Air System Description

A49113
A49113-UN-14MAY02

A - Blower

B - Hydraulic Motor

C - Motor Case Drain Line

• Blower Operation:

Blower (A) driven by a hydraulic motor (B). Blower speed is adjusted and set through use of the tractor's SCV control. A one-way check valve in the return hose prevents the blower motor from turning backward.

The motor case drain line (C) must be attached to a low-pressure drain connection on the tractor or motor damage can occur. Drain port backpressure must be less than 172 kPa (1.72 bar) (25 psi).

To engage blower, pull back SCV control to open return line; then push in to the "Lower" position until held by detent.

IMPORTANT: DO NOT place SCV control in neutral while blower is running. Damage to blower motor can occur.

To disengage blower, place SCV control in float. Do not place SCV control in neutral while blower is running.

It is normal for plenum pressure to rise and fall when the machine is in a tight right-hand or left-hand turn.

Turning can speeds up or slows down the ground drive system, putting more or less product into the air system. Plenum pressure can fluctuate in reaction to how much product is in the stream and the resulting back pressure.

A49033
A49033-UN-19JUL02

A - Plenum

B - Air Chamber

• Air System:

Between, the blower housing and meter is the plenum (A). The air stream disperses inside the plenum to reach air chamber (B).

A49034
A49034-UN-14MAY02

A - Venturi

Venturis (A) are where the air stream picks-up product as it is metered from the tank.

Single-Rank Machine: Product is then carried out through primary hose to opener.

A51139
A51139-UN-15NOV02

A51140
A51140-UN-21APR03

A - Primary Hose

B - Secondary Hose

Two-Rank Machine: Product is then carried out through primary hose (A) to row unit. A splitter is used so product can be carried to openers through secondary hoses (B).

RG53986,00001BD-19-20160222