Hardinge SUPER-PRECISION HC - Page 20

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Figur e 57 - Spanner Nut for Kno c kout Piston
Figur e 58 - Knockout Pi s to n Sh a ft R em ov al
,,
C
K
0
I -
/
\ ~~( \ "'
C :.i:, ,
'
'-
- 'L N M
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Fig ur e 59 - Pis ton Ring s a nd Seals for Kno c kout Pist on
MOUNTING BRACKET AND
CHASING BAR ASSEMBLY
'1
The mounting brack et a nd chasing bar asse mbly
" B", Figure 67, is housed as a unit and is properly
sealed to exc lude dirt and foreign matt er. The s up e r-
hon ed chasing bar ride s on 144 se l ected, properly
greas ed, ba ll s in two be a ring r aces.
18
•
Fi gure 60 - Seal and Locat i ng Pin for Knockout Piston
Fi gur e 61 - Spring for Roller Clamp Pis ton
F ig ur e 62 - Spanner Nut for Roller Clamp Piston
All ad ju s tm ents, inc luding s pring tension a re fac-
tory set in thi s prov en trouble fr ee unit.
If the ch as ing bar appear s to be hanging up,
mounting nut s "C" are probably unevenly or over
tight en ed ca us ing distort a tion in the mounting
bracket.
Sho uld this asse mbly ever require se rvic e, re turn
threading unit to f ac tory. Unit s hould be properly
gr ease d to pr eve nt rust.