12
255 Blankdraulic Installation Tool (HK1014)
Fill and Bleed
This section documents the “bleed-&-fill” procedure.
For
component identification, see
Figures 6, 7, & 8.
REQUIRED EQUIPMENT
- DEXRON
®
III or equivalent ATF (See
Specifications
for more information.)
- Shop air-line with 90–100 psi (
6.2–6.9 bar
) max.
- Air regulator
- Fill Bottle (P/N
120337
, included with tool)
- Large flat-blade screwdriver
- Nose assembly or optional stall nut (P/N
120824
)
- 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.
NOTE
:
Refill the tool
only when the
fluid
level drops below the
red line on the reservoir
housing; or when the tool is rebuilt.
TO BLEED AND FILL THE TOOL:
1. Screw the Fill Tool (P/N
112465
) into the reservoir
plunger. Pull the plunger into the reservoir housing
and lock the fill tool in the full-forward position
by tilting the handle (long side touching tool) and
locking it in place. (Figure 7)
2. Remove the relief valve plug and check valve plug
(Figure 7), as well as all guides, springs, and balls,
from the ports in the head. Re-insert the relief valve
plug in the front of the tool. (Figures 7 & 8)
3. Screw the retaining nut onto the head assembly,
and screw the stall nut onto the hydraulic piston.
Tighten to ensure full thread engagement. Back off
retaining nut until it engages stall nut. Verify that
the hydraulic piston is full forward and locked with
the retaining nut (and, optionally, with the stall nut).
NOTE
:
If the stall nut is not used, the piston must
be pushed to the full-forward position before
installing the valves.
4. Connect tool to the air source to seat air piston at
bottom of air cylinder; then disconnect. Lay tool on
its side with fill port facing up (check valve on side).
5. (Figures 7 & 8) Insert the fill bottle in the check
valve hole.
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.
Figure 6
CAUTION
: Purge ALL fluid from the tool
before refilling with a recommended fluid;
aerated fluid will diminish tool stroke.
112465 Fill Tool
120824 Stall Nut
117824 Retaining Nut
Red Line
Indicator
100309
Bleed Plug
505863 Spring
114530 Relief Valve Plug
502506 Relief Valve Ball
120128 Relief Valve Guide
120127 Sleeve
502929 Check Valve Ball
111067 Check Valve Guide
111068 Check Valve Plug
100874 Spring
129758
Handle
Figure 7
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 plug is removed, the fill bottle must
be in place before cycling the tool.
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