NS350A Metcalfe Automatic Gravity Feed Slicer Instruction Manual

: September 21, 2024
: metcalfe

Table of Contents

NS350A Metcalfe Automatic Gravity Feed Slicer
Features
Specifications
Installation
Operation
Cleaning Instructions
Reassembly After Cleaning
Sharpening the Knife
Lubricating Your Slicer
Slicer Safety Tips
Troubleshooting
Maintenance
Metcalfe Warranty
CONTACT
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

NS350A Metcalfe Automatic Gravity Feed Slicer

Your Slicer

Metcalfe NS350A Heavy Duty Automatic Slicer

Features

Automatic slicer designed to cut large quantities of food. Suited to large restaurants, supermarkets, delis, butchers and central production kitchens / canteens, where high volume of meat types is required, and precise control of the automatic slicing feature is necessary
Two independent motors (one for blade and one for carriage movement)
Can be used as a fully automatic slicer or switches to manual
Simple, intuitive touch control panels allow for the selection of multiple slicing options
Hollow ground chromed carbon steel blade
Easy set thickness control allows for precision slicing
Made from high polished, anodised food grade aluminium for durability and hygiene
Large base to ensure slicer has a large capacity to cope with large products
Ergonomic design with smooth, rounded edges to allow for fast and easy cleaning and improved levels of hygiene
Fully interlocked and safe guarded for full compliance of CE legislation. This ensures all-round blade protection for the ultimate user safety during cleaning
Built-in, self-aligning sharpening and de-burring unit
Table/carriage, blade cover, blade and sharpening unit are detachable for easy, safe cleaning
CE Approved

Specifications

Model

| Blade (mm)| Phase (Ø)| Motor (Volt)| Frequency (Hz)| Current (Amp)| Power (kW)
---|---|---|---|---|---|---
NS350A| 350| 1| 220| 50| 2.59| 0.57

Capacity

Model

| Cutting Capacity (mm)| Carriage Movement (mm)| Max Slice Thickness (mm)| ****

Slices Per Min

---|---|---|---|---
NS350A| ● 250| □ 250 x 280| 365| 20| Min 25 – Max 86

Dimensions | Shipping Information

Model

| Overall Dimensions D x W x H (mm)| Net Weight (kg)| Packed Dimensions D x W x H (mm)| Packed Weight (kg)| Volume (m3)
---|---|---|---|---|---
NS350A| 890 x 1030 x 850| 62| 720 x 840 x 760| 66| 0.46

Optional Extras

For more information and prices please contact the sales department.

Installation

Suitable Products for Slicing
The following are products that can be sliced:

All types of cold cuts (cooked, raw, smoked)
Boneless meat (cooked or raw at a temperature of no lower than +3°C)
Small quantities of cured meats (Bresaola, Parma Ham, Serrano Ham & Salami etc)
Bread and cheese (those that can be sliced, such as Gruyere, Fontina, etc.)

The following are products that cannot be sliced because they could cause damage to the machine:

Frozen food (Only with Serrated Blade )
Deep-frozen food
Food with bones (meat & fish)
Vegetables
Any other products not meant for consumption

Unpacking
Unpack the slicer immediately after receipt. Please inspect the slicer to ensure there is no damage and that all parts are included i.e. Knobs, Feet and Knife Removing Tool. If the machine is found to be damaged, keep all the packaging material and contact us or contact your source of the equipment immediately.

You should receive with your slicer:

1 x Metcalfe Tasteless Oil
1 x Instruction Manual
1 x Flat Head Screwdriver
1 x Knife Removing Tool

If any of the above items were not received with your slicer, please refer to page 14 for contact details and inform us immediately for replacements.
Please ensure that you complete the product information section.
Installation

Read this manual thoroughly before installation and operation. DO NOT proceed with any installation nor operation if you have any questions or do not understand anything in this manual. Please see Metcalfe Catering Equipment Ltd contact details on page 14 to resolve any queries you may have.
Make sure to clean and sanitize the entire slicer before use (see Cleaning Instructions on Pages 8-10).
Select a location for the slicer that is level, smooth, solid, dry, non-skid and suitable to withstand the weight of the slicer plus the food to be sliced.
Before connection ensure that the features of the electric power supply system are the same as those indicated on the data plate of the machine.

