Diamond Products CB215 Parts List & Operator’s Manual page 10

CAUTION: There are two small holes on the top of the gear case. If either of these holes leaks water, it indicates that the water
seals are worn out. Replace them immediately.
Use a water collector with a wet vacuum to collect cooling water if nearby objects could be damaged by water.
WARNING: Never allow water to enter the motor. A perfectly functioning water collector set up must be used for any drilling
performed at an upward angle.
Instructions for Inserting Adapters for Convertible models:
Insert fully and then twist clockwise to tighten.
3) SELECTING SPEEDS
CAUTION: Never attempt to change gears on a running machine! Only adjust when the machine is at rest.
Select the desired gear range by turning the gear selector either clockwise or
counterclockwise into the desired gear. It will usually be necessary to turn the spindle
by hand a little to get it to shift all the way.
WET DRILLING RECOMMENDED GEARS (reinforced concrete)
BitØ
Gear 14mm
Gear 3
Gear 2
Gear 1
DRY DRILLING RECOMMENDED GEARS (soft materials)
BitØ
20mm
Gear
Gear 3
Gear 2
Gear 1
Impossible /
Not recommended
24mm 35mm 92mm
32mm 56mm
Possible
132mm 162mm
132mm 162mm
Ideal
10
Gear Selector
202mm