Conv-011 Instructions 06-05

CONV-011: CONVERT HORIZ. MICROPULSE TO SLIDE GATE
Maguire Products, Inc.
610-459-4300
maguire.com
6/05/06
Initial Setup
1) Disconnect all electrical power.
2) Disconnect the air supply.
3) Empty all Hoppers.
These instructions include removing the slide gate valve body assembly, known as the “valve
deck”, to access the slide gate assemblies. It is possible, but difficult, to perform this procedure
without removing the valve deck. Read through these instructions and decide for yourself how to
proceed.
Remove Valve Deck
1) Remove all air lines from air cylinder fittings, after marking them for proper re-installation.
2) Remove Weigh Bin.
3) Remove Rear Window:
(6) 1/4-20 Button Head Screws & Washers [need 5/32 Hex Key]
Note: The center, left screw is extra long to retain the air lines.
*Save Hardware!
4) Remove Valve Deck:
Note: Be careful that deck does not slam into Weigh Bin Bracket when last screw is removed.
a) WSB 140 with single four component Hopper:
Remove (4) 3/8-16 Button Heads & Nyloks [need 7/32 Hex Key & 9/16 Wrench/Socket]
b) WSB 140-R with Removable Hoppers:
Remove the Removable Hoppers.
Remove the Fixed Hopper-(2) 1/2-13 x 5” bolts [need 3/8 Hex Key & 3/4 Wrench/Socket]
Remove the Valve Deck-(4) 3/8-16 Button Heads & Nyloks [need 7/32 Hex Key & 9/16 Wrench/Socket]
(Two of these bolts also the aluminum Hopper Mounting Blocks.)
Remove Micro-Pulse Valve
Note: Refer to the installation drawing, included with your kit.
1) Remove the (2) speed-controllers (flow control valves) from the air-cylinder. Replace them with (2) the black
plastic elbows included with your kit.
2) Remove one of the ؼ [6mm] stainless steel guide rods, on which the valve “rides”. Do this by removing the
¼-20 “Nylok” nut on the end.
3) Loosen the jam nut & clevis on the air cylinder shaft. We use liquid thread lock (LockTite) for assembly, so
you will have to pull hard on the wrench.
4) Loosen the large “cylinder nut” that fastens the air cylinder to the valve body. By turning the air cylinder, you
can remove the cylinder shaft from the clevis.
5) Remove the jam nut from the air cylinder shaft. Remove the Valve Restrictor.
1
CONV-011: CONVERT HORIZ. MICROPULSE TO SLIDE GATE
Maguire Products, Inc.
610-459-4300
maguire.com
6/05/06
Replace Slide Valve
Note: Refer to the installation drawing, included with your kit.
1) Slide (2) flat washers onto the air cylinder shaft.
2) Re-install the jam nut onto the air cylinder shaft. Thread the jam nut on to the end of the threads.
3) Move the new slide gate/clevis assembly into position. One side of the slide valve should be “hooked” onto the
guide rod.
4) By turning the air cylinder, thread the shaft into the slide valve clevis. Once the threads are started, add a drop
of Lock-Tite.
5) Hold the air cylinder in place in it’s prober position. Adjust the clevis so that the edge of the slide valve is just
at the edge of the valve opening when the cylinder is fully extended.
6) Tighten the jam nut against the slide valve clevis.
7) Tighten the large “cylinder nut” to secure the air cylinder to the valve body. Ensure that the plastic air fittings
are oriented to one side, like the other cylinders.
Re-Assembly
1) Re-install the valve deck.
2) Re-connect the air lines to each of the air cylinders. Note that the lines to the valve(s) that you have just
changed, should be reversed from their previous configuration.
3) Re-install the plastic rear window. Be especially careful when re-installing the middle, left cap screw. The air
lines should be tucked behind the screw. Be careful not to damage the tubing.
4) Reinstall the hoppers, if you have removed them.
5) Restore electrical power and air-pressure to the blender.
Controller Settings
1) Change the “pulsed output” parameter(s) {CPO for COLOR, APO for ADDITIVE} to _PO 00000.
2) Change the “percent target” parameter(s) {CPT for COLOR, APT for ADDITIVE} to _PT 00000.
3) Perform a RATE CALIBRATION for the slide gate that was changed.
These procedures are outlined in the WSB Operations Manual.
4) Test operation of the slide gate(s) that you have changed. Ensure that the valve is “normally closed”. If this is
not the case, then simply reverse the air lines to the cylinder.
Parts List
1 – WSB-140 Slide Valve (small) – Part# 539-1VS
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with clevis (ncl-01), and clevis pin installed.
2 – Plastic Swivel Elbow, 1/8 NPT x 5/32 Press-In – Part# fpe-5/32
2 – Flat Washers– Part# sw4
Installation Instructions and Drawings
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CONV-011: CONVERT HORIZ. MICROPULSE TO SLIDE GATE
Maguire Products, Inc.
610-459-4300
maguire.com
3
6/05/06
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