20
244 series Pneudraulic Installation Tools (HK989) Alcoa Fastening Systems & Rings
Always check out the simplest possible cause of
a malfunction rst. For example, an air hose not
connected. Then proceed logically, eliminating each
possible cause until the cause is located. Where
possible, substitute known good parts for suspected bad
parts. Use TROUBLESHOOTING CHART as an aid in
locating and correcting malfunction.
Note:
Piston Drift is when the air piston is in the down position,
but the hydraulic pull piston is not in the full forward
position. This causes an out of sequence condition.
1 Tool fails to operate when trigger is depressed.
a) Air line not connected
b) Throttle Valve O-rings worn or damaged.
c) Throttle valve Cable Assembly is broken.
2 Tool does not complete fastener installation and
break pintail.
a) Air pressure too low
b) Air Piston Quad-Ring worn or damaged.
c) Reservoir empty or low, refer to Fill and Bleed
section.
d) Air in hydraulic system, refer to Fill and Bleed
section.
e) Reservoir Springs worn or damaged
f) Check for piston drift
3 Pintail stripped and/or swaged collar not ejected.
a) Check for broken or worn jaws in nose assembly
b) Check for loose Retaining Nut
c) Check for piston drift.
4 Tool has piston drift.
a) Loose collet crashing into the front of the anvil,
this causes the relief valve to open allowing the
piston to drift. Tighten the collet and refer to Fill
and Bleed section.
b) Worn or damaged Return Pressure Relief Valve
in tool, inspect Seat Assembly, O-ring,
Back-up Rings, Steel Ball and Valve Spring.
Replace if necessary.
c) Worn or damaged Piston Assembly; Inspect
O-rings and Back-up Rings, and replace if
necessary.
5 Hydraulic uid exhausts with air or leaks at base
of handle.
a) Worn or damaged Gland Assembly; Inspect
Polyseal, O-rings, and Quad-Ring, and replace if
necessary.
6. Hydraulic uid leaks at rear of Pull Piston
a) Worn or damaged Rear Gland; inspect
Polyseal and O-ring, and replace if necessary.
7. Hydraulic uid leaks at front of Pull Piston
a) Worn or damaged Front Gland; Inspect
Polyseal, O-ring , and Back-up Ring, and replace
if necessary.
8. Pull Piston (18) will not return
a) Throttle Valve stuck; Lubricate O-rings.
b) Throttle Arm, Cable Assembly or Trigger binding.
9. Air leaks at air Cylinder Head
a). Worn or damaged O-ring. Replace if
necessary.
244X TOOL
Fill and Bleed Bottle (Fig.8) - 120337
Seat Removal Tool - 126136
Fill Tool Assy for reservoir (Fig.8) - 112465
Stall Nut (Fig.8) - 124090
Retaining Nut (for“Jiffy”stylenoses) - 125412
Piston Assy Tool Kit Includes: - 123110-11
Piston Assembly Tool (Fig. 2) - 123111-2
Spacer (Fig. 2) - 123112-2
Service Tool Kit Includes: - 120352-244
Fill and Bleed Bottle (Fig.8) - 120337
Fill Tool for reservoir (Fig.8) - 112465
Stall Nut (Fig.8) - 124090
Pintail Collection Bag - 125655
Pintail Tube (for -05 fastener) - 100534-1
Air Cylinder Boot - 129458
244OSX TOOL
Fill and Bleed Bottle (Fig.8) - 120337
Seat Removal Tool - 126136
Fill Tool Assy for reservoir (Fig.8) - 112465-1
Main Piston Assembly Tool Kit - 123110-10
Includes:
Piston Assembly Tool (Fig. 2) - 123111-8
Spacer (Fig. 2) - 123112-8
Service Tool Kit Includes: - 120352-244OS
Fill and Bleed Bottle (Fig.8) - 120337
Fill Tool Assy (Fig.8) - 112465
Air Cylinder Boot - 129458
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