17
18
4
1
14
Key
No.
1
2
3
4
5
6
7
8
9
10
7
8
9
5
Fig.1. Parts Drawing
Part No. Description Qty
7511
4240
7239
7473
7365-1
7937
7936
7938
4684
4110
Iron base 1 11 7964 Speed control 1
HH capscrew 1/2-13 x 1 2 14 7930 HH capscrew 1/4-20 x 1 1/2 2
Lockwasher 1/2 2 15 7482 Spacer black 2
Hopper support 1 16 7932 Whiz nut 1/4-20 2
Vertical u-channel 2 17 7442-1 Moisture cover 1
HH capscrew 3/8-16 x 3/4 4 18 7375 Hopper 1
Nylock 3/8-16 4 19 7507 Dust shield 1
HH capscrew 3/8-16 x 2 1/4 2 20 7126 Plastic rivet 4
Clevis pin 3/8 x 2 3/4 4
Circle cotter 1 1/8 4
10
11
6
3
Key
No.
2
Part No. Description Qty
6
16
19
15
20
20
2
41
Key
No.
40
38
11
39
40
34
30
29
38
35
32
31
33
42
42
37
36
42
24
23
25
25
22
Fig. 2. Gate Assembly, Fan, Motor, Speed Control Parts
1
FUSE
10 AMP
28
27
22
Option
23
24
25
27
28
29
30
31
Option
32
33
Part No. Description Qty Part No. Description Qty
7512A
7505
7515
7513
7514
7430-4
7430-5
7529
7530
7522
7522-1
7521 Agitator
7523 Blocking plate
Motor 12v DC 1 34 7524 Pivot plate 1
Motor 12v DC Heavy Duty 35 7528 Gate guide assembly (pair) 2
Whiz nut 10-32 2 36 7526 Opening plate with linkage 1
Fan aluminum 1 37 7527 Gauge control plate 1
Set screw 1/4-20 x 5/16 2 38 7518 RH screw 10-24 x 3/8 5
Battery harness 6ft. 1 39 7429 Flatwasher #10 1
Connector cap 1 40 7520 Bronze bushing 2
HH capscrew 1/4-20 x 1/2 3 41 7517
Flatwasher 1/4 2 42 7531
Nipple -- standard 1
Nipple -- synthetic
1
1
Key
No.
RH screw #10 x 1/2 lefthand
Wing nut 1/4-20
Whiz bolt 1/4-20 x 1/2
Flatwasher 1/4
1
1
1
1
3
51
Key
No.
Part No. Description Qty
50
53
43
52
47
49
48
48
45
44
64
46
Fig. 3. Cable Control (502) Parts Drawing
43
44
45
46
47
48
49
50
51
52
53
64
7435-1
7416
7417-1
4009
7432
7426
7418
7419
7422
7427
7428
Push/pull cable 6 ft. 1
Cable bracket SS 1
Cable mount 1
Safety clip 1
Cable clamp 1
Throttle stop and screw 1
Shoulder washer #8 1
External lock washer #8 1
PH screw 8-32 x 5/16 1
Nylock 10-24 1
PH screw 10-24 x 1/2 1
7589 Knob push/pull cable
1
Key
No.
54
55
56
57
58
59
Fig. 4. Foot Control (Model 501) Parts Drawing
Part No. Description Qty
7591
7592
7593
7940
4110
7934
Foot mount bracket 1 60 7935 Whiz nut 5/16-18 2
Foot T- control 1 61 7938 HH capscrew 3/8-16 x 2 1/4 1
Foot gate link 1 62 7939 Flatwasher 3/8 2
Clevis pin 3/8 x 1 3/4 1 63 7936 Nylock 3/8-16 1
Circle cotter 1 1/8 1
HH capscrew 5/16-18 x 3/4 2
60
57
Key
No.
54
61
62
59
55
56
62
58
63
Part No. Description Qty
4
Cleaning
1. Wear appropriate safety equipment, i.e., safety glasses. Use air to blow excess fertilizer off the
mower and broadcaster after each day's use.
2. Do not oil the opening gate and guides until the end of the season since the fertilizer will
collect, liquify and solidify.
Storage
1. Store/transport broadcaster upside down (on hopper) with moisture cover removed.
2. For off-season storage, clean broadcaster and coat all metal parts with light oil.
Troubleshooting
Symptom Possible Cause Action
Opening gate won’t close
completely
Fan won’t run Broken or corroded connection
Fertilizer has solidified in
guides
Remove guides and clean them.
DO NOT use oil or WD-40 on
guides or opening gate.
Check continuity; check for broken
wire; clean corroded terminals.
No power to speed control
Check voltage at connector
(12 vdc). Check fuse.
Damaged speed control
Power harness must connect
directly to battery, not auxiliary
circuit. Replace speed control.
Erratic spread pattern Lumps in material. Break up lumps in material.
Limited Warranty
We warranty each new JRCO Electric Broadcast Spreader sold by us to be free from manufacturing defects in normal
service for a period of 90 days commencing with delivery to the original retail user.
Our obligation under this warranty is expressly limited, at our option, to the replacement or repair at JRCO, Inc.
(Minneapolis, Minnesota), or at a service facility designated by us, of such part or parts as inspection shall disclose to have
been defective. This warranty does not apply to defects caused by damage or unreasonable use (including failure to
provide reasonable and necessary maintenance) while in the possession of the consumer.
This warranty is void should the product be repaired or modified in any way not authorized by JRCO, Inc.
We shall not be liable for consequential damages of any kind, including but not limited to consequential labor costs or
transportation charges in connection with the replacement or repair of defective parts.
Any implied or statutory warranties, including any warranty of merchantability or fitness for a particular purpose, are
expressly limited to the duration of this written warranty. We make no other express warranty, not is anyone authorized to
make any in our behalf.
