Cincinnati 1a lo - Page 20

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
justing housing (227B). Remove four screws
(233B) and tap motor driven shaft (224B) and
sleeve housing (227B) assembly out of spindle
housing.
After assembly, the gear (214B) is correctly
aligned and meshed by grinding the spacer
(207B) to correct thickness.
3. Remove spindle bearing cap (203B), split type
spindle locknut (205B) from top of spindle and
spindle cap (220B) from bottom of spindle
housing.
Gently tap spindle down out of housing to pre
vent damage to thrust bearing (219B). It is
not necessary to remove spindle housing be
fore removing spindle.
To Remove Single Swivel Housing Spindle
and Drive —With Hand Feed: Style 1-C
(See Pages 48 and 50.)
This spindle housing is the same one used without
hand feed but is rotated 180° before mounting on
overarm. (See "Ref. " at bottom of page 50.)
1. Proceed as per paragraphs 1 and 2 directly
above under "To Remove Single Swivel Hous
ing. "When assembling, grind spacer (16 IB,
page 48) to set spiral drive gear (153B) to
gear on motor driven shaft (224B, page 50).
2. Remove two screws (17IB) and draw bolt
cover (191B). Remove bearing nut (193B) and
locknut (174B) and remove quill (169B) from
spindle. Loosen set screw (154B) and tap to
free brass plug (155B) under it. Unscrew
quill adjusting cap (199B) from top of spindle
housing and remove with dial (198B) and quill,
adjusting screw (184B).
3. Remove spindle bearing cap (165B) and split
type locknut (163B) from bottom of spindle
(167B). Turn spindle housing 180° and gently
tap spindle (167B) down out of housing to pre
vent damage to thrust bearing (149B).
To Remove and Dismantle Double Swivel
Housing: Style 1-C
(See Page 52.)
1. Remove spindle housing (160B, page 48 or
213B, page 50) from double swivel housing
(260B, page 52). Remove end cap (266B),
shoe-type locknut (265B) and tap spiral bevel
pinion (240B) gently out of housing. If pinion
is driven too hard, the thrust bearing (243B)
might be damaged.
= 19-
2. Remove four nuts (258B) and pull swivel head
out of overarm. Remove index head gear
(247B). Remove set screw (261B) and pull
eccentric (262B) from housing. Remove set
screw (250B), loosen set screw (25IB) and
pull motor driven shaft (254B) and bearing
sleeve (256B) assembly out of overarm.
Remove shoe-type locknut (244B) and gently
tap shaft out of sleeve to prevent damaging
thrust bearing (255B).
3. When assembling, gear (240B) and gear on
motor shaft (254B) are aligned by grinding
spacer (242B) to suit and moving bearing
sleeve (256B) with eccentric (262B). Sight
gears through opening left by removal of ex
pansion plug (249B). When spindle housing
(160B or 213B) is attached to swivel housing,
it may be necessary to readjust all gears to
obtain proper running mesh.
When inserting spindle housing in swivel
housing or the latter into overarm, turn hous
ing 90° to one side before slipping it home.
Thus, if a slight loop of the O-ring gasket
should be squeezed down and cut by edge of
opening, the damaged portion will be above
lubrication level.
To Remove Table
(See Page 68.)
1. Unscrew split type locknut (38B) from right
end of leadscrew (2 IB) and remove handwheel
with dial. Remove key (22B), four cap screws
(24B) and tap right-hand apron (23B) from
table.
2. Move table to right so left apron is near sad
dle. Remove four cap screws (18B) from
left apron and tap apron to free it from table.
Remove precision measuring equipment from
table, if so equipped.
3. Fasten a U-clamp to center of table and at
tach to a crane with a slight tension. Remove
gib (12B), loosen saddle clamping lever (114B,
page 70) and slide table (11B) toward right
and off saddle.
If table is equipped with powerfeed, it is first
necessary to remove gear housing bracket
(144B, page 72) and then proceed as above.
It is extremely difficult to replace an apron
onto leadscrew without damaging the oil seal.
It is better to first remove seal, install apron
and then replace seal. Make a roll of thin
shim stock, slip inside seal, put shim roll on
end of screw, slide seal into place in apron
and remove shim roll.
Publication No. M-2109