Ma842c
User Manual: Ma842c
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3261 Series Gearheads
Identification, Specifications, Applications,
and Repair Parts Lists
MA842-20 6/2000
MA842CJune 2000
Chore-Time Warranty 3261 Series Gearheads
2MA842C
Chore-Time Equipment (“Chore-Time”) warrants each new Chore-Time product manufactured by it to be free
from defects in material or workmanship for one year from and after the date of initial installation by or for the
original purchaser. If such a defect is found by the Manufacturer to exist within the one-year period, the
Manufacturer will, at its option, (a) repair or replace such product free of charge, F.O.B. the factory of
manufacture, or (b) refund to the original purchaser the original purchase price, in lieu of such repair or
replacement. Labor costs associated with the replacement or repair of the product are not covered by the
Manufacturer.
Conditions and Limitations
1. The product must be installed by and operated in accordance with the instructions published by the
Manufacturer or Warranty will be void.
2. Warranty is void if all components of the system are not original equipment supplied by the Manufacturer.
3. This product must be purchased from and installed by an authorized distributor or certified representative
thereof or the Warranty will be void.
4. Malfunctions or failure resulting from misuse, abuse, negligence, alteration, accident, or lack of proper
maintenance shall not be considered defects under the Warranty.
5. This Warranty applies only to systems for the care of poultry and livestock. Other applications in industry
or commerce are not covered by this Warranty.
The Manufacturer shall not be liable for any Consequential or Special Damage which any purchaser may suffer
or claim to suffer as a result of any defect in the product. “Consequential” or “Special Damages” as used herein
include, but are not limited to, lost or damaged products or goods, costs of transportation, lost sales, lost orders,
lost income, increased overhead, labor and incidental costs and operational inefficiencies.
THIS WARRANTY CONSTITUTES THE MANUFACTURER’S ENTIRE AND SOLE WARRANTY AND
THIS MANUFACTURER EXPRESSLY DISCLAIMS ANY AND ALL OTHER WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, EXPRESS AND IMPLIED WARRANTIES AS TO
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSES SOLD AND DESCRIPTION OR
QUALITY OF THE PRODUCT FURNISHED HEREUNDER.
Chore-Time Distributors are not authorized to modify or extend the terms and conditions of this Warranty in any
manner or to offer or grant any other warranties for Chore-Time products in addition to those terms expressly
stated above. An officer of CTB, Inc. must authorize any exceptions to this Warranty in writing. The Manufacturer
reserves the right to change models and specifications at any time without notice or obligation to improve previous
models.
Effective: June 2000
Chore-Time Equipment
A Division of CTB, Inc.
P.O. Box 2000 • Milford, Indiana 46542-2000 • U.S.A.
Phone (219) 658-4101 • Fax (877) 730-8825
Email: ctb@ctbinc.com • Internet: http//www.ctbinc.com
Thank You
The employees of Chore-Time Equipment would like to thank your for your recent Chore-Time purchase. If a
problem should arise, your Chore-Time distributor can supply the necessary information to help you.
Chore-Time Warranty
3261 Series Gearheads Introduction
MA842C 3
The purpose of this publication is to provide the necessary information and part
numbers for field repair of gearheads.
Note: Field repaired gearheads or gears do not have warranty coverage.
Effective March 1, 1984, Chore-Time began stamping a three part identification code
number on the face of 3261 series gearheads. This code number is used to provide
information about the specification and capacities of the gearhead. See figure 1 and 2.
Effective July 1, 1988, Chore-Time began fastening a tag to the face of each gearhead
(instead of stamping) to provide information about the specifications and capacities
of the gearhead. See Figures 1 and 2.
Figure 1. Identification Code placement
This manual is designed to provide comprehensive planning, installation, safety, operation, and parts listing
information. The Table of Contents provides a convenient overview of the information in this manual. The Table
of Contents also specifies which pages contain information for the sales personnel, installer, and consumer (end
user).
Introduction
Gearhead Identification
MA842-17 3/95
2 6 84
326
261
61
2
1
Item Description
1 Gearheads manufactured between
March 1, 1984 and July 1, 1988, will
have a code stamped here
2 Gearheads manufactured from
July 1, 1988 to present will have a code
tag here.
23
2
61
61
6
MA842-18 3/95
2 6 84
25
4
3
1
Item Description
From March 1, 1984
to June 30, 1988 1 Indicates RPM (as rated with a 1725
RPM Motor). The first digit of the
gearhead’s RPM is shown here:
0=62 RPM
1=129 RPM
2=216 RPM
3=348 RPM
2 Indicates series of 3261 Gearhead.
The 3261-0 series all contain a "dash
number" following the 3261. This
part of the code identifies the :dash
number" of the gearhead.
3 Denotes year of manufacture
From July 1, 1988
to Present 4 Denotes RPM (based on 1725 RPM,
60 Hz Motor
5 Denotes Gearhead part number
Gearhead Specifications Chart 3261 Series Gearheads
4MA842C
The chart below profides gearhead specification information for the various
Chore-Time applications (fill systems, feeders, etc.).
