Hog Technologies Stripe Hog SK3000, Operation Manual

Page: 52 / 108

52
General Maintenance
WARNING
OVERTIGHTENED DRIVE BELTS cAN cAUSE SEVERE DAMAGE
TO PULLEYS, SHAFTS AND BEARINGS IF THEY ARE ADjUSTED
TOO TIGHT OR MISALIGNED. ALwAYS MAKE SURE THE BELTS
ARE PROPERLY ALIGNED AND SET TO THE MANUFAcTURES
SPEcIFIcATIONS wHEN THEY REqUIRE ADjUSTMENT AND
NEVER OVERTIGHTEN THE BELTS.
Drive Belt Inspection and Maintenance
Daily:
• The belts must be inspected before each shift
for damage, tension and alignment.
Periodic Maintenance:
• Check drive belt tension, pulleys and belt
alignment monthly. Adjust or replace as re-
quired.
Checking Belt Tension
The proper way to check belt tension is to use a
tension tester. While a simple spring scale type
tester will do the job, the more sophisticated Sonic
Tension Meter is the only method recommended
by Hog Technologies.
Sonic Tension Meter Method
The Sonic Tension Meter detects the vibration
frequency in the belt span, and converts that mea-
surement into the actual static tension in the belt.
Checking belt tension using a sonic tension
meter:
Begin by entering the belt unit weight, belt width,
and the span length. To measure the span vibra-
tion, press the “Measure” button on the meter,
tap the belt span, and hold the microphone ap-
proximately 1/4” (.6mm) away from the back of
the belt. The Sonic Tension Meter will display the
static tension vibration frequency.
If the frequency is lower than the minimum recom-
mended frequency, the belt should be tightened.
If it is higher than the maximum recommended
frequency, the belt should be loosened.
NOTICE:
The procedure in this example is for the
Gates Sonic Tension Meter shown. Sonic
meters from different manufacturers will
require procedures unique to those meters.
Typical Gates Sonic Tension Meter
Sonic Meter Belt Tension Frequency
Specifications:
UHP Pump Belt Tension Frequency
New Belt = 72-75 Hz
Used Belt (more than 20 hours of operation) =
61-65 Hz
Blower Belt Tension Frequency
New Belt = 34-36 Hz
Used Belt (more than 20 hours of operation) =
29-31 Hz
Refer to the belt manufacturer’s manual for addi -
tional maintenance information on the drive belts.