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Stairmaster Steppers 4400CL Cover Removal and Replacement

Feb 08, 2023

There are three covers on the 4400 PT/CL and the 4200 PT: the top cover, the mid-cover and the bottom cover. The top and bottom covers are made of a right and left section. Do not separate the right and left sections of either the top or bottom covers to perform most maintenance tasks. Access to the interior of the machine takes three steps: remove the mid cover, slide the top cover upward, and ...

Stairmaster Steppers 4400CL Step Chain Removal and Replacement

Jan 30, 2023

1. Remove the bottom cover. 2. Remove the step chain retainers. 3. Support the pedal arm. Unhook the pedal arm spring from the spring hanger. Lift the step chain up and off the clutch spocket and lower the pedal arm to the floor. 4. Remove the double-pitch master link (PN 21298SV) and bearing sleeve assembly from the step chain connection point on the pedal arm. 5. Remove the master ...

Concept2 Rower PM2 LCD Replace Instrux

Jan 08, 2023

There are two types of LCDs used in the PM2. The difference is the number of contact pads along the edges of the LCD. PN1416 has 43 contacts per side while PN1405 has 64 contacts per side. To determine which replacement type of LCD to use, check the number of black contact pads on the back (solder) side of the printed circuit board. This will require removing the printed circuit board from the PM2...