9
DT4600 Pneudraulic Installation Tool (HK1174)
Fill and Bleed
This section documents the “bleed-&-fill” procedure.
For
component identification, see Figures 9, 10, & 11
.
REQUIRED EQUIPMENT:
Automatic Transmission Fluid (ATF) DEXRON III or
equivalent (Refer to
S
pecificationS
for more information.)
Shop air-line with 90 psi
(
6.2 bar
) max.
Air regulator
Fill Bottle Assembly (P/N
120337, supplied with tool)
Large flat-blade screwdriver
Stall Nut (P/N 124090)
Nose assembly
Fasteners (optional)
Torque wrench (60 in/lbs
required)
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 FILL AND BLEED THE TOOL:
1. Lay the tool on its side with the fill port facing up, and
remove the 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.
4. Stand the tool upright on a bench. Trigger the tool
slowly (20–30 cycles), and bend the fill bottle at a
right-angle to the tool. (Figure 11)
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.
7. Lay the tool on its side and remove the fill bottle. Top
off the fluid in the fill port; then install and tighten the
bleed plug. Torque the bleed plug to 60 in/lbs.
8. Connect the air-line to the tool and measure the
stroke. If the stroke is less than specified, remove the
bleed plug and add fluid. Re-insert the bleed plug and
recheck the stroke.
9. Increase the air pressure to 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. Remove the plug and
add fluid. Re-insert the plug and cycle and measure
again. Repeat this process until the stroke meets the
minimum requirements.
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.
120337 Fill
Bottle Assembly
Fill Point
120336
Fill Bottle
120004 Cap
Figure 3
WARNING: Air pressure must be set at 20–40
psi (1.4–2.8 bar) to prevent possible injury
from high-pressure spray.
If the bleed plug is removed, the Fill Bottle
must be in place before cycling the tool.
CONTAINER
(Discard Fluid)
Figure 4
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
S
pecificationS
.
Figure 5
