Air Compressors & Air Tools

senco pneumatic nailer, i believe pwbla bla bla i think sms something?

this gun is leaving a high staple. since i get paid by the piece, any ideas why it would do it more than occassionally just in the last few weeks. and the maintenance is like way up to date. ive tried everything but rebending the safety bale which is obviously wore or the fact that the driver and staple chamber have been misaligned. anything is possible. this gun is used and missing some lock washers and sometimes things come loose.
help??????? its costing me. sometimes i have to stop shingling every 1 to 3 shingles to drive 1 down. i suppose i could have it serviced, but it is by far the best gun in the bunch. i could buy 1 but since im new to roofing, im afraid i lack the finesse to keep the safety bale on the pw150r str8. any pointers for a new guy?

Here are some links to Senco.
It appears they have a depth of drive control setting which may need to be adjusted.

Use and maintenance guide (PDF)

http://www.senco.com/pdf/manuals/us/hvst060_3_15_04.pdf

Spec sheet:

http://www.senco.com/pdf/spec_sheets/PW150R_ss.pdf

Parts reference guide:

http://www.senco.com/pdf/manuals/us/hvst060_3_15_04.pdf

List of tool repair kits:

http://www.senco.com/pdf/catalog/repair.pdf

Find Senco dealers:

http://www.senco.com/buy/index.asp

Senco tech questions:

http://www.senco.com/con_rem/questions.aspx