Main function

The piston lock for Scheppach and Woodster garden tools and brush cutters 51.7 cm³ – Ref. 3904803008 is designed to lock or hold the piston in a specific position within the engine mechanism.

It therefore contributes to the correct positioning and proper operation of the mechanical assembly, preventing unwanted movement of the piston or associated components.

A piston lock in good condition helps ensure the reliable operation of the petrol engine and proper retention of its mechanical components.

When should the piston lock be replaced?

The piston lock for Scheppach and Woodster garden tools and brush cutters 51.7 cm³ – Ref. 3904803008 may need to be replaced in the following cases:

• Lock is broken, cracked or deformed
• Significant wear of the part
• Lock no longer engages or disengages correctly
• Abnormal play in the mechanism
• Locking has become difficult or impossible
• Part damaged after disassembly or mechanical intervention
• Mechanism is no longer held securely

A worn, deformed or damaged part should be replaced in order to restore correct operation of the locking system.

This piston lock for Scheppach and Woodster 4-in-1 garden tools and brush cutters fits the following machines:

• Scheppach MFH5200-4P
• Scheppach MFH5200-4PE
• Scheppach MFH5300-4BP
• Scheppach BCH5200PB
• Scheppach BCH5300BP
• Scheppach BC52PB
• Scheppach MTC52-4P
• Scheppach MTC52 4SP
• Scheppach MTC52-5P
• Scheppach MTC53-5BP
• Scheppach MTC53-4BP
• Scheppach LB5200BP
• Scheppach BLB52X
• Woodster MFW52-4P
• Woodster BCW52P
• Woodster MFW52-5P
• Woodster BLP52BP
• Scheppach PBC520
• Scheppach MFH3300-4P
• Scheppach MFH3300-4BP
• Scheppach BCH3300PB
• Scheppach BCH3300-100PB
• Scheppach BCH3300-110P
• Scheppach 33/430
• Scheppach MPT3400-4PGE
• Scheppach MT33P
• Scheppach MFG320-4
• Scheppach OMF43-4P
• Scheppach P-MGB4-1
• Woodster MFW33-4P
• Woodster MFW32-2P
• Woodster MFW32-4PC
• Woodster BCW33P
• Hyundai 0.90 kW