HORNER Shearing SureGrip Operating instructions

Brand
HORNER Shearing
Model
SureGrip
Type
Operating instructions
INSTRUCTION BOOKLET
HORNER - SUREGRIP INSTRUCTION MANUAL
CONTENTS
2
Introduction
These instructions must be read by any person intending to
use or maintain the handpiece.
Purpose of Use
This equipment is expressly designed and intended for the
purpose of shearing sheep, goats and animals of the
Camelidae family.
Contents
Safety Information
Comb & Cutter Set-up
Setting the Lead
Setting the Throw
Setting the Tension
General Maintenance
Attaching Handpiece to Driveshaft
Technical Drawing
Parts List
Troubleshooting
3
4, 5
5
6
7
8, 9, 10
11
12
13
14, 15
HORNER - SUREGRIP INSTRUCTION MANUAL
SAFETY INFORMATION
3
Safety Information
Improper use or incorrect set up of this sheep
shearing handpiece can lead to serious injury.
It is advised that any person using this handpiece attend a
sheep shearing training course to ensure correct usage of this
handpiece.
Adequate protective clothing should be worn at all times
whilst shearing.
You should be aware of sharp objects and moving parts, in
particular the drive cogs and cutter.
The shearer should check the wool for any foreign objects
before starting shearing.
Always disconnect the handpiece from the driveshaft when
it is not in use. The handpiece should also be disconnected
before carrying out any maintenance work and before tting
combs and cutters.
The handpiece should be used in a tidy, dry environment.
HORNER - SUREGRIP INSTRUCTION MANUAL
COMB AND CUTTER SET UP
4
Positioning Your Comb and Cutter
Before you start, ensure the comb screws and tension knob
are slack.
Hold the handpiece so that you are looking at its under side
and so you can clearly see both comb screws.
LONGHORN
NGHO
Place your comb in the
handpiece 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.
HORNER - SUREGRIP INSTRUCTION MANUAL
COMB AND CUTTER SET UP
5
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.
1.5mm
Central
tooth
Turn over your handpiece 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, but ensure
that you can still move the
forks from side to side using
the drive cogs located towards
the back of the handpiece.
1.5mm
Central tooth
Side view
HORNER - SUREGRIP INSTRUCTION MANUAL
Setting the Throw
For a right-handed shearer
you will rst position the
cutter as far right as the
throw will allow.
For a left-handed shearer
you will rst position the
cutter as far left as the throw
will allow.
Secondly, adjust the comb so
that the outside edge of both
the comb and cutter align.
Using your thumb on the
drive cogs, move the cutter
from side to side and ensure
that the inner two teeth of
the cutter both pass over the
central tooth of the comb
completely on each side.
L
O
N
G
H
O
R
N
L
O
N
G
H
O
R
N
Central tooth
Finally, rmly tighten the comb screws.
Ensuring that the cutter passes over the central tooth of
the comb on both sides completely will result in a cleaner
cut.
COMB AND CUTTER SET UP
6
HORNER - SUREGRIP INSTRUCTION MANUAL
Setting the Tension
Tighten the tension knob by turning it clockwise until the drive
cogs can just be turned with your thumb on the cogs.
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 Usage
Never tighten the tension when the comb or cutter starts to
become blunt, 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. We advise that general
farm shearers can lower that ratio to 2:1.
COMB AND CUTTER SET UP
7
ONGHORN
HORNER - SUREGRIP INSTRUCTION MANUAL
ONGHORN
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
TENSION PIN CUP
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.
OIL BATH
The oil bath should be filled up at the start of
shearing and checked every 2-3 hours.
CRANK ROLLER
COMB & CUTTER
FORKS
DRIVE COGS
BACK SPINDLE
Drip oil down the ferrule to
reach the back spindle.
GENERAL MAINTENANCE
8
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 on every cutter
change (approximately 20 minutes).
HORNER - SUREGRIP INSTRUCTION MANUAL
ONGHORN
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
LONGHORN
OIL
TENSION PIN CUP
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.
OIL BATH
The oil bath should be filled up at the start of
shearing and checked every 2-3 hours.
CRANK ROLLER
COMB & CUTTER
FORKS
DRIVE COGS
BACK SPINDLE
Drip oil down the ferrule to
reach the back spindle.
GENERAL MAINTENANCE
9
HORNER - SUREGRIP INSTRUCTION MANUAL
Sliding sleeve
Greasing Points
We recommend that you grease the points indicated below
before you commence shearing and to check your
handpiece daily.
GENERAL MAINTENANCE
Pack the sliding sleeve with
grease. To do this, remove
thetension 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, 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.
Remembering to disconnect your handpiece from the
driveshaft, add a small amount of grease onto the drive cogs.
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.
10
Grease
HORNER - SUREGRIP INSTRUCTION MANUAL
Before attaching your handpiece to any driveshaft,
double-check that the shearing machine you’re about to
attach your handpiece to is switched o.
Locate the correct end of your driveshaft and push the back
spindle of your handpiece onto the driveshaft rmly.
