MAINTAINING THE PNEUMATIC TOOL
When working on air tools, note the warnings in this manual and use extra
care evaluating problem tools.
Replacement Parts:
BOSTITCH replacement parts are recommended. Do not use modified parts or parts which
will not give equivalent performance to the original equipment.
Assembly procedure for seals:
When repairing a tool, make sure the internal parts are clean and lubricated. Use
MAGNALUBE or equivalent on all "O"-rings. Coat each "O"-ring with MAGNALUBE before
assembling. Use a small amount of oil on all moving surfaces and pivots.
Air Supply - Pressure and Volume:
Air volume is as important as air pressure. The air volume supplied to the tool may be
inadequate because of undersize fittings and hoses, or from the effects of dirt and water in
the system. Restricted air flow will prevent the tool from receiving an adequate volume of air,
even though the pressure reading is high. The results will be slow operation, misfeeds or
reduced driving power. Before evaluating tool problems for these symptoms, trace the air
supply from the tool to the supply source for restrictive connectors, swivel fittings, low points
containing water and anything else that would prevent full volume flow of air to the tool.
Trigger Valve Removal:
Automatic
1. Remove trigger pivot pin.
2. Remove trigger.
3. To remove trigger free play adjustment housing pull in direction of arrow
until it is clear of valve.
4. Remove two trigger valve pins and remove trigger valve.
Standard Valve
Remove two trigger valve pins (item 4) and remove trigger valve.
4
1
Pull
3
-10-
2