Q550 - Replacement Parts & Kits

The Q550 is available in a several configurations.
Replacement parts & kits for all configurations are listed below.
Always refer to the schematic specific to your tool version before ordering parts.

IMPORTANT
NEVER apply thread-locker or sealant onto head, cylinder or main body threads.
The use of thread locker will VOID the warranty.
Always refer to the schematic specific to your tool when ordering parts.
Locate the tool code on your tool and goto the selector.


Part
Number
Description
Notes
A‑866C Connecting stem For A‑866 roller base only.
Not sold separately; order Q‑961.

H‑055

Pusher assembly For nail magazines Q‑048 & Q‑049 only.
H‑055C Pusher assembly For nailer/stapler combo magazine Q-153 only.
H‑083A Mallet grip
H‑084  Head cap (for all mallets) See Installation instructions.
P‑080 Mallet
P‑084 Rubber cap Also available in Display Kit of 8 (ask for H-984).
P‑254 Handle grip
P‑562 Safety contact For A‑866 roller base only.
P‑616D Head lock
P‑622C Lock washer Not sold separately; supplied with driving blade Q‑023.
Q‑001 Head cap
Q‑001A Head disk Not sold separately; order Q‑001.
Q‑006 Head body For first version of the Primpact module only. See Technical Note.
NEVER apply thread-locker or sealant onto head, cylinder or main body threads.
Q‑006A o-ring
Q‑016 Main body For Q550 with first version of the Primpact module only. See Technical Note for replacement part number.
NEVER apply thread-locker or sealant onto head, cylinder or main body threads.
Q‑016A o-ring
Q‑018 Main cylinder For first version of the Primpact module only. See Technical Note for replacement part number.
NEVER apply thread-locker or sealant onto head, cylinder or main body threads.
Q‑018A Band-valve
Q‑022L Piston Not sold separately; order Q‑993N.
Q‑022A Wear ring See Note.
Q‑022B o-ring Not sold separately; order Q‑022A.
Q‑023 Driving blade Supplied assembled with piston Q‑022L; order Q‑993N.
Q‑025A Bumper For first version of the Primpact module only.
Important - see Technical Note for replacement part number.
Q‑025B Seal bushing
Q‑029 Foot
Q‑032 Gate For nail magazines Q‑048 & Q‑049 only.
Q‑033 Plastic base
Q‑034 Resting block For standard base only; does not fit roller base. See also A‑865 or A‑866 roller bases.
Q‑034A Bracket
Q‑035A Left bracket
Q‑035B Right brachet
Q‑036 Cam axle Not sold separately; order complete kit Q‑936.
Q‑036A Left cam Not sold separately; order Q‑936.
Q‑036B Right cam Not sold separately; order Q‑936.
Q‑039 Gate For nailer/stapler combo tool only.
Q‑042 Actuator Not sold separately; order complete valve assembly Q‑143V.
Do not attempt to disassemble. See Technical Note.
Q‑042A Seal
Q‑043 Valve Discontinued; order Q‑143V.
Do not attempt to disassemble. See Technical Note.
Q‑043V Valve assembly Discontinued; order Q‑143V.
For first version of Primpact module only. See Technical Note.
Q‑044 Actuator cap Not sold separately; order complete valve assembly Q‑143V.
Q‑046 Slider assembly Order H‑055.
Q‑048 "L" nail magazine Regular 120 nails capacity.
Q‑049 "L" nail  magazine Extended 240 nails capacity.
Q‑061 Safety Not sold separately; order Q‑961.
Q‑061B Connecting stem For Q‑033 regular base only.
Not sold separately; order Q‑961.
Q‑061D Spring Not sold separately; order Q‑961.

Q‑062

Safety contact For regular adjustable base Q‑033 and roller base A‑865 only.
For roller base A‑866, order P‑562.
Q‑062A Locking rod
Q‑106 Head body For new version of the Primpact module only. See Technical Note.
NEVER apply thread-locker or sealant onto head or main body threads.
Q‑116 Main body For Q550 with the new version of the Primpact module only. See Technical Note for replacement part number.
NEVER apply thread-locker or sealant onto head or main body threads.
Q‑118 Main cylinder For new version of the Primpact module only. See Technical Note for replacement part number.
Q‑118B o-ring For cylinder Q-118.
Q‑118C o-ring For cylinder Q-118.
Q‑118D o-ring For cylinder Q-118.
Q‑125A Bumper For new version of the Primpact module only. See Technical Note for replacement part number.
Q‑143V Valve assembly Complete valve assembly including actuator.
Do not attempt to disassemble. See Technical Note.
Important - see this Technical Note for replacement part number.
Q‑153 Combo magazine Combo nailer/stapler magazine.

Parts Kits

Kit
Number
Description
Notes
Q‑936 Axle & cam kit  Including hardware.
Q‑961 Complete safety kit Complete assembly including connecting stem, spring & pivot. See also Installation Note.
Q‑993C Overhaul kit Complete head/cylinder & wear parts kit (see content) for Q550 with first version of Primpact module only (v142 & previous); see Technical Note for replacement part number.
Q‑993M Maintenance kit Replacement of all wear parts; see details.
Q‑993N Piston assembly Complete piston & driving blade assembly; see details.
Q‑993R Rebuild kit Rebuild kit for all Q550 tools; see details.

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