Lock the handpiece back on itself as shown in the illustration
below when attaching it to the driveshaft.
For Pin Drive Handpieces
Rotate clockwise. Once you feel the handpiece locate into the
bayonet, rotate another full turn.
For Worm Drive Handpieces
Rotate clockwise until the handpiece and driveshaft are tight
together.
LONGHORN
ATTACHING HANDPIECE TO DRIVE
11
HORNER - SUREGRIP INSTRUCTION MANUAL
SUREGRIP - TECHNICAL DRAWING
12
HORNER - SUREGRIP INSTRUCTION MANUAL
SUREGRIP - PARTS LIST
1 H19-200 Left Hand Fork 19 H19-218 Safety Screw
2 H19-201 Right Hand Fork 20 H19-219 Handle
3 H19-202 Fork Retaining Spring 21 H19-220 Oil Hole Screw & Washer
4 H19-203 Fork Retainer Screw 22 H19-221 Oil Hole Washer
5 H19-204 Fulcrum Cup 23 H19-222 Crank Roller
6 H19-205 Tension Pin Cup 24 H19-223 Crank Spindle
7 H19-206 Tension Pin Retaining Spring 25 H19-224 Main Bush
8 H19-207 Bare Fork Body 26 H19-225 Internal O-Ring
9 H19-208 Complete Fork Body 27 H19-226 External O-Ring
10 H19-209 Comb Screw (Knucklesaver) 28 H19-227 Back End Guard
11 H19-210 Fulcrum Post Nut 29 H19-228 Joint Spring
12 H19-211 Fulcrum Post 30 H19-229 Joint Cap
13 H19-212 Threaded Bush 31 H19-230 Back Joint Short Half
14 H19-213 Tension Circlip 32 H19-231 Cog
15 H19-214 Tension Pin 33 H19-232 Back Joint Long Half
16 H19-215 Sliding Sleeve 34 H19-233 Worm Back Spindle
17 H19-216 Tension Knob 35 H19-234 Pin Back Spindle
18 H19-217 Rubber Bung 36 H19-235 Short Spindle Pin
13
HORNER - SUREGRIP INSTRUCTION MANUAL
TROUBLESHOOTING
PROBLEM DIAGNOSIS SOLUTION
Handpiece not
cutting
correctly
Comb and cutter not
set correctly in
handpiece
Refer to set up page 4, 5
and 6
Comb and cutter
incorrectly sharpened
Have your combs and
cutters professionally
sharpened
Not enough tension on
comb and cutter
Re-set tension
No rise in sheep’s wool Leave sheep longer or
select a dierent style of
comb
Comb and cutter blunt Have combs and cutters
professionally sharpened
Cutter not
sitting in
position
Forks worn (conical
pins)
Replace forks. This is best
done in pairs
Comb not
staying in
position
Comb screws are
worn or not tightened
properly
Replace comb screws
Forks falling out
of fork body
Fork retaining spring
broken
Have spring replaced
Handpiece not
tensioning/comb
and cutter losing
tension
Tension pin and sliding
sleeve worn
Replace pin and sleeve
Tension pin cup worn Replace cup
Tension lock ring
damaged, worn or stuck
Replace tension lock
ring
Handpiece
vibrating
excessively
Cup and post worn Have cup and post
replaced and set by a
trained technician
Fulcrum post loose
Drive spindle dry
‘red spot’
Remove back spindle and
oil
14
Any repairs should only be made by a trained professional
and should be carried out using genuine parts designed for
this handpiece.
HORNER - SUREGRIP INSTRUCTION MANUAL
TROUBLESHOOTING
PROBLEM DIAGNOSIS SOLUTION
Handpiece heating up
excessively front,
middle or back end
Too much tension on
comb and cutter
Replace comb and
cutter/re-set tension
and oil
No oil in oil bath. Fill up oil bath
(see page 9)
Handpiece generally
dry
Oil handpiece at the oil
points (see page 8 & 9)
Comb and cutter blunt Have your combs and
cutters professionally
sharpened
Handpiece won’t drive/
locked up
Drive pin worn/broken Have drive pin
replaced
Worm back spindle
worn
Replace back
spindle
Wool under cogs Check back guard is
present – remove cogs
and wool then replace
cogs
Handpiece noisy Back spindle dry May need polishing
and oiling
Cogs worn Have cogs replaced
Handpiece dry Oil handpiece at the oil
points (see page 8 & 9)
Send handpiece for full service
Back joint guard
perished
Have guard
replaced
Joint spring loose and
caps missing
Have joint spring and
caps replaced
Fork body broken Handpiece
accidentally damaged
Send handpiece for
repair and full service
15
HORNER SHEARING • LANE SIDE • GRINDLETON ROAD • WEST BRADFORD • CLITHEROE • BB7 4QH • UK
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HORNER Shearing SureGrip Operating instructions

Brand
HORNER Shearing
Model
SureGrip
Type
Operating instructions
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