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Leica RM2125 Troubleshooting Guide
Problem
1. Thick and thin sections
a) Partial sections
b) Shorter sections in ribbon
c) Section thickness varies from one section to another
d) Skipping sections
e) Varied thickness in one individual section
Cause(s) / Corrective Action
I) The clearance angle is too small.
a) Systematically try several clearance angle adjustments until the optimum angle is found. For the RM2100 series use 2.5 degrees (Disposable).
II) Insufficient specimen clamping.
– Orientation head
– Cassette clamp
b)
Check if all the levers are locked and the screws are tightened on the specimen. Retighten the levers and screws, if necessary.
c) If the clamp lever can be tightened at more than a 60 degree turn, adjustment is needed.
d) Schedule a service call for the adjustment of the specimen head clamp lever.
e) Check 4 screws that hold the orientation head to the advance arm.
f) On the cassette clamp, check the 4 screws that hold the cassette clamp to the orientation head.
g) Check for movement of the cassette while in the holder. If movement exists, it may be caused by: weak/broken springs, wax buildup, or lack of grease
A service call is required to replace spring and properly grease. If there is wax build up, instruct customer to clean with a sparing amount of Xylene.
III) Locking levers are not well lubricated or cleaned, which causes them to be not completely fastened or stuck in a non-locked position.
h) Remove all locking levers, clean off all paraffin and debris, then apply a sparing amount of the provided Leica lubricant.
Lubricate only with recommended KuBer Topas Grease, which can be ordered through Leica. Part Number: 14033624744
IV) Leaf spring is worn.
i) Replace leaf spring. Part number: 14050229557
j) If the new leaf spring does not solve the problem, then replace the locking lever. A service call is required for this.
V) Dull knife/blade.
k)
Use a different part of the cutting edge or use a new knife/blade.
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