Nexen STB600 927239 - Manual (Page 7)

FORM NO. L-20300-C-0511 7
WARNING
Never exceed maximum operating
speeds listed for your product.
(See Table 1).
OPERATION
TABLE 1
Size Max RPM
STB 600 3600
STB 940 2400
CAUTION
The temperature limits for this
product line are 4.5-104 Degree
Celsius (40-220 Degree F).
WARNING
Ensure proper guarding of the product is used.
Nexen recommends the machine builder
design guarding in compliance with OSHA 29
CFR 1910 “Occupational Safety and Health
Hazards”.
CAUTION
Never exceed life of facing material. Facing
life depends on the volume of material and
the total energy over the life of the unit.
Expected life (in hrs) can be found by:
Time=Volume/(Power*Wear Rate).
SYMPTOM PROBABLE CAUSE SOLUTION
Failure to engage. Air not getting to the STB. Check for a control valve malfunction or
low air pressure.
Failure to disengage. Unexhausted air. Check for a control valve malfunction.
Friction Facing squeal or
chatter. Air pressure too high. Reduce the air pressure.
Wrong Friction Facings for the
application. Replace the Friction Facing with correct
facing for application.
Wobble or vibration. Shaft misalignment. Inspect the shaft and realign it if
necessary.
TROUBLESHOOTING
Diaphragm
Cylinder
Piston
Endcap
Piston
Guide
Friction
Facing
Compression
Spring
Facing
Pin
Key
O-Ring
Torque Pin
Hole
FIGURE 5
Hub
Ball
Bearing