Track Adjuster/Recoil Spring Assembly PC40-3 PC40-5 PC40-6 PC40-7 PC50UU-1 PC50UU-2

Compatible with the following equipment:

KOMATSU

• PC20MR-2 S/N 15001-UP (Cab Spec.) EXCAVATORS
• PC20MR-2 S/N 15001-UP (Canopy Spec.) EXCAVATORS
• PC20MR-2-A S/N 15001-UP EXCAVATORS
• PC20MR-2-B S/N 15001-UP EXCAVATORS
• PC20MR-3 S/N 20001-UP EXCAVATORS
• PC22MR-3 S/N F30001 AND UP EXCAVATORS
• PC26MR-3 S/N F30003 AND UP EXCAVATORS
• PC27MR-2 S/N 15001-UP (Cab Spec.) EXCAVATORS
• PC27MR-2 S/N 15001-UP (Canopy Spec.) EXCAVATORS
• PC27MR-2 S/N F00103-Up EXCAVATORS
• PC27MR-2-A S/N 15001-UP EXCAVATORS
• PC27MR-2-B S/N 15001-UP EXCAVATORS
• PC27MR-3 S/N 20002-20508 (Cab Spec.) EXCAVATORS
• PC27MR-3 S/N 20002-20508 (Canopy Spec.) EXCAVATORS
• PC27MR-3 S/N 20002-20508 (For N.America, Cab spec.) EXCAVATORS
• PC27MR-3 S/N 20002-20508 (For N.America, Canopy spec.) EXCAVATORS
• PC27MR-3 S/N 20509-UP (North America Spec.) EXCAVATORS
• PC27MR-3 S/N 20509-UP EXCAVATORS
• PC30MR-2 S/N 20001-UP (Cab Spec.) EXCAVATORS
• PC30MR-2 S/N 20001-UP (Canopy Spec.) EXCAVATORS
• PC30MR-2 S/N F00103-Up EXCAVATORS
• PC30MR-2-A S/N 20001-UP EXCAVATORS
• PC30MR-2-B S/N 20001-UP EXCAVATORS
• PC30MR-2-C S/N 20001-UP EXCAVATORS
• PC30MR-2-D S/N 20001-UP EXCAVATORS
• PC30MR-3 S/N 30001-32724 (Cab Spec.) EXCAVATORS
• PC30MR-3 S/N 30001-32724 (Canopy Spec.) EXCAVATORS
• PC30MR-3 S/N 32725-UP (EU Spec.) EXCAVATORS
• PC30MR-3 S/N 32725-UP EXCAVATORS
• PC30MR-3 S/N F30001 AND UP EXCAVATORS
• PC30MR-3(JPN)-FOR CAB S/N 30001-UP EXCAVATORS
• PC30MR-3(JPN)-FOR CANOPY S/N 30001-UP EXCAVATORS
• PC30UU-3 S/N 10001-UP EXCAVATORS
• PC35MR-1 S/N 1001-UP EXCAVATORS
• PC35MR-2 S/N 5001-UP (Cab Spec.) EXCAVATORS
• PC35MR-2 S/N 5001-UP (Canopy Spec.) EXCAVATORS
• PC35MR-2 S/N 5001-UP (FOR CAB) EXCAVATORS
• PC35MR-2 S/N 5001-UP (FOR CANOPY) EXCAVATORS
• PC35MR-2 S/N 5001-UP (For High Altitude) EXCAVATORS
• PC35MR-2 S/N F00103-Up EXCAVATORS
• PC35MR-2-A S/N 5001-UP EXCAVATORS
• PC35MR-2-B S/N 5001-UP EXCAVATORS
• PC35MR-3 S/N 15001-16594 (Cab Spec.) EXCAVATORS
• PC35MR-3 S/N 15001-16594 (Canopy Spec.) EXCAVATORS
• PC35MR-3 S/N 15001-16594 (For N.America, Cab spec.) EXCAVATORS
• PC35MR-3 S/N 15001-16594 (For N.America, Canopy spec.) EXCAVATORS
• PC35MR-3 S/N 16595-UP (EU Spec.) EXCAVATORS
• PC35MR-3 S/N 16595-UP (North America Spec.) EXCAVATORS
• PC35MR-3 S/N 16595-UP EXCAVATORS
• PC35MR-3 S/N F30001 AND UP EXCAVATORS
• PC35MR-3(JPN)-FOR CAB S/N 15001-UP EXCAVATORS
• PC35MR-3(JPN)-FOR CANOPY S/N 15001-UP EXCAVATORS
• PC35MRX-1A S/N 1001-UP EXCAVATORS
• PC38UU-3 S/N 7001-UP EXCAVATORS

Lucas Parts stocks a range of track adjuster and recoil spring assemblies for many excavator models.

Properly maintaining  track tension is rictical for receiving satifactory track life, 

and track adjusters are designed to absorb shock to protect idlers and track systems.

Common issues in a loss of tension:

• broken springs lead to too soft tension
• damaged seals cause by bent cylinder rod