PLATE 4645152 - Caterpillar

PlanerPM620 (S/N: JB9100-157; LH9100-120)PM622 (S/N: JFC100-149)Description Of Change: The Rotor drive belt tension has been updated on machines listed above. The new pressure setting will reduce the potential of belt slippage and low rotor speed events.Adaptable To: The rotor belt tension has been now increased from 3500 200 kPa (508 29 psi) to 4500 200 kPa (653 29 psi) on machines listed above.For pressure settings, refer to Testing and Adjusting Manual , UENR6294 , "Pressure Reducing Valve-Test and Adjust-Rotor Belt Tension".The above changes are adaptable to machines within the listed serial numbers, and are effective with all machines after the listed serial numbers.