|
DAVENPORT ENGINEERING BULLETIN 001
Part numbers 5080-2103, 5080-2103-9,
5080-2103-9-CBL, 5080-2220, 5080-2220-4
Inner Spindle
Concern: Davenport has
received complaints of the threaded keys falling out during
service.
Actions: Keys have been
redesigned and are now staked in to eliminate this from
happening.
DAVENPORT ENGINEERING BULLETIN 002
Part number 5134-1 Geneva
Motion Star Wheel
Concern: Bronze bushing
wears, as well slots in the wheel become damaged
Actions: Enhancements have
been made to both the design as well as part processing
that will extend life up to 4
times longer.
DAVENPORT ENGINEERING BULLETIN 003
Part number 5080-196
Locating Lever Eccentric Bushing
Concern: More flexibility was
needed for this part while assembling, and at the same
the need for a more accurate
installation.
Actions: This part was
redesigned to incorporate features to allow for adjustment
during setup/installation while
providing more accurate results.
DAVENPORT ENGINEERING BULLETIN 004
Part numbers 5080-2217, 5080-2217-6,
Chuck Lever Extensions
Concern: This part needed to
be physically harder and more effective during operation.
Actions: These parts are now
harder providing longer life, while providing 13% more contact with the
Outer Spindle and 27% more contact with Chuck Levers
DAVENPORT ENGINEERING BULLETIN 005
Part number SB-651-SA,
Servo Spindle Drive Shaft Assembly
Concern: Davenport has
received a complaint of a gear coupling coming loose during
operation.
Actions: The assembly has
been redesigned to move the driving gear in line with the,
SB-934 gear, on the adjacent
shaft. This permits direct drive, rather than a
power transfer thru spindle
change gears and pinion shaft. The couplings in
question were also
eliminated.
DAVENPORT ENGINEERING BULLETIN 006
Part number 328, Chuck
Slide
Concern: When bars are loaded
into the machine at half index, the chuck slide needs to
be pryed back. The fact that
this activity can take place anywhere from 3 to 20
times per shift, can greatly
reduce the life of the part.
Actions: The part has been
redesigned to incorporate a feature to allow for this activity
that extends the life of the
part significantly.
DAVENPORT ENGINEERING BULLETIN 007
Part number 5080-226-41-2,
Clutch Body
Concern: A design
modification was needed to increase the torque transmission
Capability, reduce key
shearing, and reduce cracking in the area of the keys.
Actions: Design
enhancements have allowed the clutch body to collapse on the
Outside diameter of the
mating shaft, transmitting torque through both keys,
And through friction. The
typical life increase that has been recognized is
3 – 5 times what it was
previously.
|
