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3-M. General Maintenance
WARNING: Do not clean, disassemble, assemble or
perform any type of maintenance to the SL-68 II while
it is loaded or pressurized with CO
The SL-68 II is constructed entirely of noncorrosive
materials. It will not rust if exposed to water or the
environment. All internal parts have been designed
to be super durable and they are nearly maintenance
free. However, to assure long life and smooth operation
all internal parts must be kept clean and lightly oiled. After
each use the SL-68 II should be field stripped, cleaned
and visually inspected for wear. Barrel must be clean
and dry for optimum accuracy.
4-M. General Troubleshooting
• Blast of gas out the barrel when pumping.
Cause — Pump rod screwed to far out of pump handle.
Solution — Turn rod into pump handle two turns, reassemble
and test. Repeat if necessary.
• Gun will not cock.
Cause — Pump rod screwed to far into pump handle.
Solution — Turn rod out of pump handle two turns, reassemble
and test. Repeat if necessary.
Cause — Velocity adjuster is to far out.
Solution — Turn velocity adjuster in (clockwise) until it is
flush with bolt and gun will cock.
• Gas leak around tank to receiver connection.
Cause — Worn out or damaged tank o-ring.
Solution — Replace tank o-ring. Do not remove tank under
pressure, see page 5 for correct removal instructions.
• Minor gas leak.
Cause — Worn or damaged valve seat o-rings.
Solution— Replace valve seat o-ring or return valve it is
defective.
gas.
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5-M. Valve Troubleshooting
The valve is virtually maintenance free and we do not
recommend its removal unless it develops a leak. The
seal on the valve has a lifetime guarantee and should
never wear out or leak. Unlike the tank o-ring, the valves
two o-rings are stationary and not stressed due to wear.
In the case of leaking o-rings simply replace the two valve
o-rings to correct the problem. If the seal is leaking return
entire valve assembly to us and we will replace at no
charge to you.
WARNING: Do not attempt to remove valve while
system is pressurized.
VALVE REMOVAL: To remove the valve, unscrew the
rear end cap by inserting an allen wrench through the
hole in the end cap and turning counterclockwise. Remove
the end cap and then pull the spring and valve out. If the
valve does not easily pull out, field strip the gun which
allows you to push the valve out through the rear end
cap opening.
VALVE INSTALLATION: Inspect the o-rings for wear and
lubricate before reassembly to avoid o-ring damage.
Insert the valve into the rear end cap opening (valve tube
first) with the valve spring in place as shown below.
Complete the installation by inserting the rear end cap
against the valve spring and tightening. Do not over-
tighten as damage to the end cap o-ring could result.
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