teching DM21, Manual

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041
006
007
038 040
6>Check if the hole and
orifice of the ventilating
v a l v e ( 0 0 6 ) h a v e a n y
burrs. If any, scrape off
t h e b u r r s w i t h a k n i f e
and clean them off.
7>Check if the cylinder
( 0 0 7 ) h a s a n y b u r r s
inside. If any, make sure
to scrape off the burrs
with a knife and clean
them off.
8 > C h e c k i f t h e r e
a r e a n y b u r r s i n t h e
grooves on both sides
of the connector for the
connecting rod (041). If
any, scrape off the burrs
with a knife and clean
them off.
Motion is exceptional after assembly. First check whether
the relevant moving parts are coated with lubricating
oil as shown in the figure, and then check the assembly
sequence one by one according to the instructions; if no
problems are found, please follow the steps below to find
the problem and solve the problem.
1>Check whether the part installed in the
correct direction.
2> Check whether the screws are too tight
or too loose.
3> Check if similar parts are installed in
reverse.
4> Check if the 040 reversing link is installed
horizontally. If not, adjust it.
5 > C h e c k 0 3 8 w h e t h e r t h e a c t i v e l i n k i s
deformed or bent, if bent, please straighten.
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