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Test operation, Model identification, Contact trip – MAX HN75 User Manual

Page 9: Contact trip with anti-double fire mechanism

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Nail loading:

Place a coil of nails over the Nail Post in the Magazine. Uncoil
enough nails to reach the Feed Pawl, and place the second nail
between the teeth on the Feed Pawl. The nail heads fit in slot on
Nose.

Nail

Feed Pawl

Slot

Swing Magazine Cover closed.
Close the Door.

Check that Door Latch engages. (If it does not engage, check that
the nail heads are in the slot on the Nose).

TEST OPERATION

X

Adjust the air pressure at 170 p.s.i. (12 bar) and connect the air supply.

Y

Without touching the Trigger, depress the Contact Arm against the work-piece.

Pull the Trigger. (The tool must fire the fastener.)

Z

With the tool off the work-piece, pull the Trigger.

Then depress the Contact Arm against the work-piece.
(The tool must fire the fastener.)

[

Adjust the air pressure as much as the lowest possible according to the

diameters and length of fastener and the hardness of work-piece.

MODEL IDENTIFICATION

CONTACT TRIP
The common operating procedure on メ Contact Trip モ tools is for the operator to
contact the work to actuate the trip mechanism while keeping the Trigger pulled,
thus driving a fastener each time the work is contacted. This will allow rapid fastener
placement on many jobs, such as sheathing, decking and pallet assembly.
All pneumatic tools are subject to recoil when driving fasteners. The tool may
bounce, releasing the trip, and if unintentionally allowed to recontact the work
surface with the Trigger still actuated (finger still holding Trigger pulled) an unwanted
second fastener will be driven.

CONTACT TRIP WITH ANTI-DOUBLE FIRE MECHANISM

(US patent 5597106, UK patent 2286790)
Identified by RED TRIGGER.

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