HORNER Shearing RAMBO User manual

INSTRUCTION BOOKLET

RAMBO INSTRUCTION BOOKLET
2
Introduction
These instructions must be comprehensively read by any
person intending to use or maintain this machine.
Purpose of Use
This equipment is expressly designed and intended to be
used for the shearing of sheep, goats and animals of the
camelidae family.
All maintenance should only be carried out by
suitably trained personnel
Contents
General
Safety Information
Comb & Cutter Set-up
Setting the Lead
Setting the Throw
Setting the Tension
Comb & Cutter Usage
Rambo Mains
Electrical Safety
Operation
Rambo Vehicle
Electrical Safety
Operation
Rambo QuickDraw
Electrical Safety
Charging the Batteries
QuickDraw Accessories
Operation
Maintenance
Greasing Points
Lubrication
Parts List
Machine Breakdown
Troubleshooting
3
4, 5
5
6
6
7
8
9
10
11
12
13
14, 15
16
17
18, 19
20
21
22, 23
CONTENTS

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Improper use or incorrect set up of this sheep
shearing machine can lead to serious injury.
Always disconnect the power supply before
changing combs and cutters.
Never switch on the machine without a comb and
cutter tted.
It is advised that any person using this machine attend a
sheep shearing training course to ensure correct usage of this
machine.
Adequate protective clothing should be worn at all times
whilst shearing.
You should be aware of sharp objects and moving parts, in
particular the cutter.
The shearer should check the wool for any foreign objects
before starting shearing.
Always disconnect power from the machine when it is not in
use or when undergoing essential set up and/or maintenance.
The machine should be used in a tidy, dry environment.
SAFETY INFORMATION

RAMBO INSTRUCTION BOOKLET
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Positioning Your Comb and Cutter
Before you start, ensure the comb screws and tension knob
are slack.
Hold the machine so that you are looking at its underside and
so you can clearly see both comb screws.
Place your comb in the
machine so that the sharp side
faces the forks and adjust the
comb until the heel is level
with the back edge of the comb
screws.
DO NOT position the heel of
the comb to the back of the
comb bed.
Tighten the comb screws nger tight, holding the comb in
place. Not too tight, you may need to adjust this further.
LONGHORN®
LONGHORN®
COMB AND CUTTER SET UP

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Turn over the machine and place your cutter onto the comb.
The sharpened sides of both the comb and cutter should face
each other. Locate the cutter onto the conical pins on the
forks.
Secure the cutter by turning
the tension knob clockwise.
Apply enough tension to
secure the cutter.
Setting the Lead
Adjust the comb so that as the cutter travels over the comb’s
central tooth, at least 1.5 mm of the comb tooth’s at ground
surface is clear of the cutter’s tip.
Finally, rmly tighten the comb screws.
1.5mm
Central tooth
1.5mm
COMB AND CUTTER SET UP

RAMBO INSTRUCTION BOOKLET
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Setting the Throw
It is normal for the clipper forks to lock in position either side
of the throw.
Whichever side the forks are
positioned at, this is the side you
will set the throw from. If the
forks are positioned in the
centre, push your forks to
the right if you are right-handed,
or to the left if you are left-handed.
Adjust the comb so that the outside edge of both the comb and
cutter align. Firmly tighten the comb screws and then turn the
tension knob clockwise to apply tension and secure the cutter
in place.
Setting the Tension
Tighten the tension knob by
turning it clockwise.
Too little tension causes
‘feathering’ which compromises
the quality of the cut.
Too much tension will cause the
comb and cutter to overheat,
resulting in your combs and
cutters becoming blunt faster.
COMB AND CUTTER SET UP

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Comb and Cutter Usage
Never increase the tension when the comb or cutter starts to
become blunt as this will damage your equipment. When your
combs and cutters do start to go blunt, change them.
Once blunt, you should have your combs and cutters
sharpened on a specialist grinder.
For professional shearers the recommended cutter to comb
ratio is three cutters to one comb. However, we advise that
general farm shearers can lower that ratio to 2:1.
COMB AND CUTTER SET UP

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Electrical Safety
To reduce the risk of electric shock, do not expose the
transformer to rain or moisture.
• Use a 3 amp fuse in the transformer plug (UK plug only).
• Don’t insert plug into a damaged socket.
• Check the transformer for damage or defects before use.
• Do not use the transformer if the electric cable is damaged
or if the transformer has been in contact with water.
• Keep the transformer out of direct sunlight and away from
naked ames.
• Never attempt to open the transformer.
Mains Transformer Specications
AC Input Voltage Current Frequency
100-120VAC 220-240VAC 2.5A 50-60Hz
DC Output 28V 8A
RAMBO MAINS

