MASSEY FERGUSON 1843S User manual

1843S / 1843N
Three String Baler
Workshop Service Manual

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4283392M1 01-i
MASSEY FERGUSON®
1843S / 1843N
Three String Baler
4283392M1
CONTENTS
GENERAL INFORMATION ................................................................................................................................................01
ADJUSTMENTS..................................................................................................................................................................02
ENGINE MAINTENANCE...................................................................................................................................................03
DRIVE LINE.........................................................................................................................................................................04
PICKUP................................................................................................................................................................................05
ELECTRICAL ......................................................................................................................................................................06
HYDRAULICS .....................................................................................................................................................................07
KNOTTER............................................................................................................................................................................08
MAINFRAME.......................................................................................................................................................................09
TROUBLESHOOTING........................................................................................................................................................10
SPECIFICATIONS ..............................................................................................................................................................11
INDEX..................................................................................................................................................................................12
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01-ii 4283392M1
NOTES
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4283392M1 01-1
Contents
Massey Ferguson®
1843S / 1843N
Three String Baler
WORKSHOP SERVICE MANUAL
4283392M1
01 - General Information
Contents
Introduction .................................................................................................................................................... 01-3
Units of Measurement ............................................................................................................................. 01-3
Replacement Parts .................................................................................................................................. 01-3
Baler Identification ................................................................................................................................... 01-3
Operator's Manual Container .................................................................................................................. 01-4
Description .............................................................................................................................................. 01-5
General Maintenance Information ................................................................................................................. 01-8
Bolt Torque Values .................................................................................................................................. 01-8
Service Chart ......................................................................................................................................... 01-10
Wheel Assembly .................................................................................................................................... 01-12
Shearbolts ............................................................................................................................................. 01-13
Roller Chains ......................................................................................................................................... 01-13
Electrical ................................................................................................................................................ 01-14
Bearing Replacement (Eccentric Self-Locking Collar) .......................................................................... 01-14
Gib Key Removal and Installation ......................................................................................................... 01-15
Hydraulic Bale Density Control System ................................................................................................. 01-16
Gearbox ................................................................................................................................................. 01-17
Grease Fittings ...................................................................................................................................... 01-17
New Season Preparation ...................................................................................................................... 01-21
Storage .................................................................................................................................................. 01-21
Safety ........................................................................................................................................................... 01-22
Safety Alert Symbol ............................................................................................................................... 01-22
Safety Signs .......................................................................................................................................... 01-22
Safety Messages ................................................................................................................................... 01-22
Informational Messages ........................................................................................................................ 01-22
A Word to the Operator ......................................................................................................................... 01-23
Personal Protective Equipment (PPE) .................................................................................................. 01-23
