Spar SP-B80HI User manual

SPAR FOOD MACHINERY MFG. CO., LTD.
SP-B80HI PLANETARY MIXER
(Include Model SP-B80H, SP-B80I, SP-B80)
Installation, Operation and
Maintenance Instructions
SPAR FOOD MACHINERY MFG. CO., LTD.
NO.145, 11th Industry Rd. Ta Li City, Taichung Hsien, Taiwan, 412 R.O.C.
Tel：[phone]
Fax：[phone]
http://www.sparmixers.com
e-mail：[email protected]
2008.March
S
PAR
SPAR
MIXER

SP-B80HI / SP-B80I Planetary Mixer
1
SP- B80HI / SP-B80I PLANETARY MIXER
SPECIFICATION
Model SP-B80HI / SP-B80I
Bowl Size 80 Quarts
(I.D. 50 x H. 46.8 x TH. 2 cm)
Motor 3 H.P.
Electrics 220V/380V/415V
50/60HZ 3PH
Speeds - Agitator
(1) 1
st
Speed 60 rpm
(2) 2nd Speed 105 rpm
(3) 3rd Speed 176 rpm
(4) 4th Speed 310 rpm
Speeds –
Attachment Hub*
(1) 1
st
Speed 67 rpm
(2) 2nd Speed 118 rpm
(3) 3rd Speed 198 rpm
(4) 4th Speed 349 rpm
Dimensions (cm)
(LxWxH) 105 x 77 x 152 125 x 90 x 180 carton
Weight Gross 455 kg
Net 550 kg
Standard
Accessories*
Stainless Steel Bowl
with Beater, Whisk,
Spiral Hook, and Bowl
Truck
Optional
Accessories*
Attachment Hub, Bowl
Guard, Meat Mincer,
Vegetable Slicer…
Unitcm
Because of continual improvements, strict
accuracy of description cannot be guaranteed.
* Attachment Hub and Bowl Guards are
standard accessories for Model SP-B80HI
Note: Parts could be different subject
to different models.
CONTENTS
Specification……………………………….1
Installation…………………………………3
Electrical Connection……………………...3
Safety………………………………….……4
Correct Use of the Mixer………………….4
Gear Oil Meter……………………………...4
Annual Maintenance and Gear Oil Renewal….4
Fitting the Bowl…………………………..5
Bowl Lift & Bowl Guard………………...5
Tool Selection………………………………5
Fitting Mixing Tools………………………5
Speed Selection………………………..6
Controls and Operation…………………..6
Attachments………………………………...7
Care of the Mixer……………………….7
Mixing Capacities……………………..8
Maintenance………………………………...9
Fault Finding chart………………………..9
Electrical Wiring Diagram……….…...11~14
(A) Emergency Stop Button (G) Bowl
(B) Start Button (H) Oil Gauge
(C) Timer (I)
Bowl Handle Wheel
(D) Attachment Hub (J) Safety Guard
(E) Gear Arm (K) Feeder
(F) Planetary Shaft (L) Bowl Weld Clip

