21
3. To adjust the chain tension, find the take-up bearings on either side of the floorsill near the
front of the hopper. Using a 1-1/2-in. wrench, turn the tensioning rod clockwise to tight-
en the chain and counterclockwise to loosen it. Always turn both tension rods the same
amount so that the chain is always square with the drive shaft. A misaligned chain can
come off the sprocket and buckle.
AFTER FIRST 100 HOURS OF OPERATION
1. Change engine oil and filter after 100 hours, then, every 250 hours after that, following the
engine manufacturer’s recommendations.
2. Change the gear box oil on the blower (see blower manual). Change oil every 500 hours
after that.
3. Change the gearbox oil on the airlock using SAE 80W90 oil. Change every 1,000 hours
after that.
WINTER SHUTDOWN AND STORAGE
1. Blow all material out of machine, turn engine OFF, and disconnect battery cables.
2. Remove the inlet elbow to the blower air chamber, and coat internals of impeller cylinder
with a rust inhibitor, such as WD-40. Reconnect piping to prevent foreign debris from enter-
ing blower chamber. Rotate the drive shaft three or four revolutions. Repeat this process
every month or as conditions may require.
3. Remove any material buildup in the airlock vanes and endplates. Coat the rotor vane tips
and airlock housing with a rust preventative. Rotate the airlock as necessary to coat all
internal surfaces. Repeat this process as needed to prevent excessive rust buildup.
NOTICE
If the machine is stored outside, do not allow water to accumulate or ice to form in the airlock or the
discharge pan. A severe buildup of rust on the rotor vanes can lock up a airlock, and ice expansion
can damage the airlock discharge. Also, drain the water tank and water pump hoses to prevent
freezing water from damaging the tank and pump.
CHAIN TENSION TO BE MEASURED FROM REAR
PROPER TENSION 25˝ TO 29˝
25˝ TO 29˝
Figure 5
Summary of Contents for Bark Blower BB1216
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