Towing ................................................................................................................................................... 01-25
Fire Prevention ...................................................................................................................................... 01-25
Maintenance .......................................................................................................................................... 01-26
Engine Safety ........................................................................................................................................ 01-28
Battery Safety ........................................................................................................................................ 01-29
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01-2 4283392M1
Contents
NOTES
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4283392M1 01-3
General Information
GENERAL INFORMATION
INTRODUCTION
For additional operation and maintenance information,
see the engine Operation and service Manual included
with the baler.
The operation and maintenance instructions in this
manual come from much field testing and other data.
Some information will be general because of varying
conditions.
Right-hand and left-hand, as used in this manual, is
determined by facing the direction the baler will travel
when in use.
Units of Measurement
Measurements are given in metric units of measurement
followed by the equivalent in U.S. units. Hardware sizes
are given in millimeters for metric hardware and inches for
U.S. hardware.
Replacement Parts
To receive quick and efficient service, always remember
to give the dealer the following information:
• Correct part description or part number.
• Model number of your baler.
• Serial number of your baler.
Baler Identification
Machine Model No. _____________________________
Machine Serial No. _____________________________
Engine Serial No. ______________________________
Date of Delivery: _______________________________
Dealer Information
Dealer Name and Address:
____________________________________________
____________________________________________
____________________________________________
Dealer’s Telephone No. __________________________
Dealer’s Fax No. _______________________________
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General Information
01-4 4283392M1
Serial Number
FIG. 1: Each baler has a model and serial number on
the serial number plate (1). The baler serial number plate
is located on the left-hand side of the baler below the
engine.
FIG. 2: Engines have the serial number on a serial
number plate (1) located on the right-hand side in one of
two locations.
Engines also have the serial number stamped on the
engine block at the rear of the fuel injection pump or on
the crankcase.
Operator's Manual Container
FIG. 3: The Operator's Manual container (1) is located
under the access panel on the right-hand side of the
baler. Keep the Operator's Manual with the baler at all
times. Put the engine operation and maintenance manual
in the Operator’s Manual container.
FIG. 1
1
3SB-96009-17
FIG. 2
l96a-0092
1
FIG. 3
1
3SB-96078-54
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4283392M1 01-5
General Information
Description
General Description
This baler makes high quality, high density, high capacity
rectangular bales. The operation is fully automatic and
requires only one person. Windrows move continuously
straight through the baler from the ground to the baling
chamber. This results in very little crop damage.
Component Identification
FIG. 4: Front view
(1) Hitch
(2) Jack
(3) Tongue
(4) Pickup assembly
(5) Right-hand auger and pickup drive chain cover
(6) Charge chamber
(7) Auger (one on each side)
(8) Left-hand auger drive chain cover and door (one on
each side)
(9) Gauge wheel (one on each side)
(10) Bale chute
(11) Engine cover
(12) Bale density gauge
(13) Amber flashing warning lamps
(14) Red tail lamps
(15) Rear working lamps (not shown)
FIG. 4
12
3
2
1
5
46789
10
11
3SB-99e15b
14 13
15
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General Information
01-6 4283392M1
FIG. 5: Rear view
(1) Engine
(2) Knotter drive clutch
(3) Knotter drive chain
(4) Stuffer and pickup drive chain
(5) Knotters
(6) Knotter brake
(7) Knotter trip linkage
(8) Needle carriage
FIG. 6: Left-hand side view
(1) Needles
(2) Drive shaft
(3) Baler clutch
(4) Flywheel
(5) Gearbox
(6) Bale density cylinders
Drive Train
A four cylinder, air cooled Diesel engine runs the baler.
The baler uses a drive shaft between the engine and the
baler clutch.
From the baler clutch, the power is sent through the
flywheel and shearbolt. The shearbolt drives the gearbox,
which operates the baler’s mechanisms. A crank arm on
each side of the gearbox drives the plunger. The
right-hand crank arm drives an auxiliary shaft that drives
the stuffer, the pickup, the knotters, and the needles.
FIG. 5
8
6
3
4
2
5
7
1
3SB-96008-24
FIG. 6
3
5
16
2
6
4
3SB-96008-17
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4283392M1 01-7
General Information
Pickup Clutch
FIG. 7: The pickup clutch (1) protects the pickup
assembly. The clutch is both an overrunning clutch and a
slip clutch that can not be adjusted.
Pickup and Feeding
The crop is picked up and fed into the baler continuously
by a four bar pickup assembly. The height of the tines
above the ground is set by the pickup height adjustment
gauge plate. Flotation is supplied by a flotation spring that
supports much of the weight of the pickup assembly. An
adjustable flotation spring carries most of the weight of
the pickup. Gauge wheels protect the pickup when baling
on ground that is not even.
Two centering augers move material from the ends of the
pickup into the center of the pickup. The stuffer fingers
move the crop through the charge chamber into the bale
chamber. The plunger then compresses the crop against
the bale being formed in the bale chamber.
Hydraulic System
The hydraulic system is used to raise and lower the
pickup, swing the baler, and to control the bale density.
Power is supplied by a pump driven by a belt from the
drive shaft connected to the baler engine.
Bale Density System
The density and weight of the bale is determined by the
amount of resistance to the material moving through the
bale chamber. This resistance is determined by the
amount of hydraulic pressure applied to the density
control rails. Increasing the hydraulic pressure increases
the density and the weight of the bale. Decreasing the
hydraulic pressure decreases the density and the bale
weight.
Electrical System
The baler's 12 volt electrical system supplies power for
the baler control console, the starter on the engine, the
working lamps, and the solenoids in the hydraulic system.
FIG. 7
1
3SB-96019-03

