LIGHTNIN
MIXERS AND AERATORS
®
REVISION
2001
DATE 3–16–83
REVISED 2–26–01
INST. NO. IT–1997
C
PAGE 3 OF 9
LIGHTNIN
MIXERS AND AERATORS
®
©
©
LIGHTNIN
LIGHTNIN
ROTATION
LEADING
EDGE
LARGE WEDGE SHAPED
PORTION OF HUB MUST
FACE UP.
CONVEX SURFACE
”DOWN” STAMPED ON
LOWER FACE
FIGURE 2 – IMPELLER ORIENTATION
SECTION 3 – MIXER OPERATION
3.1 LIGHTNIN mixers are designed to operate continuously at normal or low liquid levels, and in air.
IMPORTANT: Variable speed drives sometimes have critical ranges where the unit should not be operated
during drawoff or in air. These ranges will be indicated on a warning decal at the speed control. It is not good
practice to operate any mixer continuously when extreme vortexing or surging occurs.
3.2 At the end of two weeks service, check the housing cap screws, chuck screw and mounting bolts for tightness.
3.3 Dirt on the motor case acts as an insulator to prevent proper cooling. Always keep the motor clean.
3.4 At the end of the mixing cycle, it is good practice to turn off the mixer before the tank has been drained to a
level which will result in excessive splashing.
3.5 A built–in shock load feature is included in the gear drive. The grip springs (39) provide a keyless friction drive
between the gear and the drive shaft, and the springs will slip before the mixer is damaged. Therefore, if the
mixer shaft does not rotate when the motor is turned on, remove the motor (41) from the housing (36) and
tighten the grip spring locknut (61) securely. The table below lists the recommended tightening torque for this
locknut. If a torque wrench is not available, be sure the locknut is tightened sufficiently to prevent grip spring
slippage.
GRIP SPRING SPACER (37)
OIL SEAL (70)
DRIVE SHAFT (38)
INTERNAL GEAR (30)
SLINGER (71)
GRIP SPRING LOCKNUT (61)
GRIP SPRING SET (39)
PINION (31)
RETAINING RING (22)
FIGURE 3 – GRIP SPRING ASSEMBLY
RECOMMENDED TIGHTENING TORQUE FOR GRIP SPRING LOCKNUT
MODEL
TIGHTENING TORQUE
IN FOOT–POUNDS
XJQ 30
20
XJQ 87 & 117
50
XJQ 43
20
XJQ 65
50
XJQ 174
125
XJQ 230 & 350
125
Содержание XDQ Series
Страница 1: ...MIXER MANUAL INSTRUCTIONS INSTALLATION OPERATION MAINTENANCE Book No BK1978 ...
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