2480 & 2481 series Hydraulic Installation Tools (HK970)
12
Clean out O-ring grooves and reinstall perishable parts (seals,
etc.) using service kit
2480KIT
.
NOTE: The small inner ring
insert of polyseals must remain positioned as shown. If it
is forced out of seal body, it may be pinched against
gland inner edge. A damaged seal will permit leakage.
1. Thinly coat Parker SUPER O-LUBE, or equivalent, on seals
and mating surfaces.
Note the orientation of all O-rings,
back-up rings, wipers, and polyseals of piston, front
gland, and rear gland, and install them accordingly.
(Figure 10)
2. Thread piston assembly tool onto piston. Lubricate all
mating surfaces. Press evenly against gland cap to slide
front gland assembly over piston assembly tool and into
piston. Slide wiper onto piston as shown. Install unloading
valve into piston.
NOTE: The long flats of the unloading
valve must be oriented toward the rear of the tool.
3. Thread piston insertion tool into cylinder. Lightly coat
internal surfaces of tool and cylinder with lubricant.
4. Lightly coat cylinder, piston O-rings, and front gland O-
rings with lubricant. While supporting tool in a soft vise,
press assembled piston and components into cylinder.
Remove piston assembly tool.
5. Lightly coat cylinder and rear gland O-rings with lubricant.
Hold cylinder upright on a bench or in a vice fitted with
soft jaws. Install rear gland assembly using suitable spacer,
plate, and soft mallet.
6. Press wiper into groove of end cap. Thread end cap into
cylinder and tighten. Install deflector.
7. Assemble hoses to cylinder head assembly. Use Slictite®
TEFLON® thread compound, or equivalent, on pipe
threads. See Caution above. Hose with male connector
must be on PULL (front) side of cylinder.
8. Assemble switch assembly for Electric or Air Trigger.
9. Assemble handle assembly to tool.
ASSEMBLING HANDLE TO TOOL
1.
Electric Trigger Models
:
a. Screw switch into housing.
b. Slide button onto switch.
c. Tighten setscrew using 5/64 hex key.
Air Trigger Models
:
NOTE: To ease assembly, heat ends of hose before pushing
onto fittings. When using a new disconnect, remove and
discard plastic ferrule from nut before attaching air hose.
a. Push O-ring over threads of air trigger body.
b. Push stem through body. Stretch O-ring over stem and
into groove.
c. Screw trigger into housing.
d. Screw hose fitting into housing. Push hose onto fitting.
e. Slide nut over hose. Push hose onto quick disconnect.
Tighten nut.
2. Position assembled cylinder and hoses in left handle half.
Align right handle half with left (locators help
align halves).
3. Insert locknuts and screws into handle. Tighten screws.
Assembly Procedure
CAUTION: Do not use TEFLON
®
tape on pipe
threads. Pipe threads may cause tape to shred
resulting in tool malfunction.
Piston Insertion Tool
Piston
Front Gland Assembly
Note orientation of all seals!
Rear Gland Assembly
Note orientation of all seals!
Unloading
Valve
Vise
Cylinder Head
Piston Assembly Tool
Figure 10
GLANDS, PISTON, AND VALVE ASSEMBLY
