KAH Operation & Maintenance Guide
Page: 57 of 88
Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | kruegerinfo@krueger-hvac.com | www.krueger-hvac.com
SECTION 3 - MAINTENANCE (CONTINUED)
Inspect Wheel Drive Components
Bearings - Wheel bearings are greased before shipping,
but it is recommended to grease them again before start-
up. Proper care and maintenance of the wheel bearings
should allow it to last up to 20 years.
Lubrication of bearings and bearing bolts varies depending
on the temperature range in which the wheel will be used.
For a typical temperature range of -40°-130°F (-40°-54°C)
recommended lubrication is every six months. A NLGI
grade 2 consistency, mineral oil lithium or lithium complex
based grease is recommended to be pumped into the two
bearing grease points.
Check the following parts for tightness before start-up and
every six months:
•
Bearing bolts
•
Bearing set screws (two on each side of the wheel).
Torque them to 13 ft-lb for wheels up to 78” diameter
and 24 ft-lb for wheels from 88-120” diameter.
Motor Bolts - Check the bolts securing the motor to the
base plate periodically for tightness (hand-wrench tight)
at start-up, after one month of operation, and annually
thereafter.
Drive Belts - The belt is a high performance link belt which
allows installation or replacement without using special
tools. Innergy tech recommends checking the belt after
a month of operation and every three months through a
general maintenance check. The inspection should focus
on belt wear and correct tension. If improper tension is
noticed, simply reduce the length of the belt by removing
a few links. If the belt needs replacement, contact Innergy
tech for a new belt (Innergy Tech will need the serial
number and the size of the wheel). The belt is directional;
it must be installed with the directional arrows pointing in
the direction of the motor rotation.
Belt is installed in 6 steps:
1. Ask Innergy tech for belt length. The length depends
on the wheel diameter.
2. If needed remove links by twisting the link tabs
sideways and pulling the surplus out of the belt.
3. Tape one end of the new belt to wheel and make it
turn by hand one complete revolution. The wheel
should turn freely if belt is removed.
4. Pull the belt tightly around the wheel and reducer
sheave.
5. To connect both free ends of the belt, hold belt with
tabs pointing outward. Place end tab through both
links at once. Flex belt further and insert second tab
through end link by twisting tab with thumb. Ensure
tab returns to position across belt.
6. Reverse belt so tabs turn to the inside of belt.
7. Pass the belt over the tensioner idler sheave. If there
is no tension in the tensioner, reduce the length of the
belt.
