Clutch Assembly for Dolmar PS-33, PS-330, PS-340, PS-341, PS-400 and PS-401 Chainsaws – 021 180 011

Description

This Dolmar PS-340 clutch is a three-shoe centrifugal assembly for selected Dolmar PS-33, PS-300 and PS-400-series chainsaws. The threaded centre and the three spring-loaded shoes correspond to the clutch design shown as reference 021 180 011 in the Dolmar parts catalogue.

Dolmar PS-340 clutch compatibility

Dolmar reference:

• 021 180 011
• 021180011

The official parts diagram assigns this clutch to:

• Dolmar PS-33
• Dolmar PS-330
• Dolmar PS-340
• Dolmar PS-341
• Dolmar PS-342
• Dolmar PS-344
• Dolmar PS-39
• Dolmar PS-400
• Dolmar PS-401

The same catalogue assigns a different lamellar clutch to the PS-410 and PS-411. Therefore, this assembly should not be listed as compatible with those two models.

Product details

• Product type: centrifugal chainsaw clutch
• Construction: three clutch shoes
• Spring arrangement: three coil springs
• Centre connection: threaded
• Replacement reference: 021 180 011
• Brand: Winzor
• Condition: new aftermarket replacement
• Package contents: clutch assembly shown in the photographs

As engine speed increases, centrifugal force moves the three shoes outwards against the inside of the clutch drum. Consequently, the drum and sprocket begin driving the cutting chain. When engine speed returns to idle, the springs retract the shoes and disconnect the drum from the crankshaft.

A worn clutch may slip under cutting load, engage harshly or produce excessive heat around the drum. However, similar symptoms can result from a worn drum, sprocket or needle bearing. Inspect these adjacent components before installing the new clutch.

The centre uses a left-hand thread, while the stamped OFF arrow indicates the removal direction. Therefore, use an appropriate clutch tool and an approved piston-locking procedure. Do not strike the shoes or springs, because impact damage can deform the assembly.

Before ordering, compare the reference, thread, overall diameter and shoe arrangement with the original part. Finally, follow the model-specific installation and tightening instructions.

Browse additional chainsaw replacement parts. Exact model allocation and exploded diagrams appear in the official Dolmar PS-340 parts catalogue.