9
2022 and ERT9 series Pneudraulic Installation Tools (HK1021)
Disassembly
GEnERAl
This procedure is for complete disassembly of the
tool. Disassemble only those components necessary
to replace damaged O-rings, Quad-rings, Back-
up rings, and worn or damaged components. For
component identification, see Figures 1, 2, & 14.
1. Disconnect the tool from the air source.
2. Unscrew the retaining nut (2022 models only)
and remove the nose assembly. (Follow the
instructions on the
Nose Assembly Data Sheet
.)
3. Unscrew the bleed plug from top of the handle/
head. Turn over the tool and drain the fluid into
a container. (The tool can be cycled to clear
more completely.) Discard the fluid. (Figure 1)
4. Models 2022 & 2022l
: Pull the pintail deflector
off the end cap.
Models 2022V, 2022lV, & ERT9V: See
Pintail
Bottle/Vacuum System Disassembly
.
5. Remove the throttle arm pivot screw and lift out
the throttle arm. Disconnect the ball end of the
cable assembly from it. Remove the spring from
the throttle valve. (Figure 14)
6. Secure the tool upside-down in a soft-jaw vise;
use a 1/8” hex key to remove three button-head
screws from the muffler end cap. Remove the
muffler end cap and bottom exhaust gasket, and
remove the muffler from the end cap. (Figure 2)
7. Tap down the cylinder head with a soft mallet
(to take pressure off the ring), and remove the
retaining ring.
8. Screw the button-head screws into cylinder
head; (Figure 2) carefully pry on screws to
remove head.
9. Pull on lock nut with vise-grips to remove the air
piston from cylinder. Remove the piston
Quad-
ring.
nOTE:
Do NOT disassemble
the air piston and
rod assembly
. If the locknut loosens, apply
Loctite
®
271-05 and tighten to 25–30 ft.-lbs.
10. Remove the bumper from the gland assembly.
Unscrew the gland assembly with a 1-3/8” socket
wrench and extension.
11. Remove the retaining ring from the gland, and
then pull out the spacer and Polyseal. Remove
the O-rings,
Quad-ring
, and Back-up ring. lift
the cylinder assembly from the handle/head.
(Figure 2)
12.
Turn over the tool and drain the fluid into a
container; discard the fluid. Remove the throttle
valve from the air cylinder, and remove the
O-rings. (Figure 2)
Figure 1
CONTAINER
(Discard Fluid)
111795
Retaining Nut
104293
Bleed
Plug Assembly
Remove the Bleed Plug Assembly,
turn the tool on its side, and
drain the hydraulic fluid.
504127
Button
Head Screw (4)
128792
Bottom Plate
507445
Retaining
Ring
126941-1
Gasket
115554-1
Muffler
O-ring
Timing Pin
125747
Cylinder Head
126221
Handle
Assembly
500871
Cylinder
Head O-ring
130729
Piston
505420
Locknut
116408
Bumper
125753
Piston
Rod
125150
End Cap
124210
Pintail
Deflector
500903
O-ring
125733 Cylinder
Assy.
(Figure 14)
(Figure 14)
125742 Gland
Assy.
Figure 2
WARnInG: Disconnect the air hose from the
tool before performing any maintenance.
Serious personal injury could result if the air
hose is connected.
CAUTIOn: Always use a soft-jaw vise to
avoid damaging the tool.
CAUTIOn: Take care to not scratch the
piston rod or cylinder when removing.