2
SP-B80HI / SP-B80I Planetary Mixer

SP-B80HI / SP-B80I Planetary Mixer
3
Figure 1
GUARANTEE
SPAR provides one year guarantee,
either the date of dispatch from our factory, or
the date of purchase from one of our
approved distributors. We will replace any
defected parts resulted from faulty design,
material or workmanship. In addition to this,
any repair must be carried out by our
authorized Service Agent. All defective parts
without no alteration or repair can be returned
to SPAR or the nearest authorized
representative, postage paid within one year
warranty.
SP-B80HI / B80I is a floor type planetary
mixer designed for commercial use by the
professional caterer. It has a total bowl
capacity of 80 Quart, combined with 4-speed
gearbox to ensure that all mixing
requirements can be met.
The intended use of the mixer is the food
processing industry, which not including the
pharmaceutical industry, chemical industry,
printing, etc.
INSTALLATION
The installation of mixer should comply
with a technician.
The mixer is lubricated and ready to run,
when it leaves the factory. During the
transportation or fitting, please do not lean
over 35 degree to avoid the gear oil leaking
from the gear oil container. Please use forklift
to transporting. Please see Figure 1.
ELECTRICAL CONNECTION
Before connecting the mixer to the
electrical supply, please check that the details
on the rating plate (located on the rear of the
mixer) correspond to the details of your
electrical connection.
The mixer is supplied with a trailing lead
fitted with a trailing lead fitted with a molded
plug. If the style of plug is unsuitable for the
socket you plan to use, the plug must be cut
off and replaced with an appropriate plug. In
terms of the 3-phase, when the mixer is
located and connected with the plug, please
make sure that the shaft goes clockwise. If
the shaft goes counterclockwise, please
replace the wires: R.S.T. (USA) L1, L2, L3,
(Europe). To replace the wires each other
until the shaft goes clockwise.
The mixer should be plugged into a
switched socket which isolates all poles and
has a minimum contact clearance of 3mm
and locates close to the mixer for use in an
emergency and to facilitate servicing (max.2
meters of cable). The machine must be
incorporated into a potential equalization
system.
The leakage current for this appliance is
no greater than 1 mA/KW. If the electrical
supply cable to the machine becomes
damaged, it must be replaced by a qualified
electrician using cable which is 3.0
specification or higher and suitable for a 3HP
motor load. The ground wire is fixed to the
machine and this connection must be kept
intact.
Note: The mixer MUST be grounded.
-The minimum requirement for all electrical
equipment is correct operation between aire
temperature of +5and +40.
-Electrical equipment is capable of operating
correctly when the relative humidity does not
exceeding 95% at a maximum temperature of
+40.
-Electrical equipment is capable of operating
correctly at altitude up to 1000m.
-Electrical equipment is designed to withstand
to protected against the effects of
transportation, and storage temperature
within a range of -25to +55and for
short periods not exceeding 24h at up to +70
.

4
SP-B80HI / SP-B80I Planetary Mixer
Figure 2
BEFORE USING THE MIXER
Before using the mixer, please ensure
that all users are familiar with the correct
operation of the mixer. In particular, care
should be taken to ensure that the bowl and
mixing tools are correctly fitted.
SAFETY AT WORK
Never place your hand or any kitchen
utensil in the bowl when the mixer is in
operation. Isolate the machine from the
electrical supply by removing the plug from
the socket before cleaning or dismantling.
Do not use the machine with any cover or
guard removed.
Certain operator notice advising about the
safe use of this mixer is attached to the
machine.
OFFICE, SHOPS AND RAILWAY
PREMISES ACT, 1963
The above Act requires that this machine
and attachments shall be operated only by a
properly instructed person or by an employee
who is under the supervision of a properly
instructed person. The instruction shall
include indication of the possible dangers
arising and the precautions to be observed.
The Act also requires that no person under
the age of 18 shall clean a machine if this
exposes him to risk of injury from a moving
part of that machine or any adjacent machine.
CORRECT USE OF THE MIXER
It is the responsibility of the operators to
use the mixer correctly within the
recommended limitations. Always follow the
instructions on the side of the machine when
changing speed. If the motor labors or the belt
slips, stop the machine and reduce the size of
the mix immediately. Damage resulting from
improper use is not covered by the SPAR
warranty.
In terms of operator safety, the mixer is
fitted with a bowl guard which is electrically
interlocker to ensure that the mixer cannot
operate unless the guard is correctly
positioned and the bowl is raised.*
* Note: Only SP-B80HI and SP-B80I are
equipped with bowl guard.
For additional safety, the mixer has a no
volt release feature which means that in the
event of a power failure, the machine will only
restart after the control button has been
pressed again. This arrangement ensures that
when the power is restored, the machine
cannot restart by its own.
-Careful handling of bagged products by
minimizing the height above the bowl base
from which they are poured.
-Careful slitting of bags in the lower part of the
bowl to allow dust free discharge of flour as
flour as possible.
-Use temporary bowl covers to minimize
openings through which flour many escape.
GEAR OIL METER
Use the gear oil to lubricate the mixer and
to prolong the life of the mixer. Before using
the mixer, please check the gear oil meter.
Please see Figure 2. When the indicator of
gear oil meter is above the half of the red circle,
the gear oil is full. Please fill the gear oil when
the indicator is below the red circle.
ANNUAL MAINTENANCE AND
GEAR OIL RENEWAL
Please unscrew and leak the oil from the
indicated oil-leaking hole. After finishing the
leaking, re-screw back tightly with the
anti-leaking coat on the screw. Fill the gear oil
to the indicated re-fill oil hole. We
recommended that any servicing or
maintenance work must be carried out by
trained technicians from a SPAR appointed
distributor.

