Alcoa 244 - Page 14

14
244/244OS Series Tooling Alcoa Fastening Systems
Step 5
Install fill bottle in head fill port (check Valve hole) (See
Fig. 8).
Step 6
Connect tool to shop air 20 to 40 psi. Cycle tool 20-30
times, watch for air bubbles escaping from the tool into
bottle. (You may rock the tool to free trapped air in the
tool.) Do not allow the air to re-enter the tool. When
cycling tool, always hold bottle up as shown in Figure 8
to prevent drawing in air from empty part of bottle.
Step 7
When air bubbles no longer appear in bottle, remove fill
bottle while tool is lying on its side.
Step 8
Install the check valve Ball (75), Check Valve Guide (76)
and Spring (77). Replace the Plug (78).
Step 9
Turn tool so front of head faces you and remove the
relief valve Plug (85). Prior to removing Plug (85), it is
advisable to back out setscrew inside of plug by
approximately 1/2 turn counterclockwise. (See Figure
8a). This ensures that the Piston will remain in full-
forward position. Install relief valve Ball (81), Guide (82),
Sleeve (83) and Spring (84). Replace the Plug (85).
Step 10
244 Model
(Fig. 8)
Unlock Fill Tool and check Reservoir red line. At this
point cycle the tool the with Stall Nut attached and
retaining nut locked in the full forward position (“Dead
Stall”). Reservoir should not drop below the red line on
the reservoir housing.
244OS Model
(Fig. 8)
Unlock Fill Tool and check Reservoir red line. At this
point cycle the tool with the Stop still holding the piston
in the full forward position (“Dead Stall”). Reservoir
should not drop below the red line on the reservoir
housing.
Step 11
Re-lock the fill tool. Lay tool on its left side and remove
Plug (40). Top off reservoir by placing a few drops of oil
in hole and waiting for air bubbles to escape. Push a pin
or a scribe into hole to check for trapped air bubbles.
Replace plug.
Step 12
Unlock the fill tool and cycle tool as in step 10.
Reservoir may drop slightly. If so, repeat step 11 until
when you touch the fill tool handle, it has no pressure
against it and it drops out of the lock position, and the
plunger does not drop when tool is cycled. NOTE: This
usually requires 3 to 4 times topping off.
Step 13
244 Model
(Fig. 8)
Remove fill tool and stall nut. Install a nose assembly
and pull several fasteners to test function.
244OS Model (Fig. 8)
Remove fill tool. Adjust the tools stroke for the Nose
Assembly being used by threading out Piston Stop (89).
Refer to Measuring Tool Stroke section for the stroke
adjustment procedure.
!
WARNING - Failure to re-lock the fill tool will
result in oil being ejected from the head under
pressure during the topping off of the
reservoir. Severe personal injury may result.
WARNING: Air pressure MUST be set to 20
to 40 psi to prevent possible injury from
high pressure spray. If plug (78) is
removed, fill bottle must be in place before
cycling tool.
!
SECTION A-A
from figures 9 & 10
Using a 3/32 Allen
wrench, loosen
setscrew inside Plug by
approx. 1/2 turn.
FIG. 8a
F
F
ILL
ILL
AND
AND
B
B
LEED
LEED
(continued)