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Operation
Once you have your comb and cutter set up (explained in pages
4 - 6) you are ready to plug in and shear.
The transformer can either be hung up via the leather strap
on the back or can be sat on a solid, dry surface. Locate the
handpiece’s power cable and plug this into the transformer.
Ensuring the wall plug and the handpiece are switched o, plug
the transformer into the wall.
Holding the Rambo handpiece, switch the wall plug on and then
switch the handpiece on via the switch located on the back of
the handpiece.
RAMBO MAINS

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Battery Safety
• Only connect the battery clips to a 12 volt DC power supply.
• Don’t use a battery that looks damaged or is leaking.
• Don’t use a machine with damaged battery leads.
• Don’t smoke or allow naked ames anywhere near the battery.
• Don’t let any metal objects come in contact with the battery as
these could cause a spark and possibly make the battery explode.
• Don’t remove the power leads while the machine is running.
To connect your machine to a battery
1. Make sure your machine is switched o.
2. Connect the black lead to the negative (-) terminal on the battery.
3. Connect the red lead to the positive (+) terminal on the battery.
To disconnect your machine from the battery
1. Make sure your machine is switched o.
2. Remove the red lead from the positive (+) terminal on the battery.
3. Remove the black lead from negative (-) terminal on the battery.
Running the machine directly from a vehicle
• If you are using the machine connected to a vehicle it is
advisable to start the vehicle every 2/3 hours for approximately
15 minutes to top up the battery.
• There is no need to disconnect the battery from the vehicle
when using the machine.
• The vehicle does not need to be running whilst using the
machine.
RAMBO VEHICLE

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Operation
Once you have your comb and cutter set up (explained in pages
4 - 6) you are ready to connect to power and shear.
Sit the vehicle adaptor on a clean, dry, solid surface ensuring
it cannot fall o. Locate the handpiece’s power cable and plug
this in to the vehicle adaptor.
Ensuring the Rambo is switched o, clip the battery leads onto
the battery.
To switch the Rambo on, locate the switch at the back of the
handpiece and turn on.
RAMBO VEHICLE

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Electrical Safety
To reduce the risk of electric shock, do not expose the battery
or charging unit to rain or moisture.
• Only use genuine batteries designed for this machine.
• Use a 3 amp fuse in the charging unit.
• Don’t insert the plug into a damaged socket.
• Check the machine batteries for defects before use. Never
use damaged batteries.
• Do not use charger if the electric cable is damaged or if the
charger has been in contact with water.
• Store batteries and charging unit in and cool, dry place and
out of direct sunlight and away from naked ames.
• Charge before storage.
• If warm after use, allow to cool down before recharging.
Battery Breaker
If the handpiece is drawing too much power from the battery
then the circuit breaker in the battery pack will cut power to
the machine to prevent any damage. If this happens then you
should identify the cause of the problem before continuing. See
Troubleshooting pages 22 & 23 for diagnosis and solution.
To reset the circuit breaker in the battery, simply push the
button on top of the battery pack.
RAMBO QUICKDRAW

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Sit the charging unit on a solid, at, dry surface and plug the
charger’s output lead it into the wall. A green LED light will
appear indicating the charging unit is ready to use.
Ensure the battery is clean and free from any foreign objects
and check for any defects on the battery.
Plug the charger’s XLR lead into the battery. The charging unit’s
LED light will then turn red indicating the battery is charging.
Once the battery is fully charged the red light will turn to green.
Charging Unit LED Indicator
Red Charging
Green Charging complete
Green Flashing Battery pack overheating
Red & Green Flashing Temperature range sensor (NTC) error
Red Flashing Battery or DC plug short circuit
Charging Unit
Input 100/240V AC
50/60Hz
Output 24V DC
Battery Specications
Type Ni-MH
Voltage 24v
Charging Time Around 2
hours
RAMBO QUICKDRAW

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Accessories for the Rambo
Please check that you have all the accessories to the Rambo
QuickDraw before assembling.
You should have:
1 x leather belt, 1 x leather holster, 1 x leather battery holder.
Locate your leather belt, you will see 2 rivets through 2 holes in
the middle of the belt. Unscrew them and put them to one side.
Slide the belt through the belt
loops on the back of the battery
holder rst and then slide the
belt through the loops on the
holster.
Try the belt and make sure the
accessories feel comfortable
and are in the right place.
The battery holder should be
close to the middle of your
back and the holster should
sit on your leg.
RAMBO QUICKDRAW