Operation

Manual Use

Ensure the slicer is turned off and that the thickness selection knob is set to “0”.
Turn the function mode selector knob anti-clockwise to Manual.
Pull back the carriage completely (towards the operator) to the loading position.
Lift the end device up, into the rest position.
Place the product onto the table, the product will press against the fence plate because of its weight. Block it with the end device by lowering it onto the product and pressing down slightly.
Rotate the thickness selection knob anti-clockwise to the desired setting.
Turn the slicer on by pushing the start button. The power indicator light, which is located between the on and off switches, will illuminate.
DO NOT hold the food product with your hand. Never put your hand on or around the table while the slicer is on. The end device handle is the only part of the slicer you should touch while slicing.
Grip the handle attached to the meat table support and manually push the carriage back and forth. This handle and the end device handle are the only part of the slicer you should touch while slicing. DO NOT catch slices with your hands, let slices drop onto the receiving area.
If a product needs to be adjusted during slicing, first turn the slicer off and then pull the table all the way towards you.
When the weight or size of the product does not allow a proper slice, use the end device handle and apply some pressure to the product.
After the last slice stroke, pull the carriage all the way towards you. Turn the slicer off by pressing the stop button, the power indicator light will go out. Turn the thickness selection knob clockwise until it stops to close the slicer table.
You can now unload the product from the table.

Automatic Use (Control Panel without Slice Counter)

Ensure the slicer is turned off and that the thickness selection knob is set to “0”.
Turn the function mode selector clockwise to the Automatic position.
Pull back the carriage completely (towards the operator) to the loading position.
Lift the end device up, into the rest position.
Place the product onto the table, the product will press against the fence plate because of its weight. Block it with the end device by lowering it onto the product and pressing down slightly.
Start the blade by pressing the I button of BLADE (c). The light (d1) will illuminate; this shows the normal speed of the blade. Press (d) to increase or decrease the speed (3 different speeds).
Regulate the thickness of the slice required and then start the carriage by pressing the I button of CARRIAGE (e). The light (f) will illuminate.
When the carriage starts moving, the lights that are on are (h1) = medium carriage speed and (i1) = the longest stroke of the carriage.
You can adjust the stroke and the speed of the carriage by pushing the buttons (h) and (i), the corresponding light will turn on to show the selection you have made.
To turn the machine off first push the carriage stop button O (g), so that the carriage can go to its initial position, and then turn the blade off by pushing the blade stop button O (a).

Note: if you accidentally push the start button before selecting the automatic mode, all the lights will turn on to indicate that you have made an incorrect command.
Automatic Use (Control Panel with Slice Counter)

Ensure the slicer is turned off and that the thickness selection knob is set to “0”.
Turn the function mode selector clockwise to the Automatic position.
Pull back the carriage completely (towards the operator) to the loading position.
Lift the end device up, into the rest position.
Place product onto the table, the product will press against the fence plate because of its weight. Block it with the end device by lowering it onto the product and pressing down slightly.
Start the blade by pressing the I button of BLADE (a).
Regulate the thickness of the slice required and then start the carriage by pressing the I button of CARRIAGE (c)
To stop the carriage and blade you must push the O buttons (a) and (c).

Regulate different parameters:

Change the speed of the blade by pushing the + or – (h)
You can increase the speed of the blade pushing the button +. You can see the effect of this action on the panel (h1), you can see the number 1 to 9 (1 is the lowest speed, 9 is the highest speed).
Change the speed of the carriage by pushing the + or – (i)
You can increase the speed of the carriage blade by pushing the button +. You can see the effect of this action on the panel (i1), you can see the number from 1 to 9 (1 is the lowest speed, 9 is the highest speed).
Change the number of stroke per minute by pushing the + or – (l)
You can increase the number of stroke by pushing the + button. You can see the effect of this action on the panel (l1), you can see the number from 1 to 9 (1 being 26 stroke/minute, 9 being 87
stroke/minute)

You can adjust these parameters also while the machine is working.
Number of slices
You can set the number of slices pushing the button (d) for units, the button (e) for tens and the button (f) for hundreds, you can see the result of these actions on display (d1, f1, and e1)
Example: If you want to set 65 slices, you must push button (d) five times and button (e) six times.
While the machine is working you can see how many slices the slicer has done on the display (g).

Cleaning Instructions

Daily cleaning should be considered mandatory for all equipment used in the preparation of food. When using a meat slicer and with the possibility of cross-contamination, these units should be cleaned before slicing each new product. Once your slicer makes contact with any food product, the entire slicer, including removable parts, must be thoroughly cleaned. This process is to be repeated at the end of each working day. If the machine has not been used for a while it must be cleaned before use.
To ensure the slicer is cleaned properly and to avoid damage, the instructions below should be followed.
Disassembly
Turn the slicer off and unplug from the mains.
Turn the thickness selection knob clockwise past “0” until it stops so the fence plate covers the blade.

