8
DT4600 Pneudraulic Installation Tool (HK1174)
1. Remove the Ring Bumper (Figure 7) from the tool.
2. Flip tool upside down and hold handle in a soft-jaw
vice.
3. Using a ¾” wrench, remove the Bottom End Cap
(Figure 7).
4. Remove the Bleed Screw and Washer from the tool
head (Figure 6), and drain the fluid into a container.
Grip the air piston flats with pliers and remove from
tool.
5. Hold the piston rod and use snap-ring pliers to
remove the retaining ring. Push the Piston Gland
Assembly (Figure 8) out of the Air Piston.
6. Repeat step 2. Remove the Retaining Nut (Figure 7)
with a 1 ¼” socket. Pull the Air Cylinder Assembly off.
7. Using a dull pick, remove the Retaining Rings (Figure
8) and push out the Return Gland Assembly and the
Pull Gland Assembly.
8. Remove the remainder of the tool from the vice and
pull the Handle Assembly off.
9. Using a punch and hammer, push the Slotted Pin
(Figure 7) out and remove the Trigger.
10. Remove the Trigger Valve Assembly with a ½” socket.
(Figure 7)
If the Seals need to be replaced, remove the
Trigger Button, replace the Seals with a dull pick, and
replace the Trigger Button.
11. (Figure 8) To remove Valve Assembly, hold one side
with a ¾” wrench and remove the Valve Cap with ¼”
T-handle wrench. Use a small, dull drift from the side
with the ¾” hex to push out the Spool with O-rings.
12. Hold the remainder of the tool in a soft-jaw-vice.
Remove the Nose Adapter (Figure 7) with 13/16”
wrench.
13. Remove the Vacuum Shut-off with a ½” wrench.
14. Remove the Hydraulic End Cap Assembly with a
11/16” wrench.
15. Remove the Connecting Tube with a 13/16” wrench.
16. Using a dull drift and a hammer, tap the Hydraulic
Piston Assembly out of the tool.
Disassembly Procedure
Assembly Procedure
1.
While holding Hydraulic Cylinder in a soft jaw vice,
apply Loctite® 243™ per manufacturers’ instructions to
threads of Connecting Tube and screw into Cylinder.
2.
Make sure Front Gland Assembly is in place, and
apply Loctite 243 to threads of Nose Adapter per
manufacturers’ instructions, screw into tool and torque
to 50 ft-lbs.
3. Thread 121694-DT4600 Seal Insertion tool into the
back of the Hydraulic Cylinder. Thread 123111-2 Piston
Assembly tool onto Hydraulic Piston. Apply Lubriplate®
or equivalent to Piston seals, front rod, and rear rod and
insert into tool sure taking care not to shear seals or
back-up rings. Push the pull piston all the way forward.
4.
Apply Loctite 243 to threads of Hydraulic End Cap per
manufacturers’ instructions, thread into tool, and torque
to 50-60 ft-lbs.
5.
Slide Handle Assembly over Connecting Tube while
making sure the O-ring is in place.
6.
Apply Lubriplate to seals of Return Gland Assembly and
Pull Gland Assembly. Minding orientation, push gland
assemblies into Air Cylinder Assembly and install.
7.
Apply Lubriplate to Tube (part of Handle Assembly)
and adjacent bore. Slide the Air Cylinder Assembly into
place.
8.
Apply Never-seez® to threads of Connecting Tube,
thread into Retaining Nut, and torque to 15 ft-bs.
9.
Apply Lubriplate to the Piston Gland Assembly and,
noting correct orientation, push into the Piston; then
install the Retaining Ring.
10.
Apply Lubriplate to the Piston Rod and O-ring; then
push all of the way up into the Air Cylinder Assembly.
11.
Thread Bottom End Cap into place and torque to 10-15
ft-lbs. Install Ring Bumper.
12.
Install Trigger Valve Assembly with a ½” socket.
13.
Place Trigger into position and tap Slotted Pin in with
a drift and hammer until it is flush with one side of the
Trigger.
14.
Apply Lubriplate to Spool and O-rings and push into
Valve Cage, small-end-first. Apply Lubriplate to the seals
of the Throttle Valve Assembly and push into Handle
from the back. Apply Loctite 243 to Valve Cap and
torque to 195 in-lb MAX.
