♦
Open the shut-off valves of the lines
»Open
hydraulic demolition cutter«
(Connection
»A«
)
and
»Close hydraulic demolition cutter«
(Connection
»B«
) at the boom.
♦
Lift the hydraulic demolition cutter using the carrier.
♦
Turn the hydraulic demolition cutter 180°.
♦
Place the hydraulic demolition cutter horizontal on
the ground.
♦
Work through all the steps as previously described
in this chapter and observe the safety instructions.
Checking and correcting the
blade clearance
♦
Secure the carrier to prevent any unexpected
movements prior to measuring or correcting the
blade clearance.
Checking the blade clearance
♦
Open the cutter jaws completely.
WARNING Parts of the body or whole bodies
may be sheared or crushed
Cutter jaws may close unexpectedly and shear or
crush parts of the body or whole bodies.
►
Ensure that there is nobody between the cutter
jaws.
♦
Perform work while outside the open cutter jaws,
not between them.
♦
Close the cutter jaws until the first pair of cutter
blades overlaps.
♦
Secure the carrier to prevent any unexpected
movements.
♦
Measure the blade clearance with a feeler gauge
(leaf gauge).
♦
The blade clearance must be corrected if it is
greater than 2 mm.
♦
Close the cutter jaws further until the second pair
of blades overlaps.
♦
Secure the carrier to prevent any unexpected
movements.
♦
Measure the blade clearance with a feeler gauge
(leaf gauge).
♦
The blade clearance must be corrected if it is
greater than 2 mm.
Correcting the blade clearance
Shims are required to correct the blade clearance.
These are not included in the hydraulic demolition
cutter scope of delivery. They must be purchased
separately. The order number can be seen in the list
of spare parts.
WARNING Metal fragments expelled at high
velocity
The cutter blades are made of hardened steel. If the
cutter blade pairs come in contact with each other
when the cutter jaws close, fragments may be
expelled as projectiles and cause serious injuries
and damage property.
►
Wear safety glasses when making adjustments to
the blade clearance.
►
Only shim the blade pairs so there is minimum
blade clearance when the cutter jaws close.
♦
Always underlay overlapping pairs of blades with
shims evenly. The blade protrusion
»d1«
at the
cutter jaw (single) and (double) must be the same.
A
A
A-A
d
1
♦
Open the cutter jaws completely.
WARNING Parts of the body or whole bodies
may be sheared or crushed
Cutter jaws may close unexpectedly and shear or
crush parts of the body or whole bodies.
►
Ensure that there is nobody between the cutter
jaws.
♦
Perform work while outside the open cutter jaws,
not between them.
♦
Disconnect the hydraulic supply to the hydraulic
demolition cutter by shutting the shut-off valves of
the lines
»Open hydraulic demolition cutter«
(Connection
»A«
) and
»Close hydraulic
demolition cutter«
(Connection
»B«
) at the boom.
♦
Secure the carrier such that it cannot move
unexpectedly.
♦
Loosen the Allen screws (D) with an Allen key.
♦
Unscrew the Allen screws (D) a few turns.
© 2015 Construction Tools GmbH | No. 3390 5141 01 | 2015-11-16
Original instructions
50
CC 1700 U, 1700 S
MAINTENANCE
