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I n s t a l l i n g t h e H 7 0 3 a n d H 7 4 3 A P u l l i n g H e a d s
1. Connect the tool to the air supply. Without depressing the
trigger, place spring (9) over tube (10 or 3) as shown, and
insert as far as possible into head piston.
2. H743A. Place jaws (2) inside collet (5). Place 2 O-rings (6)
over jaw follower (3) and cushion (8) over spring follower (7).
Assemble jaw follower (3) and spring follower (7) and insert
into collet (5). Screw this assembly onto the head piston,
making sure the tapered end of the jaw follower (3) is properly
aligned in the bevel in the back end of the jaws (2).
3. Thread nosepiece (1) completely into sleeve (4) and place
(4) into end of head body while depressing the trigger. Tighten
snugly.
5. Tighten jam-nut (11) securely.
6. These pulling heads will give long life if properly maintained.
This includes keeping the head clean and dry and all the
parts securely tightened. The only lubrication required is a
little Lubriplate inside the cone of the collet to assure a
sliding action against the back of the jaws.
7. In case of damage or wear to pulling head parts, dismantle
and replace with parts selected from the following list.
7
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