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CDM1H CORE DRILL — OPERATION AND PARTS MANUAL — REV. #6 (09/08/10) — PAGE 15
Applying Power to the Core Drill
1. This core drill requires 115 VAC, 60 Hz power. Applying
power to the drill that is not specified will cause severe
damage to the core drill. Always read serial plate tag
before applying power to the core drill.
2. The power plug on this core drill is a 3-prong grounded
type plug. ALWAYS connect this plug to a 3-prong
grounded receptacle. NEVER plug this device into a 2-
prong type receptacle. This will defeat the ground circuit.
The use of a 3-prong to 2-prong adapter is strictly
prohibited.
3. Connect the core drill's AC power cord to a 115 VAC wall
receptacle (Figure 7) that is protected by a 20 amp
circuit breaker. For best results connect the power cord
to a GFCI receptacle.
To avoid accidental starting, ALWAYS
keep fingers away from the power OFF/
ON switch when applying power.
Warning - Accidental Starting
CDM1H HAND-HELD CORE DRILL — PRE-SETUP
Figure 9. Connecting the Power
POWER
CORD
(POWER ON)
WET
HANDS
During operation of this core drill, there
exists the possibility of
electrocution,
electrical shock or burn,
which can cause
severe bodily harm
or even
DEATH!
To avoid these hazards:
NEVER use damaged or worn cables when plugging the
core drill into an AC power receptacle.
NEVER grab or touch a live power
cord with wet hands.
NEVER stand in water and touch a
live power cord.
DANGER - ELECTROCUTION HAZARDS
Table 4. Cable Selection (60 Hz, Single Phase Operation)
Current in
Amperes
Load In
Watts
Maximum Allowable Cable Length
At 120
Volts
#10 Wire #12 Wire #14 Wire #16 Wire
2.5 300 1000 ft. 600 ft.375 ft. 250 ft.
5 600 500 ft.300 ft. 200 ft. 125 ft.
7.5 900 350 ft. 200 ft. 125 ft. 100 ft.
10 1200 250 ft. 150 ft. 100 ft.
15 1800 150 ft. 100 ft. 65 ft.
20 2400 125 ft. 75 ft. 50 ft.
CAUTION: Equipment damage can result from low v
oltage.