Disassembling the table

With the thickness selection knob on “0” pull back the carriage all the way to the left.
Whilst supporting the table, turn the table locking knob anti-clockwise all the way until you hear the click of the pin locking into place. It may be necessary to move the thickness selection knob 1-2mm over the ‘0’ position at the same time.
Once fully unscrewed lift the whole of the table and carriage from the machine.

Disassembling the center plate (blade cover)

Unscrew the center plate spindle knob (anti-clockwise) and remove from the rear of the machine.
Lift the centre plate using the knob located at the bottom.

Disassembling the knife

Fit the knife removing tool (supplied with machine) over the knife and secure it by tightening the two knobs.
Once the knife removing tool is secure loosen the four screws securing the knife to the pulley.
Pull off the knife removing tool with the knife ALWAYS REMOVE HOLDING THE KNOBS.

Disassembling the slice deflector

Squeeze the tab and remove the slice deflector in the direction as shown below.

Disassembling the sharpener

Lift the sharpener cover.
Loosen the side knob of the sharpener block and remove it.
Then remove the whole sharpener by pulling it upwards from the slicer.

Cleaning

Only use warm water and a mild detergent to clean all parts, using a soft, spongy cloth and nylon brush.
Do not use other metal products to scrape or remove stubborn deposits of sliced product.
Never leave any leftover product on the slicer (Clean at least once a day).
DO NOT clean the unit, or any parts of the unit in a dishwasher.
Rinse all parts after cleaning with clean water and dry with a soft cloth.
Do not use abrasive cleaners, acids, steel wool or high-pressure water jets which might damage the machine.

Cleaning the knife

To clean the knife whilst still on the machine, use a damp cloth on the blade and move it slowly from the centre outwards to the edge.
Dry the knife in the same way.

Cleaning the back knife guard

To clean the back knife guard, pass a damp cloth between the blade and the back knife guard.

Cleaning the machine body

Clean the machine body with a damp cloth or sponge, rinsing frequently with hot water. Dry carefully.

Reassembly After Cleaning

Reassembling the sharpener

Reposition the sharpener by inserting the locking tie rod (1) and turn screw until tight (2)
Close the sharpener cover (3)

Reassembling the slice deflector

Carefully return the slice deflector to its original position, fitting it in the plastic support.

Reassembling the centre plate

Insert the centre plate over the knife and ensure that the square section joint is in its proper place.
Insert the center plate spindle completely and rotate clockwise to secure.

Reassembling the table

Insert the table on the carriage
Tighten the table locking knob
Check that the table moves freely from left to right
Check that the thickness selection knob works correctly

Sharpening the Knife

When and How Often to Sharpen the Knife

Symptoms of a dull knife are excess waste on the unsliced portion.
The blade needs to be sharpened periodically to provide consistent slices and maximum food product.
Sharpening the blade lightly every few days is more effective than heavy sharpening at less frequent intervals.
WARNING: The blade can be sharpened up until the distance between the cutting edge of the blade and the inside border of the blade guard ring is no more than 6 mm, corresponding to a decrease of about 10 mm of the size of the original diameter. Once this value has been reached, it is NECESSARY TO REPLACE THE BLADE.

Sharpening the Knife
NOTE: Before starting check that the grindstones have been cleaned.

Turn the slicer off and rotate the thickness selection knob clockwise until it stops and the slicer fence plate covers the knife.
Pull back the carriage all the way to the left.
Clean and dry both sides of the blade before sharpening. Please refer to cleaning instructions.
Lift the sharpener cover.
Turn the sharpener towards the blade. The sharpener is now in the correct position.
Plug in and select the start button on the slicer.
Push the sharpening stone button and keep it pressed for 10-15 seconds
Press the deburring button for 2-3 seconds (more could damage the blade edge).
TURN SLICER OFF before inspecting.
Pull the fixing sharpener knob (1) in order to unhook the sharpener from the sharpening position and turn the body (2).
Close the cover.
Clean the entire slicer.

Lubricating Your Slicer

NOTE: Use only the tasteless oil provided or white Vaseline oil. Do not use vegetable oils!

Lubricating the bottom runner guide bars (weekly)

Move the carriage as close as possible to the operator
Insert the oiler in the special hole/lubricating screw
Squeeze the oiler so that a small amount of oil goes into the hole
Remove the oiler and slide the carriage 3 to 4 times.

