Imperial Tools 1003 Capillary Tube Cleaner - Manual (Page 2)

THERMAL ENGINEERING COMPANY
A Division of Airserco Manufacturing Company LLC
7555 Tyler Boulevard; Mentor, OH 44060 800-473-1754 Fax: 440 946-8188
www.thermalengineeringcompany.com
TO REMOVE RESTRICTIONS -With CAP-CHECK connected as above pump at a rate which
will build up a pressure of not more than 4000 PSI. If this pressure does not remove the
restriction drop the pressure by opening the by-pass valve then close the valve and start pumping
again. When the pressure reaches about 1500 PSI, close the trigger valve gauge shutoff by
holding the trigger down while continuing to pump. As soon as the pressure stops rising on the
gauge indicating it is shut off, pumping can be continued as fast and to as high a pressure as
needed. When the restriction is removed the pressure will drop and as soon as it gets below the
pressure held in the gauge the gauge will start to drop. The trigger valve will open automatically
when the pressure drops so if pumping is started again the valve will be open and the gauge will
again indicate pressure. As long as pressure is held on the valve piston in the closed position the
valve cannot be opened and the trigger will have no effect on it. The Extended Base, which can
be purchased as an additional accessory, makes pumping the higher pressures which can be
reached with the gauge shutoff much easier.
Use of a CAP-CHECK CHASER KIT will insure that the cap tube is really clean and fully open.
It is especially valuable for larger cap tubes which are partially restricted since the rate of flow
required for such cap tubes is beyond the capacity of any hand operated hydraulic pump. In using
the CHASER KIT a piece of lead alloy wire about 3/8” long and a few thousandths of an inch
smaller than the ID of the cap tube is pushed through by hydraulic pressure. If a restriction stops
the wire, high velocity oil will flow between the wire and the cap tube wall and be directed
against the restriction washing it away. The wire will then move on until it falls harmlessly into
the evaporator where it will remain.
TO USE CAP-CHECK AS A HYDRAULIC POWER UNIT -To operate hydraulic cylinders
connect the power side of the cylinder to the outlet and the return side of the cylinder to the filler
opening of the CAP-CHECK. Since the volumetric capacity of the pump is low fill the cylinder
with oil before connecting the CAP-CHECK to it. For high pressure testing fill the article to be
tested with oil before connecting the CAP-CHECK.
Pump until the desired pressure is reached. BE SURE THE ARTICLE YOU ARE TESTING
WILL STAND THE PRESSURE YOU INTEND TO APPLY.
MAINTENANCE- Do not bend the hydraulic hose to a radius of less than 3 in. To do so will
kink it and cause it to fail.
The pump nut (1034) should only be finger tight. Over-tightening may cause the unit to leak
around the piston or may bind the piston and prevent the unit from pumping.
Dip neoprene adapter sealer in oil when replacing to prevent binding.
The valve assembly is made up of 3 balls which cover 3 different sized ports. The smallest ball
closes the port from the reservoir to the pump, the middle ball closes the port from the pump to
the outlet and the large ball closes the by-pass port from the outlet to the reservoir. If pump will
not raise any pres- sure the small ball is not sealing. If pressure can be raised but pump handle
raises from the bottom of the stroke by itself, middle ball is not holding and if pressure can be