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REMOVAL AND REPLACEMENT OF 504FH TINES (SIFTING BELT)
TOOLS RECOMMENDED:
Safety support is REQUIRED! 3/8” ratchet, 6” socket extension and 1/2” socket
(6 point) or a 1/2” combination wrench.
The tines are secured on the retaining bar by a spacer washer and a locknut. Loosen off the retaining
washer and nut and remove the old tine. Reapply a small amount of anti-seize to the threaded stud before
reassembling. Start the washer and nut back onto the threaded stud, leaving enough room to allow the tine
to be positioned underneath.
Tines should be parallel to each other and to the conveyor. Be sure the tines are positioned next to the
retaining bolt and well secured under the retaining washer and nut. Tighten the retaining nut 18 to 20 ft-lbs.
REMOVAL AND REPLACEMENT OF 504F-1 TINES (SOLID BELT)
TOOLS RECOMMENDED:
Safety support is REQUIRED! Impact gun or ratchet, 6” socket extension and
9/16” socket (6 point), large flat blade screwdriver, 9/16” combination wrench, drive torque wrench.
The tines are secured under the retaining bars (516A/516B) and kept in position by a series of divots on the
retaining bars. Loosen conveyor bolts (SIX REVOLUTIONS MAXIMUM). Bolts on both sides of any tine must
be loosened in order to remove and replace the tine. The center bolts are secured by wing nuts that will fall
to the inside of the belt if the bolts are loosened more than 6 turns. Marking the side of the 9/16" socket with
a bright colored line will allow you to count the revolutions while loosening a bolt. If a tine is to be replaced
next to the belt chain, the end bolts that secure the chain to the retaining bar must be loosened from the side
location of the machine.
Once the bolts are loosened, place the screwdriver between the retaining bar and the backing strip and next
to the tine that you are removing. Pry the retaining bar away from the belt and remove the tine. Place the
new tine under the retaining bar and resting on the backing strip, make sure that it is positioned correctly
around the divot. Torque center bolts to 22 ft.-lbs. (30 Meter-Newtons). If a torque wrench is not available,
tighten the bolts so that the retaining bars are tight against the spacer washers on which they sit. If the
retaining bars bend when tightening, back off until the retaining bar is straight. Torque end bolts to 40ft.-lbs.
(54 Meter-Newtons).
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