Lubricating the transversal guide rods of the table and end device (weekly)

Put a small amount of oil on the rod and slide the group 3 to 4 times.
Clean as necessary removing any excess oil.

Slicer Safety Tips

To avoid serious personal injury:

NEVER touch the slicer without training and authorisation from your supervisor or if you are under the age of 18. Read this instruction manual first.
ONLY install the slicer on a level, non-skid surface that is non-flammable and located in a clean, well-lit work area and away from children and visitors.
NEVER HOLD THE FOOD PRODUCT WHILE SLICING. Hold only the end device handle while slicing.
BEFORE CLEANING, SHARPENING, SERVICING, OR REMOVING ANY PARTS always turn the slicer off, turn the thickness selection knob clockwise until it stops and unplug power cable.
NEVER touch rotating knife.
ALWAYS keep hands clear of all moving parts.
ALWAYS turn slicer off, turn the slicer thickness selection knob clockwise until it stops.
NEVER place the power cord over the unit.

Troubleshooting

If the slicer is not working correctly please check the list below before contacting an engineer or Metcalfe Catering Equipment Ltd.

Problem	Possible Causes	Action Required

Pressing the start button does not start the machine.

|

No electricity.

|

Check that the plug is correctly inserted.

Pressing the start button the machine starts but the working light does not come on.|

Light is defective.

| Do not use the machine if the light does not work.

Contact Service for assistance.

The machine starts but the motor heats up too much and gives off a bad odour.|

Defective motor.

| Do not use the machine. Contact Service for assistance.
The machine vibrates.| Defective transmission.| Contact Service for assistance.
Excessive resistance in cutting the product.|

The blade is not sharp.

|

Sharpen the blade.

The blade slows or stops under stress.

|

Loose belt.

|

Contact Service for assistance.

Sharpening is no longer regular.

| Grindstones are excessively dirty.| Clean the grindstones.
Grindstones are worn out.| Replace the grindstones. Contact Service for assistance.

The sliced product is frayed and irregular.

| The blade is not sharp.| Sharpen the blade.
The blade is excessively used.| Replace the blade.

Contact Service for assistance.

The machine does not stop when the button is pressed.

|

Control circuit is defective.

| Pull out the plug to stop the machine immediately and contact Service for assistance.

If the problems persist and the assigned solution does not remedy the problem, please call our Service Department.

Maintenance

Only the maintenance listed below is recommended for the operator to carry out, all other maintenance should be done by an approved engineer:

Knife sharpening.
Lubrication of the bottom runner guide bars and end device (weekly).
Check the condition of the electrical cable and the cable gland on the base of the machine (periodically).
Replace Knife.
Replacing the sharpening stone.

Maintenance to be carried out by engineer only:

Replacing the components of the electrical system under the base.
Repairing the structural parts, repairing and/ or replacing components under the base.

Spare Parts and Service

For more information on Metcalfe spare parts, accessories, and service support, including breakdown drawings and parts lists please contact us on the details below.
Please always quote the Serial Number of the machine. This can be found on the serial number plate which is located on the right-hand side of the machine’s base.

Metcalfe Sales & Spares Department sales@metcalfecatering.com
Metcalfe Service Department service@metcalfecatering.com
Metcalfe Website www.metcalfecatering.com
Metcalfe Telephone Number 01766 830 456

Additional copies of this instruction manual can be obtained by either visiting our website or contacting the sales department.

Product Information
Please complete the below details and keep in a safe place. Ensure that you complete the Model No & Serial No sections for future reference when enquiring about spare parts and technical assistance.

Please retain this information for your records

Metcalfe Warranty

All Metcalfe products are guaranteed against defects in material and workmanship for a period of one year from date of invoice, except where specifically noted.
The Company’s obligation under this warranty is limited to repairing or replacing, without charge, any part or parts found to be defective under normal use, in accordance with the specified operations manual and capacity ratings.
On all return to factory warranty items, it is the responsibility of the purchaser to return the entire unit to the factory, in a clean condition, properly packed and labelled.
All repairs, alterations or replacement of materials or parts not authorised by Metcalfe will automatically void all warranties in their entirety.
All Metcalfe slicers (except Simple Line) and EC20 chipper are covered by a 2-year warranty (1st year parts and labour, 2nd year parts only) and full after sales service.
All Metcalfe MP mixers are covered by a 3-year warranty (1st years parts and labour, 2nd and 3rd year parts only) and full after sales service.

There is a limited 6-month warranty on the following: