TM 9-4910-638-14&P
OPERATION PROCEDURE
CYLINDER BLOCK PREPARATION
Remove all studs.
Clean carbon and oil from top of block.
File top of block to remove burrs.
Make all cylinders for largest worn diameter.
INSTALLING ANCHOR BOLT
Select the proper length clamp, anchor bolt and centering screws -
See page 6.
Adjust anchor bolt head down against anchor gage - See figures 1, 2 and 4.
CENTERING AND CLAMPING
Wipe machine base clean.
Place machine in position over anchor bolt and remove anchor gage.
Select proper centering fingers and insert in head - See page 7.
Move feed control lever to neutral position.
Lower sleeve to desired position for centering - using handwheel.
Tighten centering handwheel, at extreme top of bar, until fingers are tight against the cylinder wall
Swing base of machine on block to center on anchor bolt.
Clamp machine to block by using hex head screw on side of base.
Use wrench furnished - a longer wrench will clamp too tight.
Loosen centering handwheel. Disengage handwheel. Start motor and move
Feed control lever to UP position - thus raising bar out of cylinder.
ROUGH BORE
Set micrometer to rough bore size desired - See page 14.
Set tool holder spring plunger - See page 14.
Insert R tool holder in head.
Set tool with micrometer and lock in place - See page 14.
Remove micrometer.
Lower sleeve manually until tool is slightly above top of block.
Disengage handwheel.
Set stop rod according to bore length.
Move feed control lever to DOWN position. Set feed plunger and motor Shift lever. Engage speed control lever
according to speed desired. speed and feed table - page 4.
Lap finishing F tool while machine rough bores - See page 12.
When machine stops at bottom of cylinder, be sure handwheel is disengaged.
Raise feed control lever thus returning the sleeve to original position.
FINISH BORE
Remove roughing tool and install finishing F tool. Set micrometer to desired finished size and proceed as before.
When bore is completed, turn the knurled handwheel at top of the drive shaft so that index mark the nut below the
centering handwheel is to the front of the machine. This prevents tool bit marking cylinder. Disengage handwheel.
Move feed control lever to retract sleeve. Unclamp machine - move to next hole and proceed in same manner.
CAUTION
Always clean out micrometer hole with brush before inserting micrometer.
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