SP-B80HI / SP-B80I Planetary Mixer
5
FITTING THE BOWL
1. Please use the
hand wheel to
lower bowl cradle
to the lowest
position.
2. Lift the bowl by
side handles and
(a) slowly position
locking pin
(located at the
rear side of the
bowl) into the
hole at the middle rear side of the cradle.
Then (b) fit two “side” holes (each hole is
located under each side handles) onto
pins on the opposite sides of the cradle.
3. Once the bowl is seated correctly on the
cradle, please secure the bowl by folding
both steady hooks (locking latches) inward
until locked tight.
Note: Please use bowl truck to load
and unload bowl containing more than
50lbs per batch.
BOWL LIFT & BOWL GUARD
The bowl cradle and bowl guard are
electrically interlocked so that the machine
will only operate with the bowl cradle in the
raised position. In addition to this, the bowl
guard must be locked into place by sliding it
into position across the top of the bowl to the
point where it will slide no further.
Only once the bowl is raised and the bowl
guard locked, the machine can operate. Thus
this ensures complete user safety at all times.
Once the guard has been opened or the
bowl lowered, the mixer will stop. If this
happens, please close the bowl guard and
raise the bowl lift and then press the START
BUTTON.
During the mixing process, additional
ingredients can be added by the chute
located on the right hand side of the bowl
guard.*
* Note: Only SP-B80HI and SP-B80I are
equipped with bowl guard.
TOOL SELECTION
The beater, whisk and spiral dough hook
are meant for the work implied by their names.
Figure 3 shows the typical uses for each of
the tools.
Beater: Firm mixes such
as light pastry, cakes
biscuits, icings fillings and
mashed vegetables.
Spiral Dough Hook:
Heavy mixes such as
dough, pie pastry. .
Whisk: Light mixes such
as whipped cream,
mayonnaise, egg whites,
pancakes and soufflés.
Figure 3
FITTING THE MIXING TOOL
Note: Install the bowl BEFORE
inserting agitators.
Slide the bayonet
fitting of the tool onto the
drive shaft and twist
clockwise to secure it in
position. To remove the
mixing tool, slide the tool
up the shaft slightly and
twist counterclockwise.
Please see Figure 4.
Please refer to
Capacities &
Recommended Agitators
Chart for tool selection
and optimum
performance.
Note: Agitators should always rotate
in a clockwise direction around bowl. If
agitators move counterclockwise, please
contact licensed electrician immediately
to remedy incorrect wiring.
Note: Always wash agitator with mild
soap and apply light quantity of mineral
oil to planetary shaft after cleaning.
Figure 4

6
SP-B80HI / SP-B80I Planetary Mixer
Table 1
SPEED SELECTION
Before changing speed, the mixer must
always be stopped by pressing the red button.
The necessary speed can then be selected
before restarting the machine by pressing the
green start button. The speed selected
depends largely on the quantity and
consistency of the product. It is
recommended that mixing is always started at
the lowest speed and progressively increased
to the desired setting. In an emergency
situation, always use the red emergency stop
button to stop the mixer. Table 1 shows the
recommended speeds for the range of tools.
Recommended Speed
1st
Speed 2nd Speed 3rd Speed 4th Speed
Whisk
Beater
Hook
CONTROLS
A: Emergency Stop Button (Red Button)
To operate mixer, please check that the
Emergency Stop Button (Red Button) is
not pressed.
To stop mixer at anytime during
operation, please press the Emergency Stop
Button (Red Button) located at the left hand
side of the control panel.
B: Start Button (Green Button)
Press the Start Button (Green Button)
located at the middle of the control panel to
star mixing.
C: Timer
SP-B80HI/ SP-B80I are equipped with a
15 minutes timer. In terms of timing operation,
timer must be set at least more than 5
minutes. Mixer will automatically stop once
the set timing has expired.
a)Timing Operation: Turn timer knob in a
clockwise direction at least five minutes
past “0” to the desired time. Push start
button to start the mixer. If you want to set a
timing less than five minutes, please turn
timer knob clockwise to six and then turn it
counterclockwise back to desired time.
Push the start button to start the mixer.
b)Manual Operation: Turn timer knob in a
counter-clockwise direction until it stops.
Push start button to start the mixer. Mixer
will now run indefinitely. Push stop button to
stop the mixer.
Note: Mixer will not operate unless the
bowl cradle is raised in the uppermost
position. Please be sure to raise the bowl
support until it stops.
Note: For additional safety, the mixer
has a no volt release feature. So that in the
event of a power failure, the machine will
only restart by pressing the green start
button again after the power is restored.
Noise Test Report:
(1) Model No.: SP-B80HI
(2) Background noise:
Add Flour: background noise level is 59.8 dB(A)
Dry running: background noise level is 52.6 dB(A)
(3) Distance: 1m from the surface.
(4) Height: 1.6m from the floor.
Unit: dB(A)
A B C D E
Add Flour 69.6 70.1 69.9 70.6 69.1
Dry Running 59.1 60.9 60.8 61.0 60.5

