Ransburg Overhead Electric Reciprocator ER-8100 - Manual (Page 21)

CHAIN REPLACEMENT
INSTRUCTIONS
1. Remove the 6-inch inner tube all the way to the
top. Remove the two (2) cover bolts opposite the
cover overhang end. Tilt the top cover up half way.
The friction brake must be locked-out to service the
>
The cover will hit the encoder if opened
too far.
NOTE
drive chain. The 6 inch tube must be supported
before locking out the brake, otherwise it could
fall. The friction brake has a 7/32-inch thru-hole
located on the 1 1/2-inch diameter connecting rod
that the triple chain is attached to. A 3/16-inch
diameter pin can be inserted into the thru-hole to
lock the brake out when the 1 1/2-inch diameter
rod is pulled all the way out of the friction brake
plate. The 3/16- inch diameter pin will hold the
brake in the unlocked position.
2. Remove the 6-inch tube support and jog the
6-inch inner tube down, past the run-away limit
switch. The counter balance weight will bottom-out
on the upper hard stop with the weight in the
uppermost position. Insert a 1/2-inch steel rod
(approximately 8-inches long) through the holes
located on the side of the weight tube near the top
to hold the weight at the top of the weight tube.
The rod must be under the weight. Jog the
6-inch inner tube up a small amount to release the
tension on the counter balance side of the drive
chain and support the 6-inch tube appropriately.
3. With the 6-inch inner tube supported from the
bottom and the counter balance weight supported
by the 1/2-inch diameter rod, remove the triple
master link from the counter balance weight.
Attach a wire through the holes in the end of the
chain link and make a loop. Attach a small rope
to the loop in the wire. The chain can now be
lowered down to rest on the 6-inch tube.
4. The supported 6-inch inner tube can now be
lowered and removed. The triple master link on
top of the 6-inch inner tube can now be removed.
The wire loop can also be removed from the old
chain. Run the wire through the counter balance
weight end of the new chain and loop. Attach the
rope used to lower the old chain to the loop.
5. Attach the master link to the 6-inch inner tube
making sure all the master link side plates are lined
up. Make sure the new chain, with the cams, is
oriented in the same direction as the old chain.
6. From the top of the reciprocator, pull the new
chain up the 10-inch pipe and raise the 6-inch
inner tube as appropriate. When enough chain
has been pulled up, drape the chain over the
sprocket. Attach the triple master link to the counter
weight and chain making sure all the master link
side plates are lined up. Re-install the dual roller
guide and the two (2) single roller guides to the
base plate of the 10-inch tube.
7. Remove the 6-inch tube support and jog the
6 inch inner tube down to take the pressure off
of the 12-inch rod holding the counter balance
weight; remove the 1/2-inch rod.
8. Raise the 6-inch tube to the top and remove the
7/32-inch diameter lock-out pin in the friction brake.
9. Replace the top cover and tighten the four (4)
bolts.
18
Electric Overhead Reciprocator - Maintenance
Ransburg
LN-9801-05.1