General Information
01-8 4283392M1
The flasher warning lamps, tail lamps, and turn signal
lamps are controlled by, and receive power from, the
towing vehicle’s controls.
Baler Control Console
FIG. 8: The baler control console (1) is mounted in the
towing vehicle and is used to monitor and control the
functions of the baler.
GENERAL MAINTENANCE INFORMATION
Periodically inspect all bolts, sprockets, roller chains, and
bearing lock collars. Tighten any components that are
loose. When tightening bolts, check the procedure for the
required torque values. DO NOT over tighten bolts as this
can cause a bolt to fail during operation.
Bolt Torque Values
All bolts used on this baler are Grade 5 plated bolts
unless specified. Always replace with Grade 5 hardware
except where higher grades are specified. All Grade 5
bolts have three radial marks on the bolt head. Tighten all
hardware according to the following charts unless
specified differently in the manual.
See the Specifications division for wheel hardware torque.
FIG. 8
1
HB21757

4283392M1 01-9
General Information
Bolt Size Grade 2 Grade 5 Grade 8
Nm Lbf ft Nm Lbf ft Nm Lbf ft
5/16-18 15 11 24 17 33 25
3/8-16 27 20 42 31 59 44
7/16-14 43 32 67 49 95 70
1/2-13 66 49 105 76 145 105
9/16-12 95 70 150 110 210 155
5/8-11 130 97 205 150 285 210
3/4-10 235 170 360 265 510 375
7/8-9 225 165 585 430 820 605
1-8 340 250 875 645 1230 910
Standard Bolt Identification
Grade 2
No Marks
Grade 5
3 Marks
Grade 8
6 Marks
Bolt Size Class 5.8 Class 8.8 Class 10.9
Nm Lbf ft Nm Lbf ft Nm Lbf ft
M5x0.8436597
M 6 x 1 7 5 11 8 15 11
M 8 x 1.25 17 12 26 19 36 27
M 10 x 1.5 33 24 52 39 72 53
M 12 x 1.75 58 42 91 67 125 93
M 14 x 2 92 68 145 105 200 150
M 16 x 2 145 105 225 165 315 230
M 18 x 2.5 195 145 310 230 405 300
M 20 x 2.5 280 205 440 325 610 450
M 24 x 3 480 355 760 560 1050 780
Identify metric bolts by the class number stamped on the bolt
head or nut. Higher numbers indicate higher strength.

General Information
01-10 4283392M1
Service Chart
The following service chart lists all components and
grease fittings that can be serviced, in order of frequency
in hours, according to normal operating conditions. Each
of the service points in this list are shown in the photos in
this division. See Lubrication section in the Specifications
Divison for the correct type and quantity of lubricant.
Frequency Maintenance Point Maintenance
Frequently Roller chain Lubricate
Daily or every 10
hours Engine oil Check oil level and add if necessary
Hydraulic oil Check oil level and add if necessary
Air inlet screen Inspect and clean
ARI (Air Restriction Indicator) if equipped Clean or replace air filter when
indicator shows a red bar.
Tires Check condition and pressure
8 hours CV joint in front of drive shaft Lubricate
10 hours Stuffer crank Lubricate
20 hours Pickup overrunning clutch Lubricate
Needle carriage tie rods Lubricate
Gearbox Check oil level
Knotter Lubrication System Check oil level and add if necessary
30 hours (less in
dirty conditions) Primary air filter element Check and clean if necessary.
NOTE: Replace the primary element
after the primary filter has been
cleaned three times.
After the first 50
hours Hydraulic oil filter Change
Bale density hydraulic filter Change
50 hours U-joints in front of drive shaft Lubricate
Baler drive belt tension bracket Lubricate
U-joint and slip tube in rear of drive shaft Lubricate
Tongue pivot Lubricate
Flywheel Lubricate
Pickup drive shaft U-joints Lubricate
Knotter clutch arm pivot Lubricate
Plunger connecting rods Lubricate
Knotter trip arm pivot Lubricate
125 hours Engine cooling fins and oil cooling tubes Clean
200 hours Gearbox Lubricate
Engine oil and filter Change

4283392M1 01-11
General Information
250 hours Engine cooling fan belt switch Check
Engine cooling fan belt Check tension
Alternator belt Check tension
Baler drive belt Check tension
Pump drive belt Check tension
Hydraulic oil filter Change
500 hours Hydraulic breather filter Change
Bale density hydraulic filter Change
1000 hours Fuel filter Replace
Fuel screen Clean
Engine valves Adjust
Each season Wheel bearings Clean and lubricate
Gearbox breather Clean or replace
Knotter lubrication system Replace filter
Hydraulic breather filter Change
Primary and secondary air filters Replace
Frequency Maintenance Point Maintenance

