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Troubleshooting; Replacing The Driving Blade - primatech P240 Operating Instructions Manual

Pneumatic flooring nailer

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3.
Insert actuator assembly P-542. It should slide smoothly.
4.
Insert main valve assembly P-543 .
5.
Carefully put actuator cap assembly P-544 in place.
6.
Assemble with screw P-544B, using a 3/16" Allen key.
7.
Snap head cap P-501 in place.
8.
I
- Pull out the valve P-543 downward before closing
MPORTANT
the head assembly.
A
LWAYS PULL OUT THE VALVE ASSEMBLY TO ITS
EXTENDED POSITION BEFORE CLOSING THE HEAD
. A
ASSEMBLY
THE TOOL REPEATEDLY
AGAINST A PIECE OF WOOD TO INSURE PROPER
.
OPERATION

REPLACING THE DRIVING BLADE

1.
Remove the plastic base P-433 by removing the (4) screws and
washers P-034.
2.
Remove the four hex cap screws P-005 holding the casing to
the base P-235 and remove it.
3.
Remove the reinforcement plate P-226.
4.
Pull out the bumper P-125; remove any debris from bumper and
re-use.
5.
Pull out the main piston P-522 by pulling the driving blade
P-223.
6.
Remove any debris and dispose of the broken driving blade
and screw. At this time assess condition of cylinder P-518. If
marked or grouged, use a rat-tail file to smooth out walls. The
piston P-522 must be allowed to move without restriction.
7.
Lock the piston in a vise, using a rag to prevent scoring. Open
the split ring and use a long 3/16" Allen wrench to remove the
broken blade. Discard the old screw.
8.
Install the new driving blade firmly in position, using the new
screw supplied. It is important that the blade be perpendicular
to the piston. Use of a medium strength adhesive sealant such
as Loctite 242 and tighten with as much force as possible.
Follow the instructions supplied with the new driving blade.
9.
Reverse the order of instructions to reassemble.
,
FTER REASSEMBLY
ALWAYS ACTUATE
WITHOUT CLEATS

TROUBLESHOOTING

This section will help to diagnose problems that might alter the
quality of work done by the operator, or the tool, and will give
suggestions on how to solve them. Follow the order of these
instructions.
T
O PREVENT INJURY
THE AIR SUPPLY HOSE
SERVICING OR DISASSEMBLING THE TOOL
(1) F
: C
C
IRST
HECK THE
OMPRESSED AIR SUPPLY
Many of problems come from a faulty or inadequate
compressed air supply system. Before attempting to repair the
tool, the following points should be checked:
a) check the pressure at the output of the compressor; adjust
to 80-110 psi (5.5-7.6 bar) as required
b) check the tank pressure of the compressor & adjust the
start/stop limits
c) check the air delivery system, use a hose of at least 3/8"
d) use fewer tools simultaneously; do not exceed the capacity
of the compressor or of the delivery system
e) drain water from the compressor
(2) S
: C
ECOND
HECK FOR AIR LEAKS
At rest, this tool should not have any air leak. Before attempting
to repair the tool and replace parts, check the following:
a) Tighten screws P-015 or replace gasket P-107
b) Check rectangular rings P-009 & P-543A; replace if
necessary
c) Check seal P-543D; replace if necessary; the top edge of
main cylinder P-518 should be free of dents.
d) Check seal P-516B
e) Clean & lubricate the head assembly; re-assemble the head
assembly carefully
f) Check interior of head P-506 for scratches
g) Check top ring P-014; replace if necessary
(3) T
OOL DOES NOT DRIVE CLEATS
a) Check that there are cleats in the feeder channel
b) Make sure the feeder clip is engaged behind the cleats
c) Check the front end of the feeder channel for burrs or
damages
d) Check the safety element
e) Check if the driver is stuck in down position (see 6 below)
f) Check for obstruction in the cleat ejection area
(4) C
LEATS ARE NOT SET COMPLETELY
a) First, verify air supply (see 1 above)
, ALWAYS DISCONNECT
,
WHEN ADJUSTING
.

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