG and P screws into an existing screw thread:

Insert the DG or P screw in the hole and turn counterclockwise until it gently drops into the hole in axial direction.

Tighten the screw clockwise to the specified torque.

This procedure ensures that the screw engages properly in the existing thread and does not form a new thread

and weaken the assembly.

Coat micro-encapsulated screws with Loctite 242 or 243 medium strength before refitting them.

Screwdriver speed when used in plastic material: max. 500 rpm for DG and P-type screws.

Do not use an impact wrench to release or tighten screw connections.

Screws with and without locking serration must not be confused.