General Information
01-12 4283392M1
Wheel Assembly
Wheel Bearings
The wheel bearings for the baler must be cleaned and
lubricated at the beginning of each season. See the
Specifications division for the correct lubricant.
Sealed Bearings
Sealed bearings are lubricated for life. Because of the
type of seal, lubricant cannot be added. If a seal is
damaged, the sealed bearing must be replaced.
Wheel Bolts
Tighten the wheel bolts after every 50 hours of operation.
See the Specifications division for the correct torque.
The wheels are fastened to the hubs with wheel bolts
installed in threaded holes in the hub flange. When
installing a wheel, clean the threads of the wheel bolts
with a steel brush and oil lightly to retard corrosion.
Wheel Bearing Replacement
FIG. 9: Jack the tire clear off the ground. Remove the
wheel (1). Tire has removed from the wheel for illustration
purposes only.
Carefully remove the hub cap (2) from the hub (3).
Remove the cotter pin (4), axle nut (5) and washer (6).
Slide the hub from the axle (7). Use a hub puller if
necessary.
Remove the seal (8).
Remove the bearings (9).
Remove the bearing cups (10) and discard. Clean and
dry the hub.
Press in new bearing cups with the thickest edges facing
in.
Pack the bearing cones by machine or hand. Completely
fill the rollers, cone, and cage. See the Specifications
division for the correct grease.
Fill the space between the bearing cups in the hub with
grease to the inside diameter of the cups.
Put the largest bearing cone in location. Press in a new
grease seal with the lip towards the bearing.
Clean the axle and install the hub.
Install the smaller bearing cone washer and axle nut.
Torque nut to 27.1- 40.7 Nm (20-30 lb/ft) while rotating
hub. Loosen two turns and retighten finger tight as hub is
rotated in the same direction. Then tighten to nearest slot
and insert cotter pin.
Fill the hub cap 3/4-full of wheel bearing grease and
install in the hub.
Install the wheel and remove the jack. See the
Specifications division for wheel hardware torque.
FIG. 9
D-14968
89
3
10
9
6
5
4
2
1
7

4283392M1 01-13
General Information
Shearbolts
The shearbolts are used in three different locations for the
protection of the components.
When a shearbolt shears, the towing vehicle and the baler
must be stopped immediately and the problem corrected
before baling.
Periodically check the bolts for wear and tear or loose
nuts. Replace as necessary.
FIG. 10: The flywheel shearbolt (1) connects the
flywheel to the drive train. When the flywheel shearbolt
shears, the flywheel cannot drive the baler.
FIG. 11: The stuffer shearbolt (1) connects the drive hub
to the stuffer sprocket. When the stuffer shearbolt shears,
the stuffer and pickup assembly will not run.
The knotter shearbolt (2) connects the knotter drive clutch
to the knotter drive sprocket. When the knotter shearbolt
shears, the knotters and needles will not operate.
Roller Chains
Lubricate roller chains frequently with clean engine oil to
keep high efficiency and give long, problem free service.
Operating conditions, dirt and temperature, amount of
power made, speed of roller chain, and lubrication can
change the life of a roller chain. Severe conditions
normally require more frequent maintenance.
Make sure oil goes into the spaces between the side bars
on the chain joints. A layer of oil must be kept between the
roller and bushings to keep a free and flexible roller chain.
FIG. 10
1
3SB-96001-04
FIG. 11
1
2
3SB-96006-24

