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8ml VARIABLE AUTOMATIC DRENCHER
The 8ml Automatic Drencher (referred to as applicator)
has been designed for the administration of most
solution and suspension drenches solutions to
!
livestock. As components in this instrument may be
affected by solvents in some 'pour-on' formulations
IMPORTANT
no responsibility will be accepted by the manufacturer
should the instrument be used with such products.
BEFORE DRENCHING
Always read the label.
Check the label on the pharmaceutical manufacturer's container
for dose rates, precautions, and safety information prior to use.
Use only the recommended dose rate.
Use only the pharmaceutical manufacturer's recommended rates.
Refer to the pharmaceutical manufacturer's dose rate chart or
specifi cation.
Check the applicator.
Before each use, the nozzle should be inspected to ensure there
are no sharp edges. Should this occur, remove with fi le or emery
paper or replace nozzle.
INSTRUCTIONS FOR USE
Preparing the applicator.
Fit the appropriate nozzle attachment assembly to the handpiece,
taking care to ensure the delivery valve and spring (item 5) remain
facing in direction shown in the handpiece diagram.
!
Always exercise care when dosing animals. Do not apply
undue pressure and ensure the nozzle is not forced
against or through delicate mouth and throat tissues.
CAUTION
Attach connecting tube to both the hand piece and draw off system.
Make sure the springs provided are screwed over the feed tube in
an anti-clockwise direction. This will prevent the tube from kinking
at these points.
Priming the applicator.
To prime, set to maximum dose and actuate the instrument by
depressing the lever quickly until material is drawn into the cylinder.
Expel all air by holding the instrument in a vertical position, with
the nozzle pointed upwards until both cylinder and nozzle are full.
Care must be taken to ensure the liquid does NOT
!
come into contact with any part of the operator's
body. Chemicals may cause injury to the operator.
WARNING
To adjust the dose.
Loosen dose adjustor lock nut (item 23). Depress the lever to
take pressure off dose adjustor screw (item 22). Adjust the dose
adjustor screw in or out depending on the dose setting required. To
set the correct dose, align black piston (item 13) with the cylinder
marking. Once the piston is in the correct position, release pressure
on the lever and re-tighten dose adjustor lock nut (item 23).
(See calibration instructions)
Calibration of the applicator.
As the graduation markings on the cylinder are for reference only,
check the accuracy of the instrument with a calibrated measuring
glass. To ensure repeatability, squirt 5 x 5ml doses into a calibrated
glass. The level of fl uid should be at the 25ml mark. If it is not,
readjust the applicator following the steps above then perform the
dose test again. If you have problems with dose accuracy contact
the manufacturer or place of purchase.
Cylinder fi ll rate and delivery pressure.
This can be varied by adjusting return spring (item 21) tension.
Turning adjustor nut (item 18) on the trunnion assembly clockwise,
will increase fi ll rate and delivery pressure, turning anticlockwise will
reduce fi ll rate and delivery pressure. Minimum return spring tension
should be used to achieve acceptable fi lling rate and delivery speed.
If spitting occurs reduce tension on return spring.
STERILIZATION
A common method of sterilization is as follows:
1 Connect feed tube and spring to handpiece.
2 Wrap cloth around handpiece and place end of feed tube into
container of clean end of feed tube into container of clean hot water
into cylinder by depressing lever.
3 Remove cloth and suspend complete instrument by fully
immersing in a container of water and boil together with any needles
for 10 to 20 minutes.
4 Remove instrument from container, wrap cloth around the handle
and pump dry.
CARE AND MAINTENANCE
To ensure continued high performance from this instrument,
attention to cleanliness is essential. After each use, fl ush the
instrument and feed tube thoroughly by pumping through a warm
water detergent mix, followed by clean water. Remove the feed
tube from the instrument and suck a small quantity of NJ Phillips
Lubricant into the cylinder by immersing the inlet fi tting in the
lubricant and gently pumping the lever.
If at any time the instrument becomes sluggish in operation,
maintenance by cleaning and lubrication should overcome the
problem.
!
DO NOT store your applicator or feed tube
full of product. Clean as per the "Care and
IMPORTANT
Maintenance" instructions.
Suspending the instrument not only makes it
easier to remove, but also prevents damage should
the container boil dry. Chemical sterilization with
antiseptic solutions is sometimes practised and in
NOTE
such instances the recommendations of the chemical
manufacturer should be followed.
