TM 9-3417-213-14 & P
1. Remove handwheels #111-438-001, dials #111-346-008 & end plates #111-436-005 from each end of
2. Remove retaining cap #111-436-006 from left end.
3. If machine has a table power feed, disassemble by removing the bronze gear inside the power feed, (4)
screws & R.H. end plate #B111-436-005.
4. Disconnect end brackets #111-436-003 & #11 1-436-004 by removing 4 screws.
5. The table can now be removed by sliding in either direction.
1. First remove the table, as in "B" above.
2. Remove handwheel #111-438-001 & dial #111-346-008.
3. If machine has independent saddle power feed unit, disassemble by removing the bronze gear inside the
power feed & 4 screws.
Remove plate #111-346-003 replace the handwheel & turn until lead screw is free of nut.
4. Remove lead screw nut #111-436-012 shown o drawing #101-436-101. It may be necessary to pry the
nut loose from two roll pins which position the nut.
5. The saddle can now be removed by sliding forward.
D. PROCEDURE FOR REPLACING OIL SEAL in BACK GEAR HOUSING OF ALL GEAR HEAD MODELS 823 and
1. To make this job relatively simple, it is advisable to remove the spindle motor first. This is accomplished as
follows after shutting off the power and moving the speed lever to 4200 RPM.
a. Remove the two 3/8 hex cap screws which hold the motor bracket to the pulley guard assembly (111-
b. Slide the motor forward toward the spindle as far as possible. Then by working the variable speed
belt over the edge of the bottom sheave of the motor pulley, the motor will then be free of the belt.
c. The spindle motor can then be lifted off the pulley guard.
2. Now remove the 1/2-13 hex nuts (3) which holds the back gear housing (101-180-305) to the top of the
3. Run the quill all the way to the bottom of its travel by means of the (101-212-312) hand feed lever.
4. Now lift the entire back gear housing (101-180-305) and pulley guard assembly (101-180-303) off the
spindle spline and the top of the head, and lay onto a suitable work bench with the three studs in the
(101180-305) back gear housing at the top and the mounting surface for the spindle motor on the bottom.
5. Remove the eight /h4-20 x 7/8 socket heads which hold the (101-180-305) back gear assembly to the (101-
180-303) pulley guard assembly and lift the back gear housing (101-180-305) away from the (101-180-303)
6. This exposes the (111-180-220) drive shaft which can be removed by lifting out of the back gear housing
thus exposing the top side of the (058-010-088) oil seal which can then be tapped out of the casting, being
very careful not to damage the (077-103-003) 2815 INA bearing.
7. Now put the (111-180-220) drive shaft back into the back gear housing and, being very careful, start the
new (058-010-088) oil seal back into the back gear housing with the lip of the inner race of the seal setting
properly against the OD of the (111-180-220) drive shaft.
8. Now, reassemble in reverse order.