OPERATIONS MANUAL
TUNPIPEB13/250
13 TONNE HYDRAULIC PIPE BENDER
6
TROUBLE
CAUSES
SOLUTIONS
Oil leak appears at the
top side of the pushing
stem
The seal ring at the top side of the pushing stem
has been damaged
Replace the O ring 14 x 2.4 (not supplied)
Insufficient oil suction
from the large and small
pumps
Lack of oil or grit has gathered in the oil filter
Dismantle the oil draining valve and clean it. Fill the
tank with oil
The assembling hole of
the mould is cracked
One side of the mould has a greater load force
while being pushed out.
Check if the positions of the two supporting rollers are
the same. Put some oil on the surfaces of supporting
rollers and the pipe to be bent.
Abnormal rest of the
pump stem
The ball at the outlet valve cannot release
Extend the piston( No. 7). When force has been applied
to the piston pump, strike the handle seat with a
hammer several times, the steel ball will be reset.
