Grain Systems Bucket Elevtors, Conveyors, Series II Sweeps PNEG-1043 - Manual (Page 19)

19
Series 2 Chain Conveyors
Slack Chain Assembly
The GSI Group offers a slack chain detector
system as an option for its 26” and 32” tall Series
II enmasse conveyors. Depending on working
conditions and/or environment, either a NEMA 4
or a NEMA 9 limit switch is available.
Begin installation of optional slack arm assembly by
first cutting a 12” x 5” rectangular hole in the head
section cover; see illustration below.
Next, center the slack chain assembly over the
rectangular opening. Mark the locations for the
four (4) 7/16” diameter holes. Temporarily re-
move the slack chain assembly, and drill the four
7/16” diameter holes.
Before attaching slack chain assembly to the
conveyor, apply sealant to bottom surfaces of
slack chain assembly.
Fasten slack chain assembly to conveyor with 3/8”
hardware. See illustration below regarding direc-
tion of slack chain assembly on the conveyor.
After installation, check that the clearance be-
tween the UHMW paddle in the slack chain
assembly and the UHMW flights on the chain is
approximately 1/2” to 3/4”. Adjust if necessary.
Options
Top Mount Slack Chain
with NEMA 4 limit switch
Top Mount Slack Chain
with NEMA 9 limit switch