Care and maintenance
/h
Observe
the instructions
in the section
entitled
"Safety".
/!\
After using the device 50
times or at least once a
year:
.
Disassemble the
pump
l2l
Fig
12) and
grease
the diaphragm
1161.
(Fig.
12)
.
Grease the O-ring
1151. Fig.
13)
Faults
A
Observe the legal requirements of
your
country for accident
prevention
and check
the water supply device at
regular intervals.
lf there are
no
special
rules, we recommend
you
have the device examined exter-
nally by Hilti's Customer Service
Department every
2
years
and subject it to
an
internal inspection every 5
years.
Use only
Hilti spare and accessory
parts.
Fault Gause
Remedy
No
pressure
builds
up in
the
water
supply device
The
pump
is
not
screwed on
tightly.
Screw the
pump
on tightly
O-ring
[15]on
the
pump
is
faulty.
Have the device repaired by
Hilti's Customer Service De-
oartment
Diaphragm
[16]
is defective.
Have the device repaired by
Hilti's
Customer Service
De-
oartment
Liquid flows
out
of the
pump.
Valve disc dirty or defective.
Clean the valve disc or
have
it
repaired by Hilti's Customer
Service Deoartment.
Safety
valves
blow off
too
early.
Safety valve
[5]
is defective
Have the device repaired by
Hilti's Customer Service De-
oartment
Pressure
gauge
is not
indicating any tank
pres-
sure.
Pressure
gauge
[1
0] defective
Have
the device
repaired
by
Hilti's Customer Service
De-
partment
11
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