Hardinge SUPER-PRECISION HC - Page 13

16. Remove lock screw "R", Figure 39. Remove
slide stop pin " S" . Use one screw "N", Figure 25, to
pull slide stop pin as shown , Figure 40.
17 . Remove tool slide "T", Figure 41 .
18. Remove three screws " U" , Figure 42. Remove
cam " V" , Figure 43, and camshaft "W".
L'
Figure 33 - Nut for Dial Sl ee ve
CHASING HEAD ASSEMBLY
1. Replace cam shaft " W ", Figur e 43. Line up
keyway with key and replac e cam " V" . Replace three
screws "U", Figure 42.
2. Lubric a te matching dov eta ils on s lid es with M-
88 Molylube a nd repla ce tool slide 'T' , Fi gur e 41. If
necessary for assembly loo se n gib sc rews a nd read -
ju st tool slide gib per in s truct io ns under " Tool Po st
Slide Gib Adjustm e nt" , on Page 14.
3. Replac e slide stop pin " S ", Figur e 39, and
replace lock screw " R''. NOTE : Pos i tion tool slide by
viewing throu gh hole to properly lo ca te s lid e s top pin
wi th ca m.
4. CAREFULLY coil ra tch et spring "P", Fig ure 37,
by hand , and replace spring with needle no se pliers ,
pl ac ing outside e nd over pin "Q" .
5. Re pla ce ra tch et "O", Figur e 36. U se small rod
in hole , Figure 36, to lin e up inside e nd of ra tchet
spring with hole in backside of ratchet.
6. R ep l ace ret aini ng ring "N", Figure 35, and
re plac e key "M " .
7. Repl ace dial s le e ve "K", Figur e 34. Turn dial
sl eeve and ratchet " O ", Figur e 35, thr ee full turns to
the right. Hold ratchet a nd turn stop screw in hol e
"L" in until it prevents ra tchet spring from un -
winding .
8. Replace spring "J", Figure 34, spring retainer
"H" a nd nut "G". Tight en nut "G" by turning until
cont ac t is made with stop screw in hole " L ", Figur e
35.
11
Figure 34 - Di al Sleeve and Components
Figure 35 - Ratchet a nd Stop Screw
Figure 36 - Ratchet Re mov al
9. Re pla ce spacer "E", Figur e 32 , and re plac e
spring " D ". Coat with M- 88 Molylub e a nd replace
pawl post "A".