Cincinnati 1a lo - Page 18

CINCINNATI NO. 1 TOOLMASTER MILLING MACHINE
3. Remove spring wire rings (217B) and set
screws (215, 218B) from gears. Drill a hole
through expansion plug (22IB) and pull it from
housing.
Insert a 1/2" by 1-1/2" brass rod into pinion
shaft opening of housing and tap transmission
shaft (214B) out front of housing.
To Remove Speed Change Assembly:
Style 1-D.
(See Page 54.)
1. Proceed as per instructions under "To Re
move V-Belt Housing: Style 1-D, page 13."
2. Pry motor pulley open and wedge with small
blocks of wood to release pressure on belt.
Remove belt (72B). Remove wooden blocks
and allow pulley halves to close.
3. Remove lockscrew (52B) and loosen set screw
(51B). Remove handle (41B) and dial (44B).
Remove three screws (47B) from sleeve
(46B). Turn gear shaft (48B) counter-clock
wise until it is clear of nut (12B). Gear shaft
and sleeve assembly can then be removed
from housing. [Gear (37B) may be removed,
if necessary, by removing lockscrew (20B)
and loosening set screw (28B). This releases
the pressure on gear pin (38B) and permits
removal of pin and gear. ] Remove lockscrew
(8) and loosen set screw (10B) until it is clear
of recess in shaft pin (9B).
Remove four screws (55B) and work drum
switch (59B) out of housing carefully. Do not
break or damage wires attached to drum
switch. With drum switch out of its recess,
tap shaft pin (9B) out back of casting until it
is clear of yoke (17B). Lift pin and yoke out
of casting.
4. Remove five screws (IB) and cover (14B).
[Keep drawbar bolt (6B) in place on underside
of cover or plunger (2B) and spring (3B) may
fall out and be lost. ]
To Remove and Dismantle Powerfeed
Housing: Styles 1-D, 1-E.
(See Pages 60 and 62.)
1. Attach rope sling through side openings in
motor housing (58B, page 54, 1-D machine;
or 107B, page 56, 1-E machine). Remove
three screws (188B, page 58) and raise motor
housing base until it is clear of spindle hous
ing. [It is not necessary to break electrical
connections to motor if the housing remains
suspended on crane or is lowered onto ma
chine table.] Remove plug (262B, page 60)
and screws (263B, 264B) located near top of
housing and midway between screws (258B).
.17
Remove bevel gear (234B) assembly; this as
sembly includes parts (221B, 231B through
234B, 245B and 246B).
Remove plug (272B) and drain oil from gear
box. Remove two screws (283B) and two
screws (258B). Move housing (247B) straight
out from side of spindle housing. Place
powerfeed housing on work bench for dismant
ling.
Remove plug (262B) and screws (263B, 264B)
that hold sleeve (217B) in place. Through
opening in back of powerfeed housing place
screwdriver against recess in face of bevel
gear (226B) and tap complete shaft (220B) as
sembly to left (as viewing explode) out of
housing. [Do not remove shaft (220B) as
sembly by tapping against front end of shaft.
This action would dislodge Truarc rings (219B,
224B, 240B) and result in bearing damage.]
Remove roll pins (301B, 303B, page 62) and
pull shaft (315B), with handwheel and dial in
place, out of housing. Remove gears (300B,
305B, 307B) as they drop free of shaft.
Remove four screws (317B) and cover (326B).
Remove spring (298B, page 60). Remove roll
pin (277B) from shifting arm. Remove dog
point set screw (290B) and tap 1/8" roll pin
[not shown] out of shifting shaft detent (289B).
Remove pin (281B) and lever (293B). Tap
shifting shaft (296B) at lever end and move
shaft through clutch shifting fork (297B) until
key (295B) can be removed. Then tap shaft
in the opposite direction and remove from
control side of housing.
Remove three screws (260B) and remove gear
shift knob assembly. This assembly includes
the following parts: (255B, 256B, 259B through
261B, 265B through 270B, 279B and 280B).
Remove roll pin (308B, page 62) from gear
(306B) and remove gear from end of shaft
(343B). Remove screw (321B) and loosen
screw (320B) that holds sleeve (339B) in hous
ing. Tap sleeve (339B), ring (340B) and plug
(341B) out of housing. [Place screwdriver on
inner face of sleeve and tap carefully. ] Tap
shaft (343B) from above and remove shaft,
gear (337B), snap ring (338B), bushing (348B)
and reversing clutch (336B) through access in
bottom of housing. Remove plug (333B),
screw (332B) and loosen screw (331B). Re
move four screws (309B) and rear cover
(310B). Tap shaft (325B) to left until it is
clear of bevel gear (342B) and remove bevel
gear. Then, tap shaft (325B) to right to re
move shaft and bevel gear (324B) from hous
ing. Gears (329B, 330B) may be lifted out of
housing after they fall clear of shaft. To
Publication No. M-2109