Edge Technologies Patriot 338, Operation Manual, Page: 81 / 272

PATRIOT
338/551
75
REV 10:2019
5.6 Pusher Drive Chain
Caution bar feeder and lathe must be emergency stop for belt
adjustment
Warning properly trained personnel are required to adjust drive belt
The pusher drive chain is a roller type chain with a master link connected to the carriage. The
chain runs the length of the machine contained inside of a channel. The chain is driven by a
servo drive motor via gear reduction system opposite of the lathe for adequate torque
production.
Anytime the drive chain requires adjustment follow the procedure below.
1. Place bar feeder and lathe into emergency stop.
2. Material may need to be removed form channel if the pusher cannot be moved without
obstruction.
3. Open bar feeder hood.
4. On older Patriot models the front sheet metal requires lowering to access the locking
screws. Later built models will have 2 holes in the sheet metal for access.
5. Loosen the 2 locking screws (1) for the tensioner.
6. Rotate screw (2) clockwise to tighten the chain for suitable tension. Warning do not set
chain tension too tight, as this will stretch the chain and potentially lead to chain
failure.
7. Tighten the locking screws (1).
8. Reattach front cover if removed earlier.
9. Close the bar feeder hood.
10. Reset emergency stops and test pusher operation with the hand held pendant.