*See Figure 3 on page 5.
Gearhead Specifications Chart
Gearhead Output
Shaft Size Pinion
Assembly* Motor
RPM Motor
Hz Output
RPM Primary Applications
3261-1 5/8 3249 1425 50 180 Model C, C2, H2, G, 2000
3261-1 5/8 3249 1725 60 216
3261-2 5/8 3249 1725 60 129 CF & MT Cage Feeders
3261-5 5/8 5046 1725 60 348 Model C, C2, H2, G, 2000, Pan Breeder
Adult Turkey Feeder
Model 55, 75, 90, HMC, 125, 108
3261-5 5/8 5046 1425 50 290
3261-5 5/8 5046 2850 50 580
3261-5 5/8 5046 3450 60 696
3261-6 7/8 3249 1425 50 180 Model 75, 90, HMC, 125, 108, CDS,
MULTIFLO
3261-6 7/8 3249 1725 60 216
3261-7 7/8 6104 1725 60 348 Model 75, 90, HMC, 125, 108, CDS, Fill
Loops
3261-7 7/8 5046 1725 60 348
3261-7 7/8 5046 1425 50 290 International Model 75, 90, HMC, 125, 108
3261-8 7/8 3249 825 60 62 MULTIFLO, Model 75, HMC
3261-8 7/8 3249 1725 60 129
3261-8 7/8 3249 1425 50 104 International ULTRAPAN
3261-9 7/8 3249 1425 50 52 ULTRAFLO (cage), ULTRAFLO Fill Loop.
ULTRAFLO Breeder Feeder
3261-9 7/8 3249 1725 60 62
3261-10 7/8 5046 1725 60 425 Model 108, 125, HMC, 75, 90
3261-10 7/8 5046 1425 50 348
3261-10 7/8 6104 1725 60 425
3261-10 7/8 6104 1425 50 348
3261-11 5/8 5046 2850 50 708 Pan Breeder Feeder, Model C, C2, H2, G,
2000, Flag Fill Systems 55, Adult Turkey
Feeder
3261-11 5/8 5046 1425 50 348
3261-12 7/8 25836 1725 60 78 ULTRAFLO (cage), ULTRAFLO Fill Loop,
MULTIFLO, ULTRAPAN, ULTRAFLO
Breeder Feeder
3261-12 7/8 25836 1425 50 62
3261-13 7/8 5046 1725 60 584 Model 90 (special application ULTRAPAN &
ULTRAFLO Breeder Feeder)
3261-13 7/8 6104 1425 50 474
3261-13 7/8 6104 1725 60 584
3261-13 7/8 5046 1425 50 474
3261-14 7/8 25836 1425 50 78 ULTRAFLO (cage) & ULTRAPAN
3261-14 7/8 25836 1725 60 95
3261-15 11/16 3249 1725 60 62 Collectors and Cross Conveyors
3261-17 5/8 5046 1725 60 696 Pan Breeder Feeder
3261 Series Gearheads Rebuilding Gearheads
MA842C 5
The 3261 series of gearheads can be successfully rebuilt to give additional years of
service if the following recommendations are observed.
Disassembly: All gears should be removed from the gearhead to allow the gears and bearings to be
inspected for wear and/or damage. Any gear or bearing that shows wear or damage
should be replaced.
Cleaning: Before reassembling the gearhead, all parts should be thoroughly cleaned in a
solvent. Particular attention should be given to the housing, bearings, and gears to
insure that all metal deposits are removed.
Reassembly: Replace all gaskets and Oil Seals.
Tighten the Output Shaft Nut to 60-70 ft/lbs [81.4-94.9 Nm] torque.
Check the pinion on the motor shaft to be syre it is not damaged or worn. Tighten the
setscrew.
Tighten the foru 5/16-18 hex head bolts to 140-145 in/lbs [15.8-16.4 Nm] torque in
an "x" fashion. See Figure 3.
Lubrication: Use ISO150 gear oil or S.A.E. 40W oil. Detergent oil is preferred if it contains non-
foaming agents. Most automotive detergent oils contain non-foaming agents.
All the gearheads require 9 ounces [266 ml] of oil (except 3261-9, 3261-12, and
3261-14 which require 13.5 ounces [400 ml] of oil).
Figure 3. Bolt tightening sequence and Pinion Identification
Rebuilding Gearheads
4
1
MA842-7 3/95
2
3
1/2" [13 mm] Dia.
1/2" [13 mm] Dia.
1/2" [13 mm] Dia.
5/8" [16 mm] Dia.
3249
(18 Tooth)
25836
(21 Tooth)
5046
(21 Tooth)
6104
(21 Tooth)
Pinion Identification
Two-Stage Gearhead Parts Listing 3261 Series Gearheads
6MA842C
*Output speeds are based on 60 Hz. 1725 RPM Motor.
