Nustep TRS 4000, Service Manual

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TRS 4000
support@nustep.com - (800) 322-4434 - (734) 769-3939 x 5
support@nustep.com - (800) 322-4434
Rear Shaft & Timing Belt Sprockets
NOTE: We recommend replacing both the shaft and sprockets if either wear out.
For S/N < 427184, it is necessary to replace the poly-v sheave when replacing
the rear shaft.
Tools Required
1/8" hex key
½” socket and ratchet
Torque wrench
4. Loosen 4 set screws on left and
right side rear bearings. 5. Loosen 4 nuts of bearings.
Remove right bearing only.
42069 Rear Shaft & Sprockets 5-1-05
38
1. Remove covers.
See Cover Removal instruction.
2. Remove poly-v belt and sheave.
For S/N < 428325, see Poly-V Belt & Sheave instructions .
For S/N > 428326, see Poly-V J6 Flex Belt & Sheave instructions.
3. For S/N < 428173, unhook timing
belt springs.
See Timing Belt Springs
instructions.
For S/N > 428174, unhook belt
idler spring.
See Flat Belt & Belt Idler Spring
instructions.
To avoid injury, or damage to the
product, use caution when removing or
installing. Hold arm weldment when
unhooking springs to prevent weldment
from falling forward.
!
CAUTION