409- 10039

“Micro” Pneumatic Tooling Assembly 1490567- 1

Rev C

6

of 15

Tyco Electronics Corporation

Figure 3 shows a typical tool holder assembly and its associated crimping head being attached to the power

unit. Each tool holder assembly has a unique cam that attaches directly to the piston rod of the power unit.

Once the cam is attached to the piston rod and secured by means of a setscrew, the associated tool holder

assembly is placed over the cam onto the front of the power unit. The locking collar is then threaded onto the

threads on the base of the tool holder assembly, securing the tool holder to the power unit. The associated

crimping head or adapter is then attached to the tool holder assembly. When properly assembled, the power

unit head, with cam and tool holder assembly, should be free to swivel in either direction. This swivel feature

permits the crimping head or adapter to move freely when the operator positions the terminal or splice and wire

into the crimping head or adapter.

2.2. Hand Actuated System (Non- Logic)

Air pressure must be removed from the unit while head or tool holder is detached.

The hand actuated system (shown in Figure 4) has a hand switch assembly mounted on the rear of the power

unit. The hand switch assembly contains a manually operated four--way valve with one input port (connects to

main air supply) and two output ports that mate with the input ports of the power unit. The hand switch

assembly, therefore, controls the application of air to either extend or retract the pistons of the power unit.

When the switch lever is pressed inward toward the cylinder body of the power unit, extension occurs. When

released, the spring--loaded switch lever returns to its normal position, causing retraction. As previously

described, any of the tool holder assemblies (with associated crimping head or adapter) can be attached to the

power unit, as shown in Figure 3.

Figure 3

Power Unit Head

Rotates Freely in

Either Direction

Typical Tool

Holder Assembly

and Cam

Typical

Crimping Head

DANGER