**5186 is a 6-piece precision ground, matched set. Components should not be mixed (old and new).
***All helical gear units (-5, -7) should be updated to include a 2933-33 Thrust Washer.
Two-Stage Gearhead Parts Listing
Part Number
Item Description
(Output RPM)* 3261-1
216 3261-2
129 3261-5
348 3261-6
216 3261-7
348 3261-8
129 3261-10
425 3261-11
425 3261-13
584 3261-17
696
1 Adapter (Mach) 3174 3174 3174 3174 3174 3174 3174 3174 3174 3174
2 Gasket 3258 3258 3258 3258 3258 3258 3258 3258 3258 3258
3 Flange Bearing 3252 3252 3252 3252 3252 3252 3252 3252 3252 3252
4 Intermediate
Gear Assembly 24243 24244 24248 24243 24248 24244 24752 24752 28026 40926
5 Output Gear 24198 24198 24197 24198 24197 24198 24751 24751 28027 40925
6 Output Shaft 5187 5187 5187 6847 6847 6847 6847 5187 6847 5187
7 Oil Seal 5189 5189 5189 5189 5189 5189 5189 5189 5189 5189
**8 Two Row Spacer
Bearing 5188 5188 5188 5188 5188 5188 5188 5188 5188 5188
9 Housing (Mach) 29886 29886 29886 29886 29886 29886 29886 29886 29886 29886
10 5/8-11 Hex Jamb
Nut 5183 5183 5183 5183 5183 5183 5183 5183 5183 5183
11 5/16-18x5/8 Hex
Head Bolt 4412-1 4412-1 4412-1 4412-1 4412-1 4412-1 4412-1 4412-1 4412-1 4412-1
12 Oil Seal 4682 4682 4438 4682 4438 4682 4438 4438 4438 4438
13 1/8x7/16 Spirol
Pin 2960-2 2960-2 2960-2 2960-2 2960-2 2960-2 2960-2 2960-2 2960-2 2960-2
14 1/4 NPT Square
Head Plug 2755 2755 2755 2755 2755 2755 2755 2755 2755 2755
***15 Thrust Washer 2955-33 2955-33 2955-33 2955-33 2955-33 2955-33
16 3/16x7/16 2112-3 2112-3 2112-3 2112-3 2112-3 2112-3 2112-3 2112-3 2112-3 2112-3
17 Vent Plug 3523 3523 3523 3523 3523 3523 3523 3523 3523 3523
18 Drain Plug 30160 30160 30160 30160 30160 30160 30160 30160 30160 30160
MA842-22 6/2000
Location of
Intermediate Gear
for 216, 348, 425,
and 584 RPM
Gearheads
Location of
Intermediate Gear
for 129 RPM
Gearheads
123
43
5
16 6
7
8
9
18
10
11
12
15
17
14
113
3261 Series Gearheads Three-Stage Gearhead Parts Listing
MA842C 7
*Output speeds are based on 60 Hz. 1725 RPM Motor.
**5186 is a 6-piece precision ground, matched set. Components should not be mixed (old and new).
Three-Stage Gearhead Parts Listing
Part Number
Item Description
(Output RPM)* 3261-9
62 3261-12
78 3261-14
95 3261-15
62
1 Adapter (Mach) 14492 14492 14492 14492
2 Gasket 3258 3258 3258 3258
3 Flange Bearing 3252 3252 3252 3252
4 Intermediate Gear Assembly 24241 25834 25834 24241
5 Output Gear 24197 24197 28720 24197
6 Output Shaft 6847 6847 6847 35954
7 Oil Seal 5189 5189 5189 5189
**8 Two Row Spacer Bearing 5188 5188 5188 5188
9 Housing (Mach) 29886 29886 29886 29886
10 5/8-11 Hex Jamb Nut 5183 5183 5183 5183
11 5/16-18x5/8 Hex Head Bolt 2150 2150 2150 2150
12 Oil Seal 4682 4438 4438 4682
13 1/8x7/16 Spirol Pin 2960-2 2960-2 2960-2 2960-2
14 1/4 NPT Square Head Plug 2755 2755 2755 2755
15 Drain Plug 30160 30160 30160 30160
16 3/16x7/16 2112-3 2112-3 2112-3 2112-3
17 Vent Plug 3523 3523 3523 3523
18 Intermediate Gear Assembly 24242 24242 28722 24242
842-23 6/2000
23
X
16
XX
X
11
12
10 9
15
7
8
16 6
3
23
117
14
5
13
18
4
Three-Stage Gearhead Parts Listing 3261 Series Gearheads
8MA842C
Made to work.
Built to last.
Revisions to this Manual
Page No. Description of Change
Removed "R" suffix from all part numbers
Added -15 and -17 Gearheads
Contact your nearby Chore-Time distributor or representative for additional parts and information.
CTB Inc.
P.O. Box 2000 • Milford, Indiana 46542-2000 • U.S.A.
Phone (219) 658-4101 • Fax (877) 730-8825
E-Mail: ctb@ctbinc.com • Internet: http//www.ctbinc.com
Printed in the U.S.A.
