B&C Technologies IM Series Industrial Ironer - Manual (Page 65)

Table 5.6: Replacement padding dimensions
Model Width Length Replacement Wt. Factory Wt. (Break-in)
IM800x3000 130” (3.3m) 197” (5.1m) 24 oz (800g/m2) 21 oz (700g/m2)
IM800x3300 142” (3.6m) 197” (5.1m) 24 oz (800g/m2) 21 oz (700g/m2)
IM1200x3000 130” (3.3m) 295” (7.5m) 24 oz (800g/m2) 21 oz (700g/m2)
IM1200x3300 142” (3.6m) 295” (7.5m) 24 oz (800g/m2) 21 oz (700g/m2)
2. High alkalinity – this is usually from adding too much sour to get the pH down to 6.0. The
sour and alkali react in solution to form dissolved salts. This results in salt buildup in the
roll padding – clogged up padding results in ineffective moisture removal and results in
performance problems. To correct, add a rinse and reduce the sour you are dumping in.
3. Final pH too high. the final pH should be 5.5 to 6.0. This should be checked with a pH
indicator a few times a day or once a shift.
4. Over-waxing or use of powdered wax.
5.7 Guide Tape
Functionally, guide tapes help pull material from one chest to the next and to keep goods from
sticking to surfaces at transitions in the ironer. They are critical for ironer operation. It is normal to
loose or break guide tapes occasionally - they must be continually replaced. Most laundries have
maintenance people check the guide tapes (and do other maintenance) every morning before the
machine is started up and heated for the day. Excessive tape breakage can be due to:
• Roll speed differential is too large. Reduce to 0.5%. See adjustment procedure in section 5.5.
• Guide tapes coming untied – use a better knot (see section 5.7.1).
• Tapes are snagging on a transition edge, check chest and bridge alignment.
5.7.1 Securing Tapes
There is much continuing debate about how to tie guide tapes in an ironer. The preferred method
seems to be fusing - where a special tool is used to melt them together however this is not always
possible. The widely preferred knot is the square knot (aka reef knot). However modern guide
tape materials are somewhat slippery and can allow a properly composed square knot to pull out.
Refer to figure 5.15 on page 56 for instructions on tying a proper square knot as well as the more
preferred surgeons knot, which is simply a square knot with an extra turn.
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