Finn BarkBlower BB-1208 MS, Parts And Operator'S Manual

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C. REGULARLY TRIPPING THE BLOWER RELIEF
The blower on your machine has a relief valve in the air line. This relief valve protects the blower
against a large back-pressure that could build if the line becomes plugged. The relief valve, set for
14 psi (97 kPa), is located directly behind the blower in the engine area on the front of the machine.
A blockage, temporary or otherwise can trip the relief valve, which causes a loud whining noise to
be heard from the engine area. Occasional blowing through the relief is expected as long as the
machine can clear itself. However, if the relief valve goes off repeatedly in a 10-second time span,
the discharge area or hose is in danger of becoming completely blocked. The floor speed should
be immediately reduced until the relief valve is not heard consistently. Partial plugging most often
occurs with less-processed material or if the mulch is wet and dense.
D. MATERIAL METERING GATE
The metering gate is a manually-operated gate located inside the rear of the hopper. It is a verti-
cal door that can be moved up and down, as well as in and out, from the feed roll. When changing
the metering gate location, it is important to understand the main material groups (page 12). The
closer the material is to Dry Aged Material, the closer the gate should be to the feed roll, and the
farther it should be from the floor. The metering gate should be moved away from the feed roll and
closer to the floor when the material is closer to Wet or Heavy Material, leaving Green Material
somewhere in the between the two. The better the material is, the less interaction the metering
gate should have. The heaver, wetter, and harder the material, the more interaction the metering
gate needs.
CLEARING A BLOCKAGE
If the unit does become plugged and the machine can not clear itself, immediately shut down the
engine. Do so by pressing the emergency stop on the Radio Remote Transmitter (RRT), or with the
ignition key on the control box. Perform the following steps:
1. Disconnect the discharge hose and determine if the blockage is in the airlock discharge.
Any blockage should be seen through the outlet. If there is no blockage, then the hose is
plugged.
2. If there is blockage, loosen the two clamps on the front and the rear of the discharge.
3. Remove the discharge.
4. Remove any blockage and clean the discharge of any mulch debris, especially on the gas-
ket surface, to permit a tight seal.
5. Install the discharge outlet and clamp into place.
6. Reconnect the discharge hose if it is not plugged.
7. Restart the machine with the floor off, then, run the engine wide open to clear out the airlock
and any mulch lying in the hose.
8. Resume normal operation.
QUICK DUMP FEATURE
The Bark Blower has a Quick Dump feature that can be used to unload bulk material quickly.
1. Shut off the feeding system by activating Material STOP on the control panel.
2. Open the access door above the airlock.
3. Select the QUICK DUMP program from the SET-UP screen.