HORNER Shearing Zipper II User manual

Instruction Manual
Setting up and maintaining your machine

2ZIPPER II INSTRUCTION MANUAL
Introduction
These instructions must be read by any person intending to use or service
the machine.
Purpose of use
This equipment is expressly designed and intended for use for the
shearing of sheep, goats and animals of the Camelidae family.
The machine should be used in a tidy, dry environment.
Essential operator skills
• The operator must be the trained in the safe use of the machine.
• The operator must be experienced in handling the animals to be
shorn.
Contents
Electrical Safety ______________________________________________________ 3
Sacricialgearsafetyfeature_________________________________________ 3
Circuit breaker _______________________________________________________ 4
Operation ___________________________________________________________ 4
Fitting the comb and cutter __________________________________________ 5
When to change the comb and cutter _______________________________ 6
Lubrication __________________________________________________________ 6
Tension adjustment __________________________________________________ 7
Cleaningtheairlter _________________________________________________ 7
Storage_______________________________________________________________ 7
Technical Diagram & Spares List _____________________________________ 8

3ZIPPER II INSTRUCTION MANUAL
Electrical safety
Warning:toreducetheriskofreorelectricshock,donotexposethis
appliance to rain or moisture.
Caution: to reduce the risk of electric shock, do not attempt to open
the plastic casing of this machine. The machine carries dangerously
highvoltagesinsideevenwhenswitchedoanddisconnectedfrom
the electrical socket. There are no user-serviceable parts inside. Refer
servicingtoqualiedservicepersonnel.
• Use only on a 220-240 volt AC 50 Hz electricity supply.
• Use a Circuit Breaker (RCD) with this machine.
• Use a 3 amp fuse in the plug.
• Never insert the plug into a damaged socket.
• Keep the electric lead up, out of the way of animals.
• Switchoandunplugthemachinebeforechangingthecomborcutter
and before any maintenance.
• Never use the machine if you suspect it of having been in contact with
liquids.
• Check the machine body and electrical cable for defects before use.
Sacricial gear safety feature
Thismachineincorporatesasacricialgearwhichisdesignedtostripin
the event of the machine jamming or encountering an obstruction, e.g.
wire in wool, improper comb setup (see page 5) or lack of oiling.

4ZIPPER II INSTRUCTION MANUAL
Circuit breaker
• Thismachineisttedwithabuilt-incircuitbreakertoprotectitfrom
damage in the case of electrical overload.
• When tripped, a small dowel will be ejected and will protrude from the
rear of the machine. To reset the circuit breaker, push the dowel back
into the machine until it locks into place.
• The circuit breaker may be caused to trip by excessive heat in
the working environment, by extreme tension set by the tension
adjustment nut (see section "Tension adjustment before shearing"),
by an incorrectly set up comb and cutter (see section "Fitting the comb
and cutter"), or by an obstruction of the cutter. If the circuit breaker
trips without any of the above causes, the machine should be referred
toaqualiedserviceperson.
• This circuit breaker does not take the place of, nor reduce the need
for, an external socket-mounted RCD circuit breaker, which should
always be used with any shearing machine.
Operation
• Switch: Position I- the power is ON. Position O– the power is OFF.
• Switch to o (position O) before plugging into, or disconnecting from,
the power supply.
• Always disconnect the power supply before changing the comb or
cutter.
• Always ensure that the comb is correctly positioned as shown in the
diagram at the bottom of page 5.
• Never wrap the power cable around the machine.
• Keep away from all liquids.
• Never shear wet animals.
• Do not use combs with missing or broken teeth.
• Lookoutforwire,etc.intheeeceandremovebeforeshearing.
• Keep clear of ear tags.
• Keep children away from the working area and store the machine out
of their reach.
• Sharpen combs and cutters on a specialist grinder.
• All persons using this machine must be trained in its safe use
• Operating instructions should be kept in the storage case and should
be accessible at all times.

5ZIPPER II INSTRUCTION MANUAL
Fitting the comb and cutter
• Disconnect the machine from the power supply.
• Loosenthetensionnut,slackenothecombscrewsandremovethe
old comb and cutter.
• Make sure the new comb and cutter are clean and undamaged.
• The sharp surface of the cutter must sit on the sharp side of the comb.
• Holding the machine upside down, place the new cutter in the conical
pins of the forks.
• Push the new comb between the loosened screws.
Semi-tighten the comb screws.
• Move the comb until the sharp surface of the comb projects
1.2mm – 2.0mm beyond the tips of the cutter.
• Note: the cutter must not overhang the hollows on the end of the
comb teeth.
• Tighten the combs screws. Tighten the tension nut until the cutter is
pressed against the comb and you can feel a slight resistance.
• Always check that both conical pins are still in the holes of the cutter
before using.
MOVE THE COMB FORWARD SO THAT THE BASE OF THE
CUTTER CANNOT DROP INTO THE OIL GROOVE.
THE GAP BETWEEN THE TIP OF THE CUTTER AND THE END
OF THE FLAT ON THE MIDDLE TOOTH SHOULD BE AT LEAST
1.5MM.
1.5mm
Oil Groove

