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Replacing pistons/o- rings – Grizzly 2-in-1 COMBINATION NAILER/STAPLER H7664 User Manual

Page 15

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h7664 2-in-1 Combination nailer/stapler

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figure 7. opening cover to clear a jam.

to clear a jammed nail from the dis-
charge area:

1. disconnect nailer/stapler

from the air supply!


2. Unlock the catch lever and pull the

magazine pusher back completely.

3. remove the nail/staple stick from the

magazine.

4. Loosen the cap screws shown in

figure 7 and remove the cover with
a 3mm hex wrench. dislodge the
jammed nail/staple with a pair of nee-
dle nose pliers.

5. secure the cover with the cap screws

removed in

step 4.

replacing pistons/o-

rings

if you use your nailer/stapler day in and
day out, repair pistons are cheap insur-
ance against wasted down time and lost
profits, in the event that a piston or piston
shaft becomes worn out. a replacement
piston and o-ring kit, part ph7664084,
may be purchased for the Model h7664.

to replace a piston and o-ring:

1. disconnect nailer/stapler

from the air supply!

2. remove all nails/staples from the mag-

azine.

3. remove the four cap screws on the

head of the nailer/stapler, near the
exhaust port.

4. remove the cap.

5. the top of the piston should now be

visible inside the cylinder, which is
housed in the head of the nailer/sta-
pler.

always disconnect air from nailer/
stapler whenever servicing! during
maintenance, a nailer/stapler con-
nected to air may fire accidentally,
causing serious personal injury!

Cover

Cap screws

6. throw the damaged nail/staple away.

7. inspect the nail/staple stick. if it is bent

or damaged, throw it away and insert
a new stick that only contains clean,
undamaged nails/staples. do not
use dirty or damaged nails/staples!

8. slide the magazine pusher forward

to the front of the magazine until the
catch lever locks.