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Now take the belt back o and line up the 2 punched holes in
the back of the battery holder with 2 of the punched holes of
the belt.
Push the rivets through the
punched holes on the back of
the battery holder from the
inside, pushing them though
the aligned holes in the belt
and fasten using the screws.
It is best to place your battery in the holder at this point. Place
your battery in the holder so that the socket is facing forwards.
You can now put the belt back on and fasten the leg strap on
the holster, securing the holster in place.
RAMBO QUICKDRAW

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Operation
Finally you will be able to plug the Rambo handpiece into the
battery, to do this plug the handpiece’s coiled lead into the
battery’s socket ensuring the 3 pins line up and that it clicks
into place.
You will now be able to switch the Rambo on using the switch
located at the back of the handpiece.
RAMBO QUICKDRAW

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Sliding sleeve
Greasing Points
We recommend that you grease the points indicated below
before you commence shearing and that you check your
handpiece daily.
Pack the sliding sleeve with
grease. To do this, remove
the tension knob by twisting
anti-clockwise. Lift the fork
body, remove the sliding
sleeve and pack the hollow
area with grease. DO NOT
grease inside the tension
knob as this will cause the
handpiece to vibrate and
lose tension when shearing.
DO NOT grease the outside of the sliding sleeve,
instead apply a small amount of shearing oil.
Grease the fork swivels by
rotating the fork 90 degrees
and pull away from the
handpiece. Apply grease to
both ends that go into the fork
body.
Re-t by reversing the
procedure above.
Grease
MAINTENANCE

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Lubrication
Use Longhorn®shearing oil to keep your handpiece well
lubricated.
Before shearing commences you should prepare your handpiece
by oiling every oil point indicated on the diagram below. We
recommend oiling these points (excluding the oil screw hole) on
every cutter change (approximately 20 minutes).
FULCRUM CUP & POST
Drip oil down the barrel to reach the fulcrum cup & post.
This should be done with no cutter attached to the handpiece.
COMB & CUTTER
FORKS
TENSION PIN CUP
CRANK ROLLER
MAINTENANCE

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Air Filters
To allow adequate air ow you should clean these as
frequently as necessary to keep the lter clear.
The oil screw hole should have ONE drop of
oil poured in it every 2 - 3 hours. Any more
will cause damage to the internal
components of the motor.
MAINTENANCE

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1 H19-200 Left Hand Fork 25 H60-006 Heat Proof Sleeve 2 H19-201 Right Hand Fork 26 H60-007 Protective Ring 3 H19-202 Fork Retaining Spring 27 H19-222 Crank Roller 4 H19-203 Fork Retainer Screw 28 H60-008 Crank Body 5 H19-204 Fulcrum Cup 29 A H60-011 (A) Gearbox - Pre 2018 6 H19-205 Tension Pin Cup 29 B H60-011 (B) Gearbox - Post 2018 7 H19-206 Tension Pin Retaining Spring 30 H60-009 Gearbox Motor Screw 8 H19-207 Bare Fork Body 31 H60-010 Spring Washer 9 H19-208 Complete Fork Body 32 H60-012 O Ring 10 H19-209 Comb Screws 33 H60-013 Hexagon Headed Bolt 11 H19-115 Fulcrum Post Nut 34 H60-014 Motor guard 12 H19-116 Fulcrum Post 35 H60-015 Rear Cap Screws 13 H19-117 Threaded Bush 36 A H60-016 (A) Motor Unit - Pre 2018 14 H19-213 Tension Circlip 36 B H60-016 (B) Motor Unit - Post 2018 15 H19-214 Tension Pin 37 H60-027 Motor Filtering Net 16 H19-215 Sliding Sleeve 38 H60-018 Gland Nut 17 H19-118 Tension Knob 39 H60-020 Rear Cap Presser 18 H19-217 Rubber Bung 40 H60-019 Filtering Cap 19 H19-132 Safety Screw 41 H60-017B Rear Cap 20 H19-001 Handle Head 42 H60-024 Gland 21 H19-002 Handle Cover 43 H60-021 Switch 22 H19-003 Handle Gear Box Screw 44 H60-022 Insulated Wire 23 H60-004 Oil Hole Screw 45 H60-041 Straight Flex - CB Plug 24 H60-005 Oil Hole Screw Washer 46 H60-042 Coiled Flex - XLR Plug
PARTS LIST