Heiniger XTRA Sheep Mode D'emploi page 25

Sheep Shearing Head
MALFUNCTION
Cutter does not move across its
whole running surface
Cutter does not move
Tension nut slackens off by
itself
Sufficient pressure cannot be
applied to the cutter
Pressure yokes fall out
Poor cutting
Instruction manual XTRA
CAUSE
Tension link broken
Crank spindle and/or crank
roller and/or swiveling fork
worn out
Bearings badly worn
Faulty cogwheel, Z30 black
(Illustration 1, Item 8)
Faulty reduction gear in the
motor section
Crank spindle broken or bent
Crank roller missing
Tension lock spring missing
(Illustration 1, Item 4)
Loose lid bush
Tension link is broken
Sliding sleeve missing
(Illustration 1, Item 6)
Sliding sleeve is worn down
(Illustration 1, Item 6)
Swiveling fork is worn down
on top
Pressure yokes are worn down
(Illustration 1, Item 2)
Securing lugs on tension link
spring
Comb and cutter blades are
blunt
Shearing blade tension too
low
Blades were not properly
sharpened
RECTIFICATION
Have tension link replaced
Have crank spindle and/or
crank roller and/or swiveling
fork replaced
Have bearings replaced
Replace cogwheel
Have reduction gear replaced
Have crank spindle replaced
Have crank roller replaced
Replace tension lock spring
and fit it so that the tension nut
turns easily to tighten but drag
in off direction
Use 'Loctite' or similar
adhesive product to glue lid
bush
Have tension spring replaced
Replace sliding sleeve
Replace sliding sleeve
Have swiveling fork replaced
Have pressure yokes replaced
Have tension link spring
replaced
Have resharpened with
approx. 20 µm negative
crown
Increase pressure by tightening
the tension nut
(Illustration 3, Item 1)
Have resharpened with
approx. 20 µm negative
crown
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