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Setup
3A6165J
17
Driver and Yoke Position
The driver and yoke position must be set for the volume
mix ratio of the system.
NOTE:
The mix ratio is only determined by the size of the
two pumps installed. Changing the driver and yoke posi
-
tion does not directly change the mix ratio, but it is
required to balance the pressure between the two pumps.
Check Driver and Yoke Position
1. Turn the power disconnect switch (C) to the OFF posi
-
tion.
2. Perform the
on page 20.
3. Loosen the four screws and remove the pump yoke
shroud (F).
4. Verify the correct pumps are mounted for your mix
ratio by volume. Divide the displacement of the B-side
pump by the displacement of the A-side pump (B/A) to
calculate the volume ratio.
5. Verify the driver position is adjusted correctly for that
mix ratio. If not, perform the following
procedure.
NOTE:
There are numbered indicator lines on the driver
mounting plate and on the pump yoke that show the ratio
adjustment.
F
Screws
Indicator
Lines