Table of Contents
Advertisement
TESTING MANDREL CLOSING FORCE
Adjust the pneumatic system to produce safe closing mandrel closing force using the
directions on page 9.
Use the TEST switch to close the riveting mandrel each time you make a change in the
pressure regulator settings. A successful pneumatic setting will provide a force under 25
pounds between the mandrel and lower tool. There are two methods to check this force:
1.
The most precise method is to use a tip force measuring instrument between the
riveting mandrel. This produces data that can be recorded on safety records and
is less subjective to visual observation. Unfortunately, most of these devices do not
have any accuracy in the low force ranges. Do not use an instrument that has
poor or unknown accuracy in the low force range. An excellent device that can
read the low forces is Tuffaloy model 601-3000DLC. This unit can also be used to
read riveting forces up to 3,000 pounds.
2.
Place a wood pencil between the riveting mandrel and close using the TEST switch.
The riveting mandrel should not dent more than 1/16" into either side. A typical #2
wood office pencil works well. A carpenter's pencil works better since the flat area
is much larger.
SOFT TOUCH FOR PNEUMATIC RIVETERS |
17
Advertisement
Table of Contents
