2480 & 2481 series Hydraulic Installation Tools (HK970)
10
The following procedure is for complete disassembly.
Disassemble only subassemblies necessary to check and
replace damaged seals, wipers, back-up rings and
components. Always replace seals, wiper, O-rings and back-
up rings of disassembled subassemblies.
1. Read WARNING. Disconnect tool’s electrical connector
from the hydraulic unit; then uncouple tool’s hydraulic
hoses and drain into a container.
2. Remove tool retaining nut using 1-1/16 open-end
wrench. Slide nose assembly anvil away from tool.
Unscrew collet from tool piston.
3. Unscrew four screws from handle assembly. Remove the
screws and nuts, and separate handle halves. (Figure 6)
4. (Optional) Unscrew hydraulic hoses from tool.
NOTE: Do not remove hydraulic hoses from tool
unless replacing them.
5. Remove quick disconnects from hoses, and push
rearward on piston until remaining hydraulic fluid is
drained into container, and discard fluid.
6.
Electric Trigger Models
: Lift trigger switch assembly
from handle half. Pull control cord out of built-in handle
strain relief. Pull both bullet connectors apart. (Figure X)
Air Trigger Models
: Lift air trigger assembly from
handle half. Pull air hose out of handle’s built-in strain
relief. (Figure 10)
7.
Electric Trigger Models
: Disassemble switch and cord
assembly as instructed in Figure 7.
Air Trigger Models
: Disassemble air trigger and hose
assembly as instructed in Figure 8.
Disassembly Procedure
WARNING: Disconnect tool control trigger
system from Powerig® Hydraulic Unit before
disconnecting tool hydraulic hoses from unit. If
not disconnected in this order, severe personal
injury may occur.
Trigger
Switch Assembly
Bullet
Connectors
Left Half
of Handle
Screws (4)
Nut (4)
Cylinder
Head Assembly
Right Half
of Handle
Hose Assy (2)
Control Cord
Figure 6
TOOL FRONT - HANDLE HALVES SEPARATED
508593
Setscrew
124877
Button
124878
Trigger
Housing
124885
Switch
Assembly
Disassembly Procedure:
1. Loosen Setscrew using
5/64 hex key.
2. Remove Button.
3. Unscrew Switch from
Housing.
Figure 7
ELECTRIC TRIGGER ASSEMBLY
124887
Trigger Housing
500773
O-Ring
124888
Air Hose
113021
Quick
Disconnect
500777
O-Ring
126339
Trigger
Body
112555
Trigger
Stem
Disassembly Procedure
NOTE: When removing air hose
from either fitting, slice hose
lengthwise, at fitting, just
enough to remove easily. Then,
cut hose squarely across to be
ready for assembly.
1. Unscrewing nut from quick
disconnect body; then cut
and remove Air Hose.
2. Remove Air Hose from Air
Trigger Housing.
3. Unscrew Trigger Body from
Housing.
4. Remove O-ring from
Trigger Stem, and pull Stem
out.
5. Remove O-ring from
Housing.
Figure 8
AIR TRIGGER AND HOSE ASSEMBLY
