2. Pipe cutter lubrication.
The cutter feed screw
and the rollers need
to be oiled once a day
with spindle oil. Lack
of oil not only makes
use more difficult, but
detracts from the effi-
ciency of the machine.
3. Carbon brushes with Automatic Cut-off.
This machine employs carbon brushes with an
automatic cut-off facility. If the working life of
the brushes (approx. 250 hrs.) is exceeded, safe
operation of the machine is assured as the mo-
tor will stop automatically.
Changlng the Brushes:
1. Always change both carbon brushes at the
same time.
2. Ensure the motor is off before changing the
brushes.
3. Remove the side covers, tum the carbon
brush caps to the left using a minus screw
driver and remove the brushes.
4. Keep oil system clean as follows.
1. Drain oil and check for contamination.
2. Remove and clean scrap receiver, tank up-
per cover, oil pot and strainer, and clean the
oil tank. lf the oil system is kept clean, this will
prolong the working life of the gear-pump.
3. After cleaning the tank, put sorne sealing
substance on tbe plug to decrease any possi-
biliry of leakage.
Cutting oil system.
Be sure oil flows freely. See that there is
enough oil in the tank and all oillines are free
from obstruction.
If oil becomes discolored or contaminated,
drain the tank and refill with fresh cutting oil.
Grease
here
Pump
Scrap receivera
Oil filter
Oil line intake
suction tube
Upper tank
cover
Drain
plug
Clean oil pot after every 8 to 12 hours of actual
use. During thread cutting operations, small
chips from the threads will accumulate in the
tank so efficierit cleaning is essential once a
month to ensure proper operation of thread-
ing machine.
5. Hammer chuck structure and maintenance.
The hammer chuck jaw incorporares 4 parts
and when the teeth on the jaw inserts become
worn and fail to hold the pipe or rod during
threading, replace the entire set of jaw inserts.
Remove the hex socket set screw.
As shown in the illustration bellow, the ham-
mer chuck is fixed to main shaft by six socket
head cap screws.
Because loosening of these bolts affects
threading, be sure to keep these six bolts per-
manently tight.
6. Self-adjusting thrust ring.
Automatically absorbs rattle due to wear in
the thrust direction of the main shaft, for more
stable thread cutting.
TROUBLESHOOTING
When abnormalities occur in products, exam-
ine the following and contact your authorized
service center.
CAUTION: In the case of indications, or
problems not dealt with next instructions, do
not overhaul or repair by yourself, contact your
nearest authorized service center.
Thrust ring
Bolt
18
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