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Hutchinson/Mayrath ASSEMBLY INSTRUCTIONS
The following instructions are to be used for assistance with the set-up and installation of equipment, accessories,
and serviceable parts used on this machinery and are not meant to replace any operating or safety procedures
as outlined in the Operator’s Manual included with the power sweep.
This safety symbol is used throughout these instructions to alert you to information about
unsafe actions or situations, and will be followed by the word DANGER, WARNING, or CAUTION.
Be Alert! Your safety and the safety of others is involved.
DANGER - Indicates immediate hazards that may result in severe injury or death. WARNING - Indicates unsafe actions
or situations that may cause severe injury, death and/or major equipment or property damage. CAUTION - Indicates
unsafe actions or situations that may cause injury, and/or minor equipment or property damage.
Publication No. 1046746
9/15 0402189C 1046746-1
©2015 Hutchinson/Mayrath All Rights Reserved
Clay Center, KS. Printed in the USA
ELECTRIC RACK & PINION DISCHARGE
CONVERSION INSTRUCTIONS
for use with the
13” MASS-TER FLOW
September 10, 2015
1. Remove the existing top cover from the discharge
spout for access to the drive shaft and gate. Retain
hardware for reassembly.
2. Remove and retain the roll pins securing the
sprockets to the shaft (See Fig. 1).
Loosen the lock collars on each side of the shaft.
Slide the existing shaft out of the weldment (it may
be necessary to use emery cloth or similar material
to clean any build-up on the shaft that may prevent
it from being pulled through the bearings).
Retain the sprockets for use when assembling the
conversion kit.
Installation Instructions
Before beginning assembly it is suggested to read through these instructions and lay out all items from
the kit to ensure all parts are accounted for. This not only helps you become familiar with the parts and
the assembly procedures, but also makes you aware of what tools, equipment or materials you may
need to complete the installation process.
These instructions are intended to be used as a guide for converting the 13” Mass-Ter Flow
manual discharge spout (P.N. 631302) to a discharge spout that utilizes an electrically operated
rack & pinion gate.
Fig. 1
Sprocket
& Roll Pin
Bearing w/ Lock Collar
(one on each end)
Remove
Existing Shaft
Sprocket
& Roll Pin
In order to mount the limit switch bracket to the
side channel, two 13/23” x 25/32” (10 mm x 20 mm)
slots must be cut into the bottom flange of the side
channel. Refer to Page 2 for the location and
dimensions of the slots.
9/15 0400723-2 1046746-2
Page 2
Installation Instructions (con’t.)
Slot Locations for Limit Switch Bracket
1. Use the dimensions in the illustration below to determine location of the slots. Once slots are cut, make sure
all edges are smooth and free of burrs, or other material as determined by the method used for cutting the slots.
Brake 90° Down
Flat Pattern
Brake 90° Up
2 15/32”
(63 mm)
2”
(51 mm)
13/32” x 25/32” Slots
(10 mm x 20 mm)
17 5/32”
(436 mm)
2”
(51 mm)
17 5/32”
(436 mm)
2 15/32”
(63 mm)
WARNING! Some materials can create flying debris when they are filed, cut or
drilled. Use the proper personal safety gear such as eye, ear and hand protection
when working with power tools and metal materials.
9/15 0400723-3 0400723-6 1046746-3
Page 3
Installation Instructions (con’t.)
1. Slide a 5/16” flat washer onto two of the 5/16” x 1”
bolts and insert the bolts into the slotted holes on
the limit switch mount bracket.
Attach the limit switch to the bracket as shown in
Fig. 2. Secure the switch using two 3/16” x 1 1/2”
stover bolts and lock washers.
Install Limit Switch
Limit Switch
Mount Bracket
Limit Switch
Lever Arm
3/16” x 1 1/2” Stove
Bolt & Lock Washer
5/16” x 1” Bolt, Flat
Washers, Lock Washer
& Non-Lock Nut
Limit
Switch
Fig 2
2. Position the bracket so the limit switch faces to the
inside of the slide gate weldment and the 5/16” x 1”
bolts line up with the slotted holes previously cut
into the side channel.
Secure the bracket using 5/16” flat washers, lock
washers and non-lock nuts, See Fig. 2 (it may be
necessary to adjust the limit switch for proper
operation, therefore the bolts can be left snug until
final adjustment).
Install the switch lever arm onto the limit switch.
The lever arm will also need adjustment to allow for
the 10° of travel required to engage the limit switch.
This will be adjusted during final assembly.
Install Shaft, Gearbox and Motor
1. Insert the new shaft (with keyway end towards drive
side) through one of the bearings, install the lock
collars and sprockets onto the shaft as it is slid
through and insert shaft into the other bearing
(ensure sprocket hubs are facing each other).
2. Locate the end of the shaft on the drive side (keyed
end) so it extends 7 3/4” (197 mm) from the side of
the weldment (See Fig. 3).
Secure lock collars to hold shaft in place.
3. Remove the hardware securing the drive side bearing.
Slide the gearbox mount plate onto the shaft. Loosely
fasten the plate using the hardware removed from
the bearing, inserting the bolt and flat washer
from the outside of the mount plate with the lock
washer and nut on the inside of the slide gate
weldment (See Fig. 3 below). Do Not tighten
completely at this time.
