4
SERVICE INSTRUCTIONS
DISASSEMBLY - GENERAL - ALL MODELS
Insert a hex wrench into the drill chuck and tighten the chuck
securely. Use a suitable hammer to strike the hex wrench
sharply in a counterclockwise direction when facing the
chuck. Remove the drill chuck from the spindle. Unscrew
and remove the gear case. The motor unit may now be
removed from the front of the handle. See the following
paragraphs for complete disassembly instructions on the
various subassemblies.
GEAR TRAIN DISASSEMBLY
Unscrew (left hand threads) the spindle bearing retainer
202031. The spindle may now be pressed out of the spindle
bearings.
If replacement of the idler gear pins is necessary, the old pins
should be pressed out the rear and the replacement pins
pressed in as shown in the following diagrams.
DOUBLE REDUCTION MODEL
.360
(9.14mm)
.375
(9.53mm)
Front
Rear
.240
(6.10mm)
.255
(6.48mm)
Front
Rear
OPERATION
The 111B and 136 Series drills and screwdrivers are de-
signed to operate on 90 psig air pressure. The 111B should
be connected to a 1/4" hose and the 136 to a 5/16" hose.
All drills and screwdrivers are started by pulling the trigger,
and stopped by releasing the trigger.
LUBRICATION
An automatic in-line filter-lubricator is recommended as it
increases tool life and keeps the tool in sustained operation.
The in-line lubricator should be regularly checked and
filled with a good grade of 10W machine oil. Proper
adjustment of the in-line lubricator is performed by placing
a sheet of paper next to the exhaust ports and holding the
throttle open approximately 30 seconds. The lubricator is
properly set when a light stain of oil collects on the paper.
Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for
an extended period of time (overnight, weekend, etc.), it
should receive a generous amount of lubrication at that
time and again when returned to service. The tool should
be stored in a clean and dry environment.
FOR YOUR SAFETY AND THE SAFETY OF OTHERS READ AND UNDERSTAND THE
SAFETY RECOMMENDATIONS ON PAGES 2 thru 4 BEFORE OPERATING A DRILL.
OPERATING INSTRUCTIONS
.240
(6.10mm)
.255
(6.48mm)
Front
Rear
SINGLE REDUCTION MODELS
QUICK-CHANGE CHUCK DISASSEMBLY
Remove retainer ring 833688. This will release the washer
864249, spring 202842, release sleeve 202833, and ball
844265. Remove retainer ring 619524. This releases the
remainder of the clutch.