6ZIPPER II INSTRUCTION MANUAL
When to change combs and cutters
• Always disconnect from the power supply before changing combs and
cutters.
• On clean wool, the cutter can be changed more often than the comb
(e.g. use 2 cutters to 1 comb). This can only be done if the comb is still
cutting cleanly.
• Replace both comb and cutter when they are not cutting cleanly.
Lubrication
• At least every 3 minutes. Place a few drops of oil across the combs
and cutters (illustration 1).
• Every 10 minutes place a few drops of oil into the lubrication holes on
the shearing head (illustration 1, point 2).
• Lack of oiling causes the head to overheat and causes excessive wear.
• Inadequately oiled combs and cutters will get hot and go blunt quickly.
Illustration 1 - Oiling Points
The Zipper does not slow down or sound
dierently when in need of oil, so
it must be oiled frequently.
2
1
3
Points 1 & 3 - oil every 3 minutes
Point 2 - oil every 10 minutes

7ZIPPER II INSTRUCTION MANUAL
Tension adjustment before shearing
Whilethemachineisswitchedo,ensurethattheconicalpinsonthe
chicken feet sit exactly into the positioning holes in the cutter.
Tighten the tension nut until resistance is felt (illustration 2). Do not
over-tighten.
If it is not cutting properly at the very start of shearing, add a little more
tension.
Donotslackenotensionwhilethemachineisrunning.
Iftensionisnotsucient,woolmaycollectbetweenthecombandcutter.
If there is too much tension, the comb and cutter will wear prematurely
and the machine will be put under excess strain.
Illustration 2 - Tension
Cleaning the air lter
• Cleantheairlterwithadrysoftbrushfrequently.
• Themachinemustneverbeoperatedwithouttheairlterelement.
Storage
Store the machine in a clean and dry place, out of the reach of children.
Turn clockwise to tighten

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1 - Zipper Crank Roller - H12-001 24 - Zipper Brush Holder - H12-022
2 - Zipper Crank Spindle - H12-002 25 - Zipper Right Hand Fork - H12-023
3 - Zipper 608Z Bearing - H12-003 26 - Zipper Left Hand Fork - H12-024
4/5 - Zipper Drive Gear - H12-004 27 - Zipper Gauge Plate - H12-025
6 - Zipper Housing Cover - H12-005 28 - Zipper Fork Detail - H12-026
7 - Zipper Head Retaining Screws - H12-006 29 - Zipper Tension Link Spring - H12-027
8 - Zipper Bare Head - H12-007 30 - Zipper Tension Link Spring Screw - H12-028
9 - Zipper Lid Bush - H12-008 31 - Zipper Tension Link Spring Washer - H12-029
10 - Zipper Tension Retaining Ring - H12-009 34 - Zipper Housing Cover Screws - H12-030
11 - Zipper Sliding Sleeve - H12-010 35 - Zipper Comb Screw - H12-031
12 - Zipper Tension Nut - H12-011 36 - Zipper Fulcrum Post Nut - H12-032
13 - Zipper Thumb Plate Screw - H12-012 37 - Zipper Fulcrum Post - H12-033
14 - Zipper Thumb Plate - H12-013 38 - Zipper Head Retaining Nut - H12-034
15 - Zipper Casing Top Half - H12-014 39 - Zipper Casing Bottom Half - H12-035
16 - Zipper Switch Actuator Rod - H12-015 40 - Zipper Air Filter Right - H12-036
17 - Zipper O-Ring - H12-016 41 - Zipper Cable Grip Screw - H12-037
18 - Zipper Rotor - H12-017 42 - Zipper Cable Grip - H12-038
19 - Zipper Magnet Housing - H12-018 43 - Zipper Cable Support - H12-039
20 - Zipper O-Ring - H12-016 44 - Zipper Electric Flex and UK or EU Plug - H12-040/041
21 - Zipper Circuit Board - H12-019 45 - Zipper Air Filter Left - H12-042
22 - Zipper Carbon Brush - H12-020 46 - Zipper Casing Screw - H12-043
23 - Carbon Brush Spring - H12-021 47 - Zipper Safety Rope - H12-044
8
LaneSide•GrindletonRoad•WestBradford•Clitheroe•BB74QH•U.K.