13
2024 series Pneudraulic Installation Tool (HK1077)
Fill and Bleed
This section documents the “bleed-&-fill” procedure.
For
component identification, see
Figures 9–11.
reqUIreD eqUIPMenT
• DEXRON
®
III or equivalent ATF (See
Specifications
for
more information.)
• Shop air-line with 90 psi (
6.2 bar
) max.
•
Air regulator
• Fill Bottle Assy (P/N
120337
, supplied with tool)
• Large flat-blade screwdriver
• Stall Nut (P/N
124090
or
125340
, optional)
•
Nose assembly
• Fasteners (optional)
PrePArATIOn
• Install air regulator in the air-line and set the pressure
to 20–40 psi (
1.4–2.8 bar
).
• Add an approved hydraulic fluid to the fill point of the
fill bottle.
To bleed and fill the tool:
1.
Lay the tool on its side with the fill port facing up
and remove bleed plug from the fill port.
2.
Connect the tool to shop
air-line. If fluid is present,
hold the tool over a suitable container with fill port
facing into container. Cycle the tool several times to
drain old fluid, air, and foam. (Figure 10)
3.
Screw the fill bottle into the fill port. (Figure 11)
4.
Stand the tool upright on a bench. Trigger the tool
slowly (20–30 cycles), and bend the fill bottle at a
right-angle (
90
°) to the tool. (Figure 11) Air bubbles
will accumulate at top of the bottle.
5.
When air bubbles stop accumulating at top of the
bottle, stop cycling the tool. When the trigger is
released, the pull piston returns to the idle position
(full-forward).
6. Disconnect the tool from the air-line. Lay the tool
on its side and remove the fill bottle. Top off the
fluid in the fill port, and install and tighten the bleed
plug.
7. Connect the air-line to the tool and measure the
stroke as described in
Measuring Tool Stroke
.
If the stroke is less than the length specified in
Specifications
, remove the bleed plug and add fluid.
Re-insert the bleed plug and re-measure the stroke.
8.
Increase the air pressure to the the maximum listed
in
Specifications
. Install two fasteners to check
the function and installation in a single stroke, or
cycle the tool with a stall nut fully threaded onto
the piston to load up the tool. Measure the stroke
again. If necessary, remove the plug and add fluid.
Re-insert the plug, and cycle and measure again.
Repeat this process until the stroke meets the
recommended minimal length.
WArnInG: Avoid contact with hydraulic
fluid. Hydraulic fluid must be disposed of
in accordance with local regulations. See
MSDS for hydraulic fluid shipped with tool.
120336
Fill Bottle
Fill Point
120004
Cap
120337 Fill Bottle Assy
Figure 9
WArnInG: Air pressure must be set at
20–40 psi (
1.4–2.8 bar
) to prevent possible
injury from high-pressure spray.
If bleed plug (55) is removed, the fill bottle
must be in place before cycling the tool.
CONTAINER
(Discard fluid)
Figure 10
CAUTIOn
: All fluid must be purged from
the tool before refilling. The tool stroke will
be diminished if the fluid is aerated.
For optimal performance, refill with a fluid
that is recommended in
Specifications
.
Figure 11
