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N57C DRIVER MAINTENANCE INSTRUCTIONS
Worn driver causing poor quality or loss of power:
• Wear on the driving tip will affect the nail drive, giving symptoms of bent and incompletely driven nails, and
damaged nail heads.
• The driver length may be adjusted to allow the driving tip to be redressed to compensate for wear. Heat and
precise measurement are required. Contact a qualified service technician for this adjustment.
• The length setting for a new driver is shown below. Measurement is from the bottom face of the main piston.
• Note that the measurement from the top of the piston gives the maximum amount the driver may be adjusted
to allow redressing. Always extend the driver the minimum required to allow redressing to restore the driving
end; several redressings will be possible before this maximum depth is reached.
5/32" (4.0mm) maximum limit of driver recessed into piston.
3/8" (9.5mm) maximum limit of driver recessed
Do not exceed this limit.
into piston. Do not exceed this limit.
BC602
BC603
BC604
100679
103378
105587
108585
CNTK2
TVA6
143025
5.105" - 5.125"
6.000" – 6.020"
Standard Length
Standard Length N80CB/N80P
(129.6mm - 130.2mm)
(152.4mm – 152.9mm)
(SHOWN ACTUAL SIZE)
DIRECTIONAL EXHAUST DEFLECTOR
Loosen screw as shown. Adjust to desired exhaust direction
1 pint Bostitch Air-Tool Lubricant
1 pint Bostitch "Winter-Formula" Air-Tool Lubricant
1 quart Bostitch Air-Tool Lubricant
O-Ring lube 1 lb. can
Assembly, Adjustable Contact Trip
Cap (Service Part)
Kit, Dial-A-Depth N57C
Contact trip conversion kit (black trigger)
Trigger Valve Assembly
Hanger, N64C and N57C Tool
-11-
-11-
NOTE: WHEN DRESSING IS REQUIRED, USE
.015" - .025" x 45˚ CHAMFER
(.38 - .64mm x 45˚ CHAMFER)
ACCESSORIES AVAILABLE:
SEE NOTE
and tighten screw.
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