General Information
01-14 4283392M1
For a stiff roller chain, soak and wash in solvent to loosen
and remove dirt and corrosion from the joints. Soak at
least eight hours in oil so the lubricant can go between the
rollers and bushings.
FIG. 12: Spring clip connectors (1) must always be
installed with the open end of the clip trailing the direction
of travel (A). Installing the spring clip in that direction helps
to prevent the loss of the spring clip while the baler is
running.
mWARNING: Never service, adjust, or
lubricate, chains, or belts, while the baler is
running.
Electrical
Make sure to cover all wiring harness connectors that are
disconnected. Use the sealing caps and plugs to keep dirt
and moisture out of the connectors.
Bearing Replacement (Eccentric
Self-Locking Collar)
Bearings with eccentric self-locking collars are used on
several shafts and are held in position on the structure
with bearing flanges.
FIG. 13: The bearing (1) is held in position on the shaft
by a locking collar (2). The locking collar has an eccentric
counterbore. This counterbore engages the eccentric end
of the bearing inner race (3) when the bearing is
assembled. The locking collar is rotated on the bearing to
lock the assembly on the shaft. The assembly grips the
shaft tightly with a positive locking action that increases
with use. A set screw (4) in the locking collar applies
additional locking pressure.
To replace a bearing:
• Loosen the set screw.
• Use a drift punch inserted in the drift pin hole (5) to
rotate and loosen the locking collar. Rotate the
locking collar opposite the direction of normal shaft
rotation. Remove the locking collar.
• Support the shaft. Remove the bolts for the bearing
flanges.
• Slide the bearing and the bearing flanges from the
shaft.
NOTE: Removing paint and corrosion from the shaft will
make removal easier.
• Put the bearing and bearing flanges on the shaft.
Make sure the bearing inner race is turned in the
correct direction.
FIG. 12
1
C-3553
A
FIG. 13
3
1
5
2
4
L97A-0297

4283392M1 01-15
General Information
• Install the bolts for the bearing flanges. Make sure the
bearing is straight within the bearing flanges. Tighten
the bolts evenly.
• Put the locking collar on the shaft. Push the locking
collar against the bearing inner race. Rotate the
locking collar in the direction of normal shaft rotation
until tightly engaged. Tighten the locking collar by
hitting with a drift punch inserted in the drift pin hole.
NOTE: Always tighten the locking collar in the direction of
normal shaft rotation.
• Tighten the set screw in the locking collar. Use the
following chart for set screw torque.
Gib Key Removal and Installation
FIG. 14: Gib keys (1) are tapered keys with a tang on the
thick end. A gib key is both a locking component and hub
retainer. The hub must have a tapered key way that fits
the gib key. The gib key will lock the hub in position. No
other locking component such as a set screw is needed.
Remove paint from the shaft on both sides of the hub.
Use a pry bar (2) to apply pressure between the gib key
and the hub. While holding pressure on the gib key, drive
the hub away from the gib key by hitting the hub with a
hammer.
FIG. 15: Make a special tool to remove gib keys from
locations with little access. Use a 25 mm (1 inch) wide
chisel and grind the width of the chisel to 16 mm (5/8 inch)
(1). Grind a slot (2) in each side of the head of the chisel.
The slot is used to keep the chisel from slipping.
Set Screw Size Nm Ibf in
1/4-20 4.8 78
5/16-18 18 156
3/8-16 31 273
7/16-14 49 428
FIG. 14
12
STD-98A02
FIG. 15
1
2
L97A-0295

General Information
01-16 4283392M1
FIG. 16: Insert the chisel between the gib key head and
the hub. Drive against the chisel with a hammer. Use the
narrow side of the chisel for smaller gib keys and the wide
side of the chisel for large gib keys.
After the hub and gib key loosens, remove the gib key
with the pry bar.
Remove the hub.
Put a thin layer of anti-seize compound or grease on the
shaft to prevent sticking or the formation of rust between
the hub and shaft.
FIG. 17: Install the hub. Make sure the taper in the hub is
in the same direction as the gib key taper. Align the key
way in the hub with the key way on the shaft. Install the
gib key.
Hold the sheave or sprocket in position on the shaft. Hit
the gib key with a hammer until the gib key is seated.
NOTE: The gib key does not have to be driven extremely
hard into the hub to seat.
Hydraulic Bale Density Control System
FIG. 17: The hydraulic bale density control system
operates the bale density cylinder. Keep the hydraulic
system clean and free of dirt and foreign material. To get
the best results, proper maintenance and servicing must
be done.
Always check and add oil with the system pressure at, or
near, 0 kPa (0 psi). Check the hydraulic fluid level with the
bale density cylinder retracted.
Remove the reservoir cap to check the hydraulic fluid
level.
Keep the hydraulic fluid reservoir filled to a line on the
dipstick to full.
See the Specifications division for the correct quantity and
type of lubricant.
Remove and clean the breather cap filter and air filter
after every five days of operation. Do this more frequently
in extremely dirty conditions. Replace filters that are
extremely dirty, or difficult to clean.
Use a petroleum solvent to clean components. Wet the air
filter with clean 10w engine oil before installing.
FIG. 16
L97A-0296
FIG. 17
STD-98A01