Rev.4
28
FILM CLAMP
When the Film Feed Drive System stops, the Film Clamp Bar closes on the film, holding it in place.
At this point, all the force on the film is being confined to the Film Unwind area and not the Film Feed Drive
System.
The Film Clamp Bar must have a solid hold on the film along the full length of the bar. If not, loosen the two
Hex Head Bolts that mount the bottom of the Clamp Bar. Then slide the Clamp Pivot in either direction until the
Clamp Bar is flush with the film, then tighten the Hex Head Bolts
Start the machine and watch the Film Clamp in operation. Notice if there is clearance for the film to pass
through the Film Clamp. If the film hangs up on the Film Clamp, then slightly adjust the Clamp Pivot again to
achieve the clearance needed for free travel of the film.
CAUTION: TURN THE MAIN DISCONNECT ON THE CONTROL PANEL TO THE "OFF"
POSITION AND REMOVE THE AIR SUPPLY FROM THE MACHINE BEFORE MAKING
ADJUSTMENTS.
FILM FEED CHAIN TENSION
The tension on the Film Feed Chain should be checked periodically for
proper setting (See Figure Five).
To Adjust:
1. Loosen Mounting Bolt beneath
Chain Tensioner with wrenches as shown
in Figure Seven.
2. Turn Chain Tensioner counter-
clockwise until Tensioner Arm is
deflected 15 degrees as indicated by
Gauge on Tensioner Body.
3. Retighten the Bolt securely.
4. Make sure Idler Bolt and
Sprocket is secure before starting
drive.
FIGURE SEVEN
Summary of Contents for Hamer 540
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Page 55: ...Rev 4 45 SECTION TWO MODEL 540 ASSEMBLY DRAWINGS...
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