Idiomas disponibles
Idiomas disponibles
OPERATING INSTRUCTIONS
1.- Assemble handle front section to larger sec-
tion using pin provided.
2.- When this jack leaves the factory for ship-
ment, the vent plug on top of the oil chamber is
closed to prevent the oil from being spilled. Also
the oil chamber contains the right amount of oil
before shipment: Before using for the first time,
remove cover plate, unscrew vent plug util there
is 1/16" gap if oil spill is evident, or if vent plug
was found open, it is necessary to check oil level
before pumping.
3.- With release valve open, pump handle about
6 full strokes to assure complete distribution of
oil.
4.- Close release valve, and jack is ready to use.
5.- Always center the load on saddle of jack. Off
- center loads and loads lifted while jack is not
stting level may damage the jack.
GENERAL CARE OF YOUR JACK
1.- When jack is not in use lifting arm and pump
lever should be in full down position. This will
protect precision machined surfaces of the ram
and the piston, from corrosion.
2.- Container is filled with 2 fl.oz.of hydraulic
jack oil.
3.- Keep your jack clean and well lubricated, as
well as the outside moving parts such as the lif-
ting arm spindle, wheel bearings and cross head
pin.
HOW TO LOCATE AND REMEDY
TROUBLE
1.- IF JACK WILL NOT RAISE OR LIFT LOAD
a)
Before attempting to locate the specific
trouble, inspect oil level in the following man-
ner place jack on level position.
Open release valve correct oil level is at botton
of thread inside oil chamber when lifting arm is
at full down position.
If lacking oil remove vent plug located under co-
ver plate. Fill with oil to correct level and install
and tighten the plug.
Close release valve and pull lifting arm up to
its full height. Then open release valve and by
stepping on saddle force it to lower as rapidly
as possible. Repeat this operation three or four
times. This procedure will thoroughly flush the
valves and assure complete distribution of oil.
It most cases it will restore the jack to proper
working order. Close release valve tightly. Try
jack under load.
E N G L I S H •
b) The jack may have air trapped in the system:
Open release valve. Pump handle 6 full strokes.
Close release valve and try jack again.
c)
O - ring seal for pump may be worn: This
will happen only after months of sevice. a new
O- ring seal or a complete new piston can be
purchased and easily installed.
d)
Release valve may be held open by dirt on
seat. Flush by pulling lifting arm up and down
several times while release valve may be remo-
ved for cleaning the valve and valve seat.
2.- IF JACK LEWERS UNDER LOAD
a)
The discharge valve may be held open by
dirt on ball seat: When a dirty discharge valve or
ball seat exists, the jack may lower quickly cau-
sing handle to fly back with force. This is caused
by the oil rushing back into the pump chamber
through the open ball seat. When this happens
it is advisable to repeat procedure (1-a) before
going throung the partial disassembly of the hy-
draulic unit. The discharge valve is located at he
bottom of ram cylinder there is a screen washer.
This must be removed carefully and if damaged
a new one must be fitted. Now remove the dis-
charge valve ball and clean valve seat. Wipe ball
and replace and reseat. Use 1/4" diameter x 3"
long tap with a small hammer. This will with a
small hammer. Place the punch on top of ball
and give the puch a light have the effect of re-
seating the ball on its seat.
Install the screen washer. Screw in ram cylinder
tightly. Replace washers top and botton of oil
chamber, install ram assembly and screw in top
nut.
b)
Cup seal for the ram may be worn: This is
likely only in jacks that have given very heavy
service. Follow above procedure (2-a) until ac-
cess to ram assembly is made. Remove worn seal
by pulling away or cutting with a small knife.
Take caution not to damage the new ram seal
when installing.
c)
Dirt in the release valve will cause jack to
lower under load. Remove release valve, clean
valve seat replace valve.
3.-
IF JACK WILL NOT LOWER COMPLETELY
WHEN RAISED
a) Return spring for lifting arm may be broken
or unhooked replace return spring.
b) It probably needs lubrication. Clean and oil
all moving parts in the lifting arm mechanism.
c) Hydraulic unit may contain too much oil and
vent valve may be closed. Open vent plug.
4.- If Jack Will Not Lift Full 1.5 tons Capacity.
CHECK THE FOLLOWING:
U s er 's M an u al
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