Retsch PM 200 - Manual (Page 36)

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Retsch GmbH
36
General points
Cleaning
Do not clean the PM100/200 with flowing water.
Mortal danger from electric shock
Only use a cloth dampened with water.
Solvents are not permitted.
Maintenance
1 2 3 4 5
The following service work should be performed from time to
time, although at the latest once per month, in order to
guarantee the operational reliability of your PM100/200:
 Check roller 1 of the locking trannion for easy running
and oil, if necessary, e.g. with sewing machine oil
 Clean magnets 2 on the locking trannion
 Check threaded spindle 3 and locking sleeve 4 for easy
running. A drop of oil helps in most cases.
The easy running of the threaded spindle and the locking
sleeve is essential for secure clamping of the grinding bowl
Locking sleeves which do not move downwards solely by spring
power cannot properly prevent the threaded spindle from
working loose. The grinding bowls could be hurled out.
The easy running of roller 1 on the locking trannion is essential
for secure closing of the housing cover of the PM100/200.
 The thickness D1 of the three spider feet should be
checked for wear from time to time, although at the
latest every month.
It may not be less than 7.5 mm for the PM100.
It may not be less than 5.5 mm for the PM200.
 The heights H1 of the latching brackets should be
checked for wear from time to time, although at the
latest every month.
They may not be less than 17mm.
 Check rubber washer 5 in the pressure piece for wear
and ensure that it is securely in place (sticking). At
temperatures up to 120°C use temperature-resistant
rapidly-acting adhesive DELO 2256.
If the values D1 and H1 are undershot, operational safety is no
longer assured.
The grinding bowls could be hurled out.