This article is applicable to Knitmaster/Silver Reed machines; however, you may find it useful for other Japanese machines.
I found a DVD called Knitting Machine Maintenance by Peter Free on eBay for £3. Have a search, it is very informative. This video by Peter Free is also available on Youtube. I have created a list of other useful videos at the end of this post.
When you first get your machine, you will need to do a thorough clean and check. I would then read both the monthly and the annual clean sections and do everything including full checks of tools and carriage.
Often when you get a secondhand punchcard machine, the carriage drums will not move. You will wreck your needles and carriage if you force it across your machine. I have found that the best way to loosen them is to turn over the carriage and add a drop of oil to the drums. Then leave overnight. If they are still stuck then I would use a hair-dryer, on a warm setting, to gently heat up the drums in order to loosen the dried-up grease/oil on the drum shafts.
If you use a ribber then you would need to clean the ribber bed and carriage in a similar way to the main bed.
If you use mohair type yarns, then you may need to do the annual maintenance (minus the needle clean) … after every garment! I tend to avoid mohair or hairy yarns for easier maintenance.
Quick Clean (After Every Garment)
You will need either the small cleaning brush that came with the machine and/or a ½ inch natural bristle paintbrush.
You will also need a vacuum cleaner with narrow nozzle attachment.
First, remove the main carriage and brush out any dirt/fluff in the back and front channels and across the metal parts that touch the carriage. Leave to one side.
On the main bed push all the needles to holding position using the flat side of your small cleaning brush (or ruler or similar item). Then using the brush side, gently brush over the needles, back to front, pushing any fluff to the front gates.
Now gently vacuum the fluff away. Also vacuum any dust on the underneath of the carriage.
The yarn mast wires will lose their spring over time, so release any yarn from them, if you are not going to use the machine for a few weeks or more.
Cover Your Machine
Cover your machine when not in use. A polythene sheet may trap moisture and rush your machine. A cotton sheet can fill your machine with dust/lint. I prefer to use a microfibre or polyester sheet to protect my machine.
Regular Clean (after every 4 – 5 garments)
You will need small cleaning brush/paintbrush, long stem cleaning brush (available at BSK or your favourite knitting machine supplier), lint free cloths (micro fibre cloths are ideal), knitting machine oil (BSK etc), You may also need a pair of pliers and tweezers.
Take this opportunity to clear your knitting table/area of all tools and yarns ready for a sort out. I put my tools in an old shoe box so not to lose anything. I put a few things in the tool box on the machine. I then only take out what I need for the next garment. It is surprising how many things end up on your knitting table.
Take off the carriage, turn over and with brush, brush out and fluff from back rail, all the cams and the front rail.
Now take your lint free cloth and wipe out all the old oil from the back and front rails. Also gently wipe off in between the cams or moving parts that have old oil. Put to one side.
We do not need to oil the carriage for the Knitmaster (nor the Toyota) as the bed oil will get into the carriage. However, you do need to add a drop of oil the back of the Brother carriage at the two back corners on top of the grey plate.
Check Sponge Bar
Remove the needle retaining bar, also called the sponge bar, from the channel. You may need a long handled flat large flat head screwdriver or the square end of a wooden chopstick top push the bar out of the machine far enough to pull with your fingers or square-ended pliers.
The sponge should have height and spring to hold down the needles. Trim off any frayed edges. Don’t cut into the sponge. If the sponge is flat, then it will need replacing, or you can buy a whole new sponge bar. Replace or new sponge bar as described in previous post but do not put back in your machine yet. A sponge wears from use, from sunlight and from oil. It will probably only last about 6 months unless it is a long-life Smartco sponge bar.
Clean Sponge Bar Channel
Now put the end of the long stem brush into the sponge bar channel, underneath the needles. Slowly twist and push the brush through the channel to get out the fluff from the bed. You should twist towards the front of the machine ie anti-clockwise from the right and clockwise from the left of the machine. It should come out the other end. Mine never does as it bends into the machine. Therefore, I twist from both ends of the machine as far as it will go. Repeat as many times as needed until the channel is clean… Look through to make sure it is clear.
Then replace the sponge bar. Remember to hold down the needles (I use a 12-inch ruler) and with the sponge side facing down, slowly push through the bed over the needles, moving the ruler along the needles with one hand as you push the bar with the other.
