Stanley CD12 User Manual page 12

3. While holding the feed handle, pull the carriage lock
knob out to release the carriage from the mast.
4. Feed the drill to the work face and begin drilling.
Start slowly to allow the drill bit to create a full seat
in the hole.
5. When drilling is finished, return the carriage to the
top of the mast and lock the carriage in place.
6. Turn off the core drill.
7. Turn off the water.
8. Turn off the hydraulic system.
9. Remove the drill bit. It may be necessary to use
wrenches to loosen and remove the drill bit.
10. Loosen and back out the drill mount locking screw.
Remove the core drill and dovetail block from the
carriage.
11. Release the vacuum or remove the anchor screw to
move the drill stand.
ADJUSTING THE GUIDE BUSHINGS
1. Loosen the pinch screws that lock the bushing caps.
Tighten or loosen the bushing caps as necessary
to remove play between the carriage and the mast.
2. Tighten the pinch screws to lock the bushing caps.
To replace the guide bushings:
1. Remove the top carry handle and stop plate.
2. Pull the carriage lock knob to release the carriage.
Pull the carriage up and off the mast.
3. Remove the guide bushings from the carriage.
4. Loosen the pinch screws that lock the bushing caps
and back out the bushing caps.
5. Install the new guide bushings.
6. Place the carriage on the mast while making sure
the guide bushings align with the grooves in the
mast.
7. Slide the carriage onto the mast until the carriage
lock knob engages the mast.
8. Tighten the bushing caps to remove all carriage play.
Tighten the pinch screws to lock the bushing caps.
Replace the stop plate and the top carry handle
COLD WEATHER OPERATION
Before using CD12 in cold weather, preheat the hydraulic
fluid with the hydraulic power supply set at a low speed.
The oil should be at, or above, 50 °F (10 °C) with a
12 ► CD12 User Manual
OPERATION
viscosity of 400 SSU (82 cs), before operating the tool.
Damage to the hydraulic system or drill can result from
use with fluid that is too viscous or too thick.
STORAGE
Replace any damaged or missing safety decals, labels
and tags before storing the tool. Otherwise, the tool might
be improperly used by someone who is not familiar with
the safety requirements.
Drain all water from the core drill.
Store the tool in a clean, dry and safe place.
MAINTENANCE
Good maintenance practice keeps the core drill on the
job and increases its service life.
The most important maintenance practice is to keep
the hydraulic fluid clean at all times. Contaminated fluid
causes rapid wear and/or failure of internal parts.
Follow the recommendations contained in "HTMA /
EHTMA REQUIREMENTS" on page 9, to ensure
peak performance from the tool.
Do not disassemble the tool until you know whether the
problem is in the hydraulic power supply, the gearbox
module, or the power and control (rear) module. Then
only disassemble the tool as necessary to repair as
required. KEEP CONTAMINANTS SUCH AS DIRT
AND GRIT AWAY FROM INTERNAL PARTS AT ALL
TIMES.
Always determine and correct the cause of the problem
prior to reassembly. Further wear and tool failure can
result if the original cause is not corrected.