- 3 –
ZVP-PC-0068-00-R2
the vent holes. Now tighten the two (2) screws
on the body to fix the body to the tool.
Figure b
! WARNING! – IF THE BODY OF THE
CARRIAGE BLOCKS OR OBSTRUCTS THE VENT
HOLES, IT WILL CAUSE SEVERE WEAR ON THE
FLANGE WEAR SLEEVE AND DAMAGE THE
INTERNAL SEAL AND BEARINGS.
3.5.3
Fit the smaller rear lance carriage body to the
lance pipe which should be positioned to
prevent excess bowing of the lance pipe and
angular misalignment of the coupled
connections.
3.5.4
Now fit the appropriate leg assemblies to the
front carriage body and rear lance carriage body,
adjust so that the Tornado tool and the lance
are centered within the pipe, and also check that
the wheel assemblies are in line with the
direction of travel.
NOTE: THE LARGE AND MID-RANGE
CARRIAGES TRACK BEST WHEN SET UP IN A
“Y” CONFIGURATION, ONE LEG POINTING
DOWN
.
3.6
Fitting of the pipe lance to the tool
3.6.1
Fit the NTC-1 nylon threaded pot coupling (BAC-
HC-PB-0009) to the rear entry nozzle of the
Tornado tool.
3.6.2
Fit the second NTC-1 threaded coupling to the
end of the pipe lance. Ensure that the lance has
32mm 11/4” BSP (T) threads cut on both ends.
3.6.3
Couple the lance to the Tornado tool ensuring
that the coupling safety pins are properly
connected and secure.
3.6.4
Fit the third NTC-1 threaded coupling to the
other end of the lance.
3.6.5
Now couple the blast hose to the supply end of
the pipe lance, the blast hose will require the
removal of the nozzle holder and the fitting of
an appropriate nylon blast hose coupling to suit
the blast hose. Ensure that the coupling safety
pins are properly connected and secure.
4.0
OPERATING INSTRUCTIONS
4.1
Push the Tornado tool and lance assembly to
the far end of the pipe to be abrasive blasted.
4.2
Now start the blast operation, a rich abrasive
feed is preferable to a lean abrasive feed.
4.3
Retract the lance back at a steady and even
speed; the speed of the retrieval determines the
surface finish and coverage achieved.
4.4
Continue with the blasting process until the
lance has been fully retracted, we recommend
the use of a docking pipe section to ensure the
full length of the pipe can be cleaned and the
lance safely extracted, docked and then turned
off.
5.0
MAINTENANCE INSTRUCTIONS
5.1
Flanged wear sleeve
5.1.1
Uncouple the Tornado tool and carriage
assembly from the lance.
5.1.2
Remove the Tornado tool from the carriage.
5.1.3
Remove the four (4) screws holding the rear
base assembly to the body.
5.1.4
Remove the rear base assembly from the
Tornado tool body.
5.1.5
Check the front wearing face of the flanged
wear sleeve for heavy grooving and abrasive
particles embedded in the face, change if either
is evident.
5.1.6
Check that the sleeve moves freely in and out in
the base housing recess, remove and blow out
any dust that may have built up.
5.1.7
Visually check the spring to ensure it is in
working order.
5.2
Entry nozzle
5.2.1
Follow steps 5.1.1-5.1.3
5.2.2
Untighten the rear 32mm (11/4”) lock nut and
then unscrew the entry nozzle from the base.
5.2.3
Inspect the entry nozzle for wear at the
discharge end, and change if worn to less than a
2mm (3/32”) wall thickness.
5.2.4
Check the condition of the rear sealing washer,
replace if damaged.
5.2.5
Reassemble.
5.3
Rear seal assembly
5.3.1
Follow steps 5.1.1-5.1.3
5.3.2
Remove the seal retainer.
5.3.3
The rear U seal and felt seal are located in the
seal retainer.
5.3.4
Remove both seals, it is advisable to change
both seals if either is worn.
5.3.5
Clean the outer face of the rear bearing of any
dust residue before reassembly.
5.4
Centrifugal speed limiter housing assembly
5.4.1
Using a spanner to hold the spindle tube at the
two flats located behind the rotating head,
unscrew the rotating head from the spindle tube.
5.4.2
Unscrew the four (4) retaining screws holding
the centrifugal speed limiter housing.
! WARNING! – THE CENTRIFUGAL SPEED
LIMITER HOUSING CAN BECOME VERY HOT IF
Vent
Holes