Clean Main Bed
Brush the main bed as described in previous section. Across all the needle bed to the needles. Brush behind the back rail and the front rail. Then brush fluff from needles (using back to front strokes) across the number strip and through the gates.
Check the yarn masts and remove any fluff between the tension disks.
Now wipe off all the old oil from the main carriage. The back rail, main bed and the front rail. Also do a quick wipe of the needle butts.
Get some proper knitting machine oil from your favourite knitting machine supplier (I got mine from BSK). Put one or two drops on a clean lint-free cloth and wipe over the back rail. Add more oil and wipe over the front rail. Add another drop on a clean corner and wipe over the needle butts.
Using a clean microfibre cloth, spray (away from the machine) a little Groom cleaner onto your cloth. Wipe over the plastic parts of your machine to make them look clean. Pick up your carriage and wipe over the plastic top. Replace on the machine and check that everything is moving.
Sort out your tools/yarns and declutter, put away, reorganise etc. so that your workstation is ready for action.
If you are a regular knitter you may need to do this every year. As well as a regular clean, you should also clean all the needles, and do a thorough clean of the tension mast and sinker plate.
You will need in addition to the regular clean, a glass mason/kilner jar with a tight fitting lid. This should be taller than your machine needles and wide enough to hold 50 or more needles. You will also need surgical spirit (you may find this is cheaper at your local veterinary surgery) and 2 or 4 clean micro fibre cloths. Also need a smallish flat head screwdriver and a see-through plastic bag. Spare e-clips for your tuck brushes.
First remove the carriage and then the sponge bar. Half fill your glass jar with surgical spirit and then add a couple of drops. Fit the lid and give it a shake to mix the oil and spirit. Lay out 4 micro-fibre cloths on a table, ready to dry hold the needles. Remove the lid from the jar and put on the table.
Using the flat edge of the 1 x 1 needle pusher, push the right outside 50 needles forward to holding position. Using the needle pusher to hold the first few in place, then gently brush down the needles toward you to close the latches. Then take out 2 or 3 needles at a time by pushing down on the hooks to lift the backs. Pull up them up from the back.
Put the 50 needles into your jar, hook side down. Screw on the lid and then shake like you were making a cocktail. Keep shaking for few minutes. Then take out the needles and lay them down on one of the cloths. Spread them out.
Now take out the inside right 50 needles and put them in the jar and shake, then dry on the cloth. Repeat for the left inside 50 and the left outside 50 needles. You should now have all 200 needles drying out on the cloths. The spirit should evaporate. Whilst they are drying, you can now check your machine and do a full regular clean.
Meanwhile, remove the vinyl plastic number strip and clean in soapy water and put back if at all damaged then replace with a new one.
If you have an electronic machine then run your mylar sheet reader cloth through your reader.
Clean carriage and main bed as for regular maintenance but also clean the sinker plate
Remove the sinker plate from the carriage. Remove the brushes from their spindles, one at a time, checking for straggly edges. Replace if worn. If you need to replace any cogs/brushes that are held with e-clips, remove them inside a large see-through plastic bag to stop them from flying off. These can be difficult to remove. You need to insert the screwdriver in one of the two slots on the e-clip and push. I also use a bit of tissue or cloth. Push and twist. It needs strength and finally it will fly off somewhere. If you do lose one then spares can be bought from Silverviscount for 20 -30 pence each.
Clean away any fluff that has built up around the spindles that they rotate on and then replace. Refit plate back on the carriage.
Take off the top bit of the mast and hold with the plastic cap upwards. Unscrew cap and you should see any fluff. Take tweezers and pull out any fluff.
If you have been using mohair, you need to check everywhere for fibres/fluff. I found it inside the row counter. Tweezers are necessary to pull lit out.
Check your needles and then put back into the machine. Put outside needles to the inside and the left to the right. Thus the outside right 50 needles will become the inside 50 needles etc. This will help to even out any wear and tear.
Careful put back the carriage on the main bed and check that everything is moving freely.
Clean you ribber carriage and bed. You may also want to ceck the distance between the ribber and main bed. I have not done this yet but have an old video that explains this. Your manual may also explain how to adjust your ribber bed.
Find someone who can do a service if you find any of this daunting. Check out some of these videos if you want to do it yourself.
watching a few videos should give you the courage and knowledge to clean your machine yourself. Good Luck