Hilti DD-250 E Manual De Funcionamiento página 15

7.10 Mounting the motor unit on the carriage
2 4
1
7.12 Fitting a core bit
5
1
4
2
3
7.14 Inserting a sealing disc in the water collector
3
2
1
6 4 5
7.16 Connecting the water supply
1
2
3
4
5
6
Printed: 07.07.2013 | Doc-Nr: PUB / 5069602 / 000 / 00
1. Motor unit
2. Motor unit mount
3. Carriage
4. Mounting surface
5. Eccentric clamping pin
6. Wrench
3
5
Caution: Do not pinch the supply
cord!
6
During disassembly, hold the motor
unit when pulling out the eccentric
clamping pin.
1. Chuck
2. Connection end
3. Core bit
4. Locking sleeve
5. Motor unit
1. Water collector
2. Sealing disc (select correct
diameter)
3. Clamping ring
4. Hose connection
5. Sealing ring
6. Water removal hose
A water removal system and a sealing
disc in new condition must always be
used for overhead drilling.
Sealing discs of the correct diameter
are available from your local Hilti
centre or representative.
1. Carriage
2. Hose strain-relief clamp
3. Water hose
4. Water valve
5. Hose connector
6. External water supply
Water supply pressure must not
exceed 10 bar.
7.11 Fitting the handwheel
1
3
2
4
7.13 Removing a core bit
1
3
2
7.15 Fitting the water collector
1 2
3 4
1. Carriage
2. Connection
3. Handwheel
4. Clamping screw
The handwheel can be fitted on either
side.
1. Chuck
2. Core bit
3. Locking sleeve
Hold the core bit before disengaging
the locking sleeve.
When the core bit is released, ensure
that the core does not accidentally fall
out of the bit.
When drilling overhead, close the
water supply valve and drain the core
bit via the water supply hose before
releasing it from the chuck
(see section 3.4).
1. Baseplate
2. Water collector holder
3. Water collector
4. Pressure screws
Tighten the pressure screws evenly.
Use of the water collector is manda-
tory for overhead drilling and is also
recommended for all other drilling
positions.
15