Multiquip 303313740 Spring Main A,B MTR-60L - OEM Replacement Part for Tamping Rammer

The main spring assembly is a critical component in the MTR-60L tamping rammer's spring cylinder system, converting the engine's circular motion into the powerful vertical impact force that delivers 2,140 lbs per blow at 600 blows per minute. This spring works in conjunction with the centrifugal clutch and gearbox to create the resonant tamping action necessary for effective soil compaction.

The MTR-60L operates at 4000 rpm under full throttle, and the spring system must maintain precise resonance to avoid damage to the clutch and related components. Operating at partial throttle or with worn springs can disrupt this critical balance, reducing impact effectiveness and potentially damaging the transmission system. The spring cylinder uses a grease lubrication system requiring Shell Darina EP2 or equivalent every 8 hours of operation to maintain optimal spring performance and longevity.

Spring wear or failure typically manifests as reduced impact force, irregular tamping rhythm, or excessive vibration during operation. Regular inspection during the recommended maintenance intervals ensures the rammer maintains its full 2,140 lb impact force and 200 m² per hour tamping capacity.

Compatible Models:

• MTR-60L Tamping Rammer

Genuine Multiquip OEM part, sold by an authorized dealer.