DO NOT attempt to sterilize by autoclaving.
LEGEND:
1. Nozzle
11. Handle
12. Cup Washer Piston
2. Nozzle Nut
3. Seal Ring
13. Piston Washer
14. Cup Support Washer
4. Nozzle Seal Ring
5. Valve & Spring
15. Seal Ring
16. Cylinder Bush
6. Lock Nut
7. Delivery Valve Cage
17. Push Rod
18. Spring Adjustor Nut
8. Seal Ring
9. Cylinder
19. Trunnion
20. Adjustor Spindle
10. Cylinder Cover
IMPORTANT: QUICK REFERENCE TROUBLESHOOTING GUIDE
SYMPTOM
PROBABLE CAUSE
1a.
Product being
Foreign matter lodged under the inlet valve.
returned to the
container from the
applicator.
Inlet valve spring is missing.
1b.
Unable to draw
Inlet valve and spring incorrectly assembled.
product from the
Foreign matter
container.
lodged under
delivery valve.
2.
Product leaking out of
Nozzle seal ring damaged.
the nozzle or air being
drawn into the cylinder
Delivery valve and spring incorrectly
from the nozzle end.
assembled (B).
Delivery valve sealing edge damaged.
Delivery cage seal ring damaged.
Fluid dripping out of
Applicator is hanging at end of feed
3.
nozzle when not in use.
tube when not in use.
4.
Air is being drawn
Foreign matter lodged on or around
into the cylinder
piston washer.
from in and around
the piston.
Piston not sealing against push rod.
Delivery valve and spring incorrectly assembled.
Feed tube damaged.
Feed tube connection at container or applicator
is split or damaged.
5.
Piston not returning
Piston o-ring and lubricating washer dry.
fully on fi lling stroke.
Blockage in inlet line.
Kinking or restriction of feed tube.
Binding of push rod within dose adjustor
assembly caused by foreign matter between
sliding surfaces.
Product too viscous for draw-off and feed
tube.
Chemical container not collapsing as instrument
draws fl uid.
6.
Hard delivery
Foreign matter in delivery valve spring or
stroke pressure.
blockage in nozzle.
15
14
27
6
16
2
13
9
8
3
5
1
4
5
7
10
12
18
11
21. Spring
19
22. Dose Adjustor Screw
20
23. Dose Adjustor Lock Nut
24. Lever Screw
25. Lever
26. Lever Pads
27. Screw
22
CORRECTIVE ACTION
Remove cylinder to access the valve and spring (5), rinse with clean water
then wipe with a soft cloth. Reassemble ensuring correct orientation of the
valve and spring.
Replace inlet valve spring (5).
Reassemble valve and spring (5) correctly (A).
Remove nozzle (1), valve and spring (5). Clean valve seat located
in front of cylinder by rinsing and wiping with a soft cloth. Clean
valve and spring (5) and reassemble ensuring valve and spring are
A
oriented correctly.
Replace nozzle seal ring (4).
Reassemble valve and spring (5) correctly (A).
B
Replace the delivery valve and spring (5).
Replace the delivery cage seal ring (8).
Hang applicator at same height or higher than off take point of feed
tube on container of product. This ensures the delivery valve is free
of load which can cause the product to leak past the valve assembly.
Replace piston washer (13) and lubricate liberally.
Remove cylinder (9). Hold rear push rod (17),
tighten piston (13) fi rmly
using wide blade screwdriver or replace push rod
C
/ piston seal ring (if applicable) (C).
Replace the inlet adaptor seal ring (15).
Replace the feed tube.
Replace container fi tting or inlet adaptor to ensure an air tight seal.
Cut feed tube for clean ends.
Remove cylinder (9), soak piston o-ring (13) and lubricating washer (14) in
NJ Phillips Lubricant.
Check inlet valve and spring (5), feed tube and container draw off fi tting for
foreign matter.
Remove restriction or reposition feed tube.
Dismantle push rod (17) from instrument and rinse it and dose adjustor
assembly with clean water. Inspect for damage. If damaged, replace aff ected
part.
Increase feed tube and draw off bore size.
Vent pack or use a Phillips Vented Draw-Off system.
Remove nozzle (1). Clean delivery valve & spring and nozzle fl uid hole.
Reassemble.
26
17
25
21
24
23
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