15
2012 series Pneudraulic Installation Tool (HK969)
The fluid level may drop slightly. If so, repeat these steps
until the fluid level does not drop when the tool is cycled.
NOTE: This usually requires 3 or 4 repetitions.
When the tool stroke is as recommended:
a. Increase the air pressure according to the tool
specification.
b. Install two fasteners to check function and
installation in a single stroke (or cycle the tool with
the stall nut fully threaded onto the piston
to load
up the tool).
c. Re-measure the stroke.
Repeat this process as necessary until the tool stroke is
at the minimum requirement length.
BLEED PROCEDURE FOR PARTIALLY FILLED TOOL
IN FIELD USE
1. Disconnect
the tool from the
air supply.
Lay tool on
its side with
fill port facing up
.
2. Remove the bleed plug from the fill port, and
position fill port over suitable container. (Figure 4a)
3.
Connect the tool to the air supply and cycle it several
times to
drain fluid, air, and foam.
4. Screw the fill bottle into the fill port.
5.
Connect the tool to the air supply, with the pressure
set at 20–40 psi (
1.4–2.8 bar
).
6. Stand tool upright. Hold the fill bottle
at a right
angle
(90
°
)
to the tool, and cycle the tool 20–30
times; watch for air bubbles escaping into the bottle.
(Figure 4b)
7.
When air bubbles stop accumulating in the fill bottle,
stop cycling the tool.
When the trigger is released,
the
pull piston returns to
the
idle (full forward)
position. Disconnect
the tool from the
air supply.
8. Lay the tool on its side, and remove the fill bottle.
Carefully add fluid to “top off” the fluid in the
fill port. Insert and tighten the bleed plug with a
screwdriver.
9.
Connect the tool to the air supply to check the
tool stroke.
NOTE: There are two procedures for
measuring tool stroke: with and without a stall
nut. See
Measuring Tool Stroke
.
If the tool stroke is less than the recommended minimum
length, remove the bleed plug and add fluid. Then
re-insert the bleed plug and re-check the stroke.
The
fluid level may drop slightly. If so, repeat these steps
until the fluid level does not drop when the tool is
cycled.
NOTE
:
This usually requires 3 or 4 repetitions.
When the tool stroke is as recommended:
a. Increase the air pressure according to the tool
specification.
b. Install two fasteners to check function and
installation in a single stroke (or cycle the tool with
the stall nut fully threaded onto the piston).
c. Re-measure the stroke.
Repeat steps 1–9 as necessary until the tool stroke is at
the recommended minimum length.
WARNINGS:
Air pressure must be at 20–40 psi (1.4–2.8
bar) to prevent possible injury from high-
pressure spray.
Never cycle the tool without:
B
leed plug tightened in the fill port
Fill bottle securely attached to the tool, or
Fill port is held over a container. (Figure 4a)
When not properly contained, any fluid in the
tool will spray out. Severe injury may result.
Fill and Bleed
(continued)
