Do not lose parts of the disassembled tool.
Use Bostitch parts.
1. Before cleaning, check that the tool is cooled down completely, and then
remove all nails, the fuel cell and the battery from the tool. (see Fig 1)
2. Detach the filter cover. (see Fig 2)
3. Remove the filter from the top cover. (see Fig 3)
4. Remove the dust and rubbish from the filter with the genuine Bostitch
cleaner. (see Fig 4)
5. Confirm that the filter is not damaged. If damaged, replace the filter with
a new one [Part No. 9R192231]. Ensure that the filter is dry and free from
contamination. Replace the filter. (see Fig 5)
6. Restore the filter cover ensuring that the filter is not wedged therein. (see
Fig 6)
7. Always carry out 6-10 test cycles on an off-cut of timber before using on
a finished surface, as cleaning residue may be expelled. (see Fig 7)
1. Before cleaning, check that the tool is cooled down completely, and then
remove all nails, the fuel cell and the battery from the tool. (see Fig 8)
2. Detach the filter cover. (see Fig 9)
3. Using 5mm hex keys, remove and retain the hex socket head bolt. (see
Fig 10 & 11) [M5 x 10] [M5 Shoulder 2pcs.]
4. Detach the top cover. (see Fig 12)
5. Using a screwdriver, remove and retain the screw. (see Fig 13) [M4 x 10]
6. Remove the wire lead (see Fig 14) from the cylinder head. (see Fig 15)
Unplug the spark plug connection from the spark plug. (see Fig 16)
7. Using a 4mm hex key, remove and retain the hex socket head bolts in the
cylinder head. (see Fig 17) [M4 x 12, 4pcs]
8. Gently lift the cylinder head away from the combustion chamber. (see Fig 18)
9. Ensuring you do not damage the fan blades, carefully remove the piston
ring from behind the fan. (see Fig 19)
10. Using a dry cloth, clean and remove all deposits from the piston ring. (see
Fig 20) Inspect the piston ring for damage and if necessary replaces it
[Part No. 9R192246]
11. Clean the cylinder head using brake cleaner, paying particular attention
to the spark plug. (see Fig 21)
12. A small brush may be useful to help release some debris. You may need
to repeat this 2 or 3 times until clean. (see Fig 22)
13. Replace the piston ring on the cylinder head. (see Fig 23)
14. Lubricate the piston ring using Bostitch Gas Nailer Lubricant [Part No.
9R192226]. (see Fig 24)
15. Lubricate the hole which the motor shaft is set in using Bostitch Gas
Nailer Lubricant [Part No. 9R192226]. (see Fig 25)
16. Spray brake cleaner into the chamber to loosen any residue. (see Fig 26)
17. Using a blunt instrument [e.g. a screwdriver handle], push down the
piston. (see Fig 27)
18. Holding the tool upside down, spray brake cleaner into the cylinder,
ensuring any residue falls back out of the tool. You may need to carry out
this operation 2 or 3 times, using a small brush to loosen some of the
more stubborn residue. (see Fig 28)
19. Using a screwdriver or a similar implement, push the driver blade back
into the tool. (see Fig 29)
20. Pull back the nail feeder to disengage the tool lock out and press down
the pushing lever on a hard surface. Using Bostitch Gas Nailer Lubricant
[Part No. 9R192226], oil round the outside groove in the combustion
chamber, where the lower piston ring is located. (see Fig 30)
21. Confirm that the piston ring is seated on the cylinder head; and then restore
the cylinder head onto the top of the tool ensuring that the wires are not
wedged therein. Take care not to damage the fan blade. (see Fig 31)
22. Depressing the body, assemble the cylinder head and confirm the piston
ring is not trapped. Set the 4 socket head bolts. (see Fig 32)
23. Put the 4 socket head bolts back to their original positions using a 4mm
hex key. (see Fig 33)
24. Check the piston ring is correctly seated by pulling back the nail feeder
and depressing the pushing lever. (see Fig 34)
25. Reconnect the spark plug lead wire and the the motor lead. (see Fig 35, 36)
26. Wrap the support (B) around the motot lead. (see Fig 37)
27. Fasten the screw using a screw driver. (see Fig 38)
28. Set the spark plug lead wire and the motor lead wire. (see Fig 39)
D: Confirm that the lead wires are inside the rib.
E: Confirm that the lead wires are not trapped by cylinder head.
F: Confirm motor lead wire setting position.
29. Replace the top cover, ensuring neither of the leads is trapped. (see Fig 40)
30. Replace the hex socket head bolt. (see Fig 41)
31. Always carry out 6-10 test cycles on an off-cut of timber before using on
a finished surface, as cleaning residue may be expelled. (see Fig 42)
Filter Cleaning
Cleaning & Lubrication
Cleaning and Maintenance Guide
English
Maintenance intervals for the Bostitch GFN1564K, GFN1664K,
& GBT1850K can vary depending upon the environment the
tool is being operated in, the application it is being used for
and the volume of nails that are being driven. For example, if
the tools are being used in dirty and dusty conditions for high
volume nailing, maintenance will be required more regularly
rather than in clean conditions with low volumes of nails.
The chart below has been produced as a guidance to help
you establish the maintenance intervals for the Bostitch
GFN1564K, GFN1664K, & GBT1850K. If you experience an
excessive build up of debris within the tool between cleans,
reduce the maintenance intervals. If the Bostitch GFN1564K,
GFN1664K, & GBT1850K does not require cleaning within the
schedule you have established, then you may be able to
extend the maintenance intervals.
If you have any questions regarding the above please contact
your local distributor for help and advice.
Number of Days Between
Maintenance Operations
Operating
Envir
onment
Very Dirty &
Dusty
6–7
6–7
6–7
3–4
3–4
10–14 10–14 10–14
6–7
6–7
30–45 30–45 30–45 10–14 10–14
45–60 45–60 45–60 30–45 30–45
1
Weekly Nail Usage [x1000]
2
4
6
8+
Dusty
Moderate
Clean
Maintenance Interval
192674-2RB 01/10