Fig. 3
5. Position the sprockets on the shaft, aligning them
with their respective mounting holes and secure
using the roll pins previously removed.
6. Temporarily position the slide gate on top of the
sprockets and check to see that the sprockets align
with the roller chains. If necessary, loosen the lock
collars and reposition the shaft to ensure sprockets
are properly aligned. Remove slide gate and tighten
lock collars.
7. Slide the gearbox and 1/4” x 4” long key onto the
shaft (See parts page on Page 5). Secure the
gearbox mount plate to the bottom of the gearbox
using four 3/8” x 1” bolts and lock washers, then
tighten the hardware securing the mount plate and
bearing to the side of the slide gate weldment.
8. Install the 1/2 HP electric motor onto gearbox using
the mounting hardware provided with the motor.
Sprockets
(hubs facing
each other)
7 3/4”
(197 mm)
Extend Shaft Past
Side of Weldment
Motor
Mount Plate
Bolt & Flat Washer on
Outside of Bracket
Begin with the 7 3/4” measurement, if
necessary, adjust shaft accordingly to
ensure sprockets align with chains
9/15 0400723-4 1046746-4
Page 4
Installation Instructions (con’t.)
Install Slide Gate Stops
1. Use the dimensions in the illustration below to
determine location and orientation of the bracket
stops on the slide gate.
Once properly positioned, weld into place as shown
in Fig. 4.
WARNING! Use the proper personal
safety gear such as eye, ear and hand
protection when engaged in hot work.
Keep flammable materials away from
the work area.
1”
(25 mm)
2”
(51 mm)
2”
(51 mm)
1/8”
2 Plcs
15 3/4”
(400 mm)
1”
(25 mm)
15 3/4”
(400 mm)
Shown for
Reference Only
Fig. 4
WARNING! A main power disconnect
switch that can be locked in only the
“OFF” position shall be provided. This
shall be locked whenever work is being
done on the equipment.
Electric motors and controls shall be installed by a
qualified electrician and must meet the standards
set by the National Electric Code and all local and
state codes.
2. Connect power to the limit switch and electric motor.
3. Position the slide gate so that each sprocket is in
line with its respective roller chain and the limit switch
lever arm is positioned between the two stops (the
ends of the roller chain positioned closest to
the edge of the slide gate will be oriented
towards the sprockets).
Temporarily set the cover into position. Check the
distance between the top of the slide gate and
bottom of the cover. The slide gate should barely
contact the bottom of the cover.
If adjustment is required, loosen the hardware
securing the bearings, this will allow the shaft,
bearings and sprockets to be moved up or down for
correct positioning. Tighten bearing hardware once
slide gate is properly positioned.
4. Set the limit switch lever arm so that when the gate
is closed the limit switch is engaged and the motor
shuts off (lever arm has to rotate 10° from its home
position in order to engage the limit switch).
Check operation of gate opening and closing, adjust
limit switch arm as necessary to ensure proper
operation of the slide gate.
5. Install the cover and secure using the hardware
previously removed.
Ref.
No. Part
No. Description
1023415 Gearbox, HMQ 621 w/ 1” Bore
1026527 Motor, 1/2 HP Electric
(115-208/230V, 60 hz, 1PH)
1033296 Motor, 1/2 HP Electric
(220 V, 50 hz, 1 PH)
1023414 Motor, 1/2 HP Electric
(575 V, 60 hz, 3 PH)
1026526 Motor, 1/2 HP Electric
(208-230/460 V, 60 hz, 3 PH)
1045676 Motor, 1/2 HP Electric
(220/380/440 V, 50 hz, 3 PH)
1036192 Bracket, Limit Switch Mount
1046515 Shaft, 1” x 45 3/8” f/ Mass-Ter
Flow Spout w/ Electric Motor
1
2
(2)
(2)
(2)
(2)
3
4
9/15 0400723-7 1046746-5
Page 5
PARTS LIST
Electric Rack & Pinion Discharge Conversion Kit
f/ 13” Mass-Ter Flow
1
35
6
4
2
11
12
10
14
15
8 13
11
10
9
7
Ref.
No. Part
No. Description
1017007A Limit Switch, Square-D Type
1017199 Lever Arm f/ Limit Switch
1036191 Plate, Gearbox Mount
1036193 Stops f/ Slide Gate (not shown)
4061A1 Key, 1/4” sq. x 4” long
6384C *Sprocket, 50B 15-1” bore
3180R1 *Roll Pin, 5/16” x 2 1/4”
4339C *Bearing Bracket w/ Bronze Bearing
631300 *Slide Gate
1045385 *Discharge Spout Body Weldment
631299 *Cover
5
6
7
8
9
10
11
12
13
14
15
These are existing items and are not
included in the conversion kit. They
are shown as a reference only.
*
Hutchinson/Mayrath P.O. Box 629 Clay Center, KS. 67432
Ph. 785–632–2161 Fx. 785–632–5964 Toll Free 800–523–6993
Hutchinson/Mayrath
A Division of GLOBAL Industries Inc.
www.hutchinson-mayrath.com
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