20
5. Turn the bottom nuts to tension the belt(s)
while holding the top nuts. This action
moves the indicator upward. Continue
tightening the bottom nuts until the indicator
pin is again at the top of the indicator slot.
6. Replace/close and latch the front panel/
doors. Lower the top panel and latch.
7. Unlock the power and start your Qube.
8. Resume normal operation.
6.4 PREVENTATIVE MAINTENANCE
A good maintenance program will add years of
service to your blower. A newly installed blower
should be checked frequently during the first
month of operation, especially lubrication. Check
oil level in both the drive end and gear end of
the blower and add oil as needed. Complete
oil changes are recommended every 1000
operating hours, or more frequently depending
on the type of oil and oil operating temperature.
The following is recommended as a minimum
maintenance program.
DAILY
WEEKLY
MONTHLY
1. Check and maintain oil level,
and add oil as necessary.
2. Check for unusual noise or
vibration (See
Troubleshooting
)
1. Clean all air filters. A
clogged air filter can seriously
affect the efficiency of the
blower and cause overheating
and oil increased oil usage.
Replace if necessary.
1. Inspect the entire system for leaks.
2. Inspect condition of oil and change if necessary.
3. Check drive belt tension and tighten if
necessary.
4. Inspect check valve.
6.5 LONG TERM STORAGE
Any time the blower will be stored for an extended period of time, you should take make sure that it is
protected from corrosion by following these steps:
1. Spray the interior (lobes, housing and end plates) with rust preventative. This should be repeated as
conditions dictate and at least on a yearly basis.
2. Fill both end covers completely full of oil.
3. Firmly attach a very prominent tag stating that the end covers are full of oil and must be drained and
refilled to proper levels prior to startup.
4. Apply a rust preventative grease to the drive shaft.
5.
Spray all exposed surfaces, including the inlet and discharge flanges, with rust preventative.
6. Seal inlet, discharge and vent openings. It is not recommended that the unit be set in place, piped to
the system, and allowed to remain idle for a prolonged amount of time. If any component is left open
to the atmosphere, the rust preventative will escape and lose its effectiveness.
7. During storage, ensure that the blower does not experience excessive vibration.
8. Attach a desiccant bag to either of the covers to prevent condensation from occurring inside the blower.
Make sure any desiccant bag (or bags) is so attached to the covers that they will be removed before
startup of the blower.
9. Store the blower in an air conditioned and heated building if at all possible. At least insure as dry
conditions as possible.
10. If possible, rotate the drive shaft by hand at least monthly in order to prevent seals from setting in one
position.
Too Tight
Slight Bow
Too Loose
20/64” = 5/16”
(8 mm)
20”
(50.8 cm)
8-10 lbs.
(3.6-4.5 kg)
Too Tight
Slight Bow
Too Loose
20/64” = 5/16”
(8 mm)
20”
(50.8 cm)
8-10 lbs.
(3.6-4.5 kg)
Figure 7 - General appearance of a V-Belt drive
Figure 8 - Setting of proper tension for a V-Belt drive
