Safety and operating instructions
44
© Construction Tools PC AB | 3390 5211 01 | 2020-09-18
Original Instructions
n
Tighten the nuts with the right tightening torques (see
chapter
Screw connections / Tightening torques
).
n
Fit the compaction plate pads.
n
Fit a new lock washer and a washer onto each screw.
n
Insert the screws through the rubber buffer and com-
paction plate pad holes.
n
Secure the screws with the nuts.
n
Tighten the nuts with the right tightening torques (see
chapter
Screw connections / Tightening torques
).
n
Reconnect the hydraulic hoses between the motor
and the valve block to the hydraulic motor.
9.3 Replacing rotor and/or O-
rings of covers
You do not have to remove the outer housing and the
rubber isolators to replace the rotor and/or the O-rings.
To offer a better a view, the following illustrations show
the hydraulic compactor with its outer housing and rub-
ber isolators removed.
These illustrations, which serve as an example, show
the HC 850, but the basic procedure also applies to all
other types.
n
Remove the screws securing the covers to the rotor
housing.
n
Lift away both covers and deposit them on a clean
and level work surface.
n
Feed two fitting steel bars through the upper holes in
the covers.
NOTICE
Part falling
The rotor is not secured to the bearing cover. When
pulled out of the unit, it may slip out of the bearing and
fall down. The falling rotor may lead to injury and dam-
age.
u
Make sure that the rotor cannot fall.
n
Remove the bearing cover with the rotor from the mo-
tor side by pulling.
n
Remove the bearing cover from the other side by
pulling.
n
Lift the bearing covers from the steel bars.
n
Deposit the bearing covers on a clean and level work
surface.
n
Pull the rotor out of the bearing cover.
n
Replace the defective rotor.
n
Insert the rotor in the bearing cover on the motor
side.
n
Check the O-rings for damage.
n
Replace defective O-rings.
n
Push the bearing covers against the rotor housing us-
ing the steel bars.
n
Remove the steel bars.