SP-B80HI / SP-B80I Planetary Mixer
7
Figure 5
ATTACHMENTS*
The ranges of
attachments that can
be operated from the
attachment hub are
listed below. When
using an attachment,
please lubricate the
(D) Drive End by using a food
quality grease or oil. Please refer to Figure 5
to assemble an attachment.
Release the (G) Thumbscrew and slide
the shaft of the attachment into the hub.
Please ensure that the (D) Drive End
engages in the socket within the hub. Then
rotate the attachment to line up the (E)
Location Peg with its mating hole in the hub
and push firmly home. Finally, tighten the
thumbscrew to secure.
* Note: Only SP-B80HI and SP-B80H are
equipped with Attachment Hub.
Note: Only fit attachments when the
mixer is stationary. Never fit any
attachments when the mixer is under
operation. Do not use any attachments
when the mixer is mixing.
Table 2 shows the recommended speed
range for some of the available attachments.
Recommended speed
1st
gear 2nd gear 3rd gear 4th gear
V99S
VH-12
Table 2
V99S Vegetable Slicer
Vegetable Preparation With
a range of 7 plates to slice,
grate or shred all types of
vegetable and fruit from nuts
and cabbage to carrots and
cheese.
VH-12 Meat Mincer
A no.12 mincing attachment
which works wonders with
meat, fish and vegetables
alike.
CARE OF YOUR MIXER
The mixer is designed for simple
maintenance carried out by operators. It may
be necessary from time to time to apply a little
Vaseline and oil to the rods on which the bowl
cradle slides. If so, use a little food quality
lubricant, ensuring that there is no excess oil
that could contaminate the food mix.
Water jet cleaning is not allowed.
Clean the mixer thoroughly after use. The
body should be wiped down with a damp
cloth after first isolating the machine from the
electricity supply. Do not spray the machine
with or immerse it in water. Do not forget to
clean the rear of the machine and do not
allow the rear vents to become blocked as
this may result in overheating. Pay particular
attention to the bowl pins and any
surrounding areas of the cradle to prevent the
accumulation of mix, as this could prevent
correct location of the bowl. For the same
reason ensure that the beater shaft and each
of the sockets on the tools are cleaned
thoroughly. The bowl and tools should be
washed in hot soapy water, rinsed and dried
before being put into storage. Do not wash
the tools in a dishwasher, as the polished
finish will be adversely affected by the
dishwashing chemicals.
- Steady state voltage: 0.9~1.1 of nominal
voltage.
- Frequency: 0.99~1.01 of nominal frequency
continuously.
- Avoid exposing to vibration environment.
- Avoid exposing to direct sunlight or heat
rays.
The overcurrent protection device should be
rated 13A in supply side by user at least.

