12.
Table 1. Compressor Rotation.
UNIT
DRIVE
DIRECTION
KI(V) 10 - 30
Belt
Clockwise
KI(V) 40 and 50
Belt
Counter Clockwise
KI(V) 60
Direct
Counter clockwise
KI(V) 75
Direct
Clockwise
KI(V) 100
Direct
Counter clockwise
Belt Drive units - Viewed when facing compressor shaft and belt sheave.
Direct Drive units – Viewed when standing behind the motor facing compressor shaft
2.5
V-Belt Drive System (10-50 HP)
2.5.1
V-Belt Tension Adjustment
The KI-Series and KIV-Series compressors (belt driven 10 through 50 HP) are equipped with an
automatic belt-tensioning device and requires no adjustments between belt replacements. Belt tension is
established by springs between the compressor assembly base and the motor mounting plate.
By compressing the springs, additional tension is created on the belts. Spring compression dimensions
are listed Table 2 below:
Table 2. Spring Height Dimensions.
UNIT
DRIVE
DIMENSIONS
KI(V) 10 - 50
Belt
2.125 to 2.250 in (5.4 to 6.4 cm)
When a spring is relaxed it should have a dimension of 2.375 in (6 cm).
Measurements should be made from the face of the drive mounting plate to the top of the washer under
the lock nuts. See Figure 1.
Figure 1. V-Belt Tension Spring Height Measurement.
Summary of Contents for KI Series
Page 1: ...1 Model __________________ Serial __________________ Rotary Screw Air Compressors...
Page 8: ...7 INTENTIONALLY BLANK...
Page 9: ...8 CHAPTER 1 GENERAL INFORMATION...
Page 19: ...10 CHAPTER 2 INSTALLATION INSTRUCTIONS...
Page 26: ...17 CHAPTER 3 ELECTRICAL INFORMATION...
Page 30: ...21 CHAPTER 4 COMPRESSOR LUBRICANT...
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Page 40: ...31 CHAPTER 5 AIR INLET FILTER INFORMATION...
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Page 44: ...35 CHAPTER 6 COMPRESSOR OPERATIONS...
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Page 50: ...41 CHAPTER 7 TROUBLESHOOTING...
Page 57: ...48 CHAPTER 8 FORMS RECORDS AND ELECTRICAL SCHEMATICS...
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