12
WIRING DIAGRAM FOR JRCO BROADCASTERS WITH
ELECTRONIC SPEED CONTROL
CAUTION !
CONNECT DIRECTLY TO THE BATTERY NOT AN AUXILIARY CIRCUIT.
DO NOT REVERSE POLARITY.
DO NOT SHORT CIRCUIT LOAD.
CASE IS FULLY INSULATED; NO ELECTRICAL CONNECTION REQUIRED.
MOTOR MUST CONNECT TO CONTROL. USE NO OTHER ELECTRICAL CONNECTION.
CONNECT BOTH PLUGS BEFORE APPLYING POWER.
WIRING FOR 501E & 502E
BLACK
-
BATTERY
12VDC
RED
POWER WIRING
HARNESS PN 7430-4
WIRING FOR 501G & 502G
+
FUSE
10A
RED
BLACK
CONTROL BOX PN 7964
4
1
CONTROL BOX PN 7964
8
OFF
MOTOR PN 7512A
BLACK
BLACK
BROWN
MOTOR PN 7505
ORANGE
BUTT
CONNECTOR
PN 7962
RED
MOTOR HARNESS
PN 7899
BLACK
-
BATTERY
12VDC
RED
POWER WIRING
HARNESS PN 7430-4
+
RED
BLACK
1
FUSE
10A
4
YELLOW
8
OFF
BLACK
BLUE
13
Mower
Spread
Centering
Spread
Centering
Material Flow at
Setting
Specified Gate
position
(ft)
Width
ft.
2 lb per
1000 sq.
ft.
1 lb per
1000 sq.
position
(ft)
Width
2 lb per
1000 sq. ft.
1 lb per
1000 sq. ft.
Gate Settings: Full Fan Speed, Full Width Gate Settings: Speed Controlled Width Calibration
3 1 1/2 3 28 B-C n/a 1 1/2 14 I
3 3 5 1/2 10 I-J 1 1/2 3 5 J
4 3 3/4 7 10 I-J 2 3 3/4 5 J
2 3 5 10 I-J 1 1/2 3 5 J 1 1/2 lb at 3
3 4 7 1/2 10 I-J 2+ 4 5 J
2 6 12 14 H 3 6 7 J 2 1/2 lb at 7
3 9 n/a 14 H 4 1/2 9 7 J
4 12 n/a 14 H 6 12 7 J
2 2 1/2 4 8 I-J Not Recommended 1 1/2 lb at 2 1/2
3 3 1/4 5 1/2 8 I-J
4 4 7 8 I-J
4 12 n/a 14 I-J 6 12 7 J
2 6 12 14 I-J 3+ 6 7 J 2 1/2 lb at 6
3 5 1/2 8 1/2 10 I-J
4 7 10 10 I-J
2 4 7 10 I-J Not Recommended 1 3/4 lb at 4
(mph)
Appendix A. JRCO Electric Broadcast Spreader Settings for Seeds
speed
Material
3 9 n/a 14 I-J 4 1/2 9 7 J
2 7 13 14 G-H 3 1/2 7 7 J 2 1/2 lb at 7
2 2 3 3/4 10 I-J 1 2 5 J 1 3/8 lb at 2
3 10 n/a 14 G-H 5 10 7 J
4 13 n/a 14 G-H 7 13 7 J
4 5 10 10 I-J 3 5 5 J
4 2 4 28 B-C 1 2 14 I
2 1 2 28 B-C n/a 1 14 I 2 1/4 lb at 1
14
inert matter
Quick Clover Mixture (72%
rye, 11% blue grass, 11%
creeping fescue and 6%
fescue and 4% inert matter)
blue grass, 35% creeping
fescue, 10% chewings
Lawn Seed Mixture (51%
Rye grass
Kentucky Blue Grass
Red fescue
Red Top
Highland Bent
White Dutch Clover
n/a = Not applicable
Note: Use blocking plate to reduce the amount of seed spread by one half.
POSITION
Speeds greater than those listed on the above chart are
NOT
reccomended.
Spreading at faster than reccomended speeds may cause un-even application.
To determine mower speed, set two stakes 88 feet apart and record time it takes to go from
one stake to the other. See table below to determine speed.
CENTERING
WIDTH
SPREAD
(RHEOSTAT
GATE SETTING
Pounds per 1000 sq. ft.
2.5 lb 3 lb 4 lb 5 lb 6 lb SETTING)
3 8 9 9 1/2 10 11 25 C
4 9 9 1/2 10 1/2 13 NA 25 C
5 9 1/2 10 13 NA NA 25 C
SPEED
MOWER
2 mph 6 1/2 7 8 1/2 9 9 1/2 25ft C
2 6 6 1/2 7 8 1/2 9 18ft D-E
3 7 7 1/2 8 1/2 9 1/2 10 18 D-E
4 8 8 1/2 9 1/2 10 11 18 D-E
5 8.5 9 1/2 10 12 NA 18 D-E
6 9 1/2 10 11 NA NA 18 D-E
2 5 5 1/2 6 6 1/2 7 12FT F-G
3 5 1/2 6 7 8 8 1/2 12 F-G
4 6 1/2 7 8 9 9 1/2 12 F-G
5 7 8 9 9 1/2 10 12 F-G
6 8 8 1/2 9 1/2 10 11 12 F-G
88 ft. 30 seconds 2 MPH
88 ft. 20 seconds 3 MPH
88 ft. 15 seconds 4 MPH
88 ft. 10 seconds 6 MPH
Distance Time Speed
88 ft. 7.5 seconds 8 MPH
Appendix B: JRCO Broadcast Spreader settings for Commercial, Pelletized fertilizers
15
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