8
SP-B80HI / SP-B80I Planetary Mixer
CAPACITY
Table 3 lists the recommended capacities of finished weights of regular mixes. Although the
machine may be capable of mixing larger quantities, it will lead to excessive and premature wear
and possible failure. Overloading also results in lengthy processes and unsatisfactory results.
Table 3
Product Maximum Regular Mix (kg) Whip Beater Hook
Mashed Potatoes 40 lbs (18.2kg)
Frosting 3 lbs
Fruit Cake 80 lbs
Sponge Cake 54 lbs
Honey Cake 80 lbs
Angle Cake 60 lbs
Cookies 30 lbs
Brioche 115 dz.
Whipping Cream 16 qts
Mayonnaise 22 qts
Butter 32 qts
Egg White 2 qts (2.1L)
Muffin 90 dz.
Pie 60 lbs
Light Bread Dough
(65% moisture content)
86 lbs-2nd speed
Heavy Bread Dough
(60% moisture content)
73 pts-2nd speed
Pizza Dough
(50% moisture content)
70 pts-1st speed
Pizza Dough
(45% mois
ture content)
63 pts-1st speed
1. Recommended weight for a finished mix unless otherwise stated.
2. Water content e.g. 25# flour / 12.5# water = 50% moisture.
3. For pizza dough with lower moisture content, please consult SPAR
4. For higher gluten flour reduce dough batch by 25%.

SP-B80HI / SP-B80I Planetary Mixer
9
MAINTENANCE
Regular maintenance is necessary on all machines if they are to remain in good working
condition. It is strongly recommended that all maintenance must be carried out by trained
technicians from a SPAR appointed distributor.
ON A REGULAR BASIS
Clean the machine thoroughly after use and lubricate the rods with Vaseline or lubrication
oil which the bowl cradle slides. After clean the beater shaft, please wipe and lightly lubricate the
beater shaft with Vaseline to prevent rusting. (SEE CARE ON YOUR MIXER)
ON AN ANNUAL BASIS
Check that all bolts are tight and bowl guard secure. Please check the gear arm, bowl
handle wheel and replace these parts if it is necessary.
FAULT FINDING
FAULT CHECK POSSIBLE REASON AND ACTION
REQUIRED
No power to mixer Check plug socket
Check wiring in plug
Check fuse in plug
Check or change cable
Check microswitch
Check circuit breaker over
load or short
Mixer not plugged into a live socket or not
switched on
Plug incorrectly wired – rewire correctly
Possible faulty fuse – replace fuse
Cable damaged or split – replace cable
Limit switch damaged or faulty – replace
switch
Circuit breaker shut off or constantly
short – reset or replace the circuit breaker
(automatically reset).
Mixer fails to operate Check transmission belt
Check gear change lever Belt damaged or broken – replace belt Machine will not operate if out of gear –
put in gear
Mixer becomes
noisy Check bowl and tools
Check work surface
Check the wear of bearing
Ensure that bowl and tool are correctly
seated.
Uneven surfaces create excessive
resonance.
Worn bearings – replace bearings
Mixer loses power Check capacity
Check power Overloading of bowl – reduce load Power failure – please restore the power
Motor overheating Check supply voltage Voltage should correspond to rating plate
Oil on planetary
shaft Check oil seal Worn oil seal – change oil seal
Mixing tools stuck on
planetary shaft Check planetary shaft bent, unclean or rusted.
Planetary shaft twisted or bent – please
change planetary shaft.
Planetary shaft rusted – please use
descaler for derusting.
Turn planetary shaft anti-clockwise to meet
square groove, gently knock down mixing
tools.


It is recommended that any servicing or maintenance work must be carried out by a
trained technician or electrician.


Isolate the mixer from the electricity supply by removing the plug from the socket
before cleaning or servicing.


Isolate the mixer from the electricity supply by removing the plug from the socket after
long period of no use.

10
SP-B80HI / SP-B80I Planetary Mixer
Warning
We recommended that do not lean the mixer over 35 degree during the transportation to
avoid the gear leaking from the gear oil container
After replacing the parts by technicians, please screw back tightly with anti-leaking coat to
avoid the gear oil leaking after replacement.
We recommend that the all maintenance must be carried out by a trained technician.
Carry out on a more frequent basis if machine is arduously used.
Do not let the children using the mixer.
Do not using the mixer before fully reading this manual.
Do not let the cable near the hear, touch the rough object, press against he cable, or directly
pull the cable for unplug.
Do not insert any object into the air vent of motor or into the bowl.
Please unplug while not using the mixer.
The following warning is in the user instruction:
Through poor conditions of the electrical MAINS, shortly voltage drops can appear when
starting the EQUIPMENT. This can influence other equipment (such as blinking of a lamp). If the
MAINS-IMPEDANCE Zmax0.8 OHM, such disturbances are not expected. (In case of need,
you may contact your local supply authority for further information)

SP-B80HI / SP-B80I Planetary Mixer
11
Electrical Diagram – SP-B80HI 220V Single Phase
(Include Model SP-B80I)
Item Description
S1 EMERGENCY STOP BUTTON
S2 START BUTTON
S3 MICROSWITCH (interlock guard)
MICROSWITCH (transmission gear)
S4 MICROSWITCH (height adjuster)
KM1 CONTACTOR COIL OF 220V 50Hz
24V
K1 TIMER
FR1 OVELOAD RELAY
M1 MOTOR 3 HP SINGLE PHASE 220V
T1 TRANSFORMER AC 24V
FU FUSE FIXTURE+FUSE 1A (5X20)
Manufature
Telemecanique
Telemecanique
Omron
Omron
Omron
Allen-Brodley
Ann yig
Allen-Brodley
Shiug jiann
Sung chuan
Conquer
Part number
XB2-BS542
XB2-BW3361B
D2VW-5-1M
Z-15GW22-B
Z-15GQ22-B
100-A24NJ3
AT-615
193-A4H1
HTB-32
Qty Rem.
1
1
1
1
1
1
1
1
1
1
1
1

12
SP-B80HI / SP-B80I Planetary Mixer
Electrical Diagram – SP-B80HI 220V Single Phase
(Include Model SP-B80I)

SP-B80HI / SP-B80I Planetary Mixer
13
Electrical Diagram – SP-B80HI 230V/400V Three-Phase
(Include Model SP-B80I)
Item Description
S1 EMERGENCY STOP BUTTON
S2 START BUTTON
S3 MICROSWITCH (interlock guard)
MICROSWITCH (transmission gear)
S4 MICROSWITCH (height adjuster)
KM1 CONTACTOR COIL OF 220V 50Hz 24V
K1 TIMER
FR1 OVELOAD RELAY
M1 MOTOR 3 HP SINGLE PHASE 220V
T1 TRANSFORMER AC 24V
FU FUSE FIXTURE+FUSE 1A (5X20)
Manufature
Telemecanique
Telemecanique
G.G.T
Omron
Omron
SCHNEIDER
ANN YIH
SCHNEIDER
Shiug jiann
Sung chuan
Conquer
Part number
XB2-BS542
XB2-BW3361B
MFI MFR
Z-15GQ22-B
Z-15GW22-B
LR3D26/036
AT-615
193-A4H1
HTB-32
Qty Rem.
1
1
1
1
1
1
1
1
1
1
1

14
SP-B80HI / SP-B80I Planetary Mixer
Electrical Diagram – SP-B80HI 230V/400V Three-Phase
(Include Model SP-B80I)

SPAR MIXERS
HISTORY
FACILITIES
QUALITY CONTROL
FEATURES
SPAR Food Machinery Mfg. Co. Ltd. was established in 1980 with the goal of
producing top of the line multi-functional planetary mixers. SPAR began by
supplying the demands of the local bakery market in Taiwan. After establishing the
SPAR brand as the leading planetary mixer in Taiwan, SPAR began to expand into
other markets. Now SPAR supplies mixers to over 50 countries in six continents,
SPAR is a truly global competitor. SPAR has become such a success because it
has always remained true to its core principles, such as dependability, value,
innovation, and service.
SPAR has a new state of the art production facility. This facility has been designed
to optimize production schedules, thus cutting delivery times to customers. Also,
integrated into this production facility is a modern paint baking facility. This helps
SPAR achieve a high quality finish as well as meet today’s demanding sanitary
standards. SPAR is the only mixer manufacturer in Taiwan to have its own baked
paint facility. SPAR also has a second manufacturing plant which specializes in the
production of heavy duty mixers.
♠ heat treated hardened steel alloy gears, 25% thicker than industry’s leader
♠ abrasion resistant transmission design
♠ efficient, custom made, powerful motor
♠ high torque transmission for heavy loads
♠ long lasting lubricant quiet operation
♠ overload protection
♠ simple maintenance
♠ front mounted controls for easy access and operation
♠ unprecedented 3 year transmission warranty (available only in the US and
Canada) on most models, see warranty for details
♠ molded, heavy – duty, quick-release plastic safety guard with ingredient chute
and micro switch
SPAR uses state of the art CNC machines to cut all body castings and mill all gears
and shafts. Samples from each batch are evaluated to exacting standards by a
computerized Italian MPM 3-dimensional analyzer.