Great Plains Case Drain & Motor Return Tractor Connection Guide - Manual (Page 29)

page 19 of 28
Great Plains Manufacturing reserves the right to make changes or to add improvements to this guide at any time without notice or obligation.
ba082710 r3
CDMR 08/27/10
8400 Series
DTA Series
MT600B Series
The motor return and case drain ports are
capped with DIN (Deutsch Institute Normung)
sized fittings from the factory. It is necessary to
convert the motor return fitting to 1-1/16 MORB
to use the female o-ring motor return coupler
supplied with Great Plains planters and air drills.
The case drain must be converted to 3/4-16
MORB.
Tractors manufactured later than s/n P146047
will have a loadsensing decompression tube
installed between the load sense and case drain
ports. The decompression tube can be removed
if port access is needed. Removal of the
decompression tube leaves a small risk that the
hydraulic circuit could hold residual loadsensing
oil pressure.
IMPORTANT: ALWAYS connect case drain
first, motor return second, then pressure line to
prevent motor damage. ALWAYS disconnect
pressure line first, motor return second, then
case drain last to prevent motor damage.
Remove
load sensing
decompression
tube if installed,
then install plug
and nut on load
sense port.
Plug
AGCO P/N 3011134X91
Eaton Aeroquip P/N VKA12
Nut
AGCO P/N 3011118X1
Eaton Aeroquip P/N M12L
1-1/16-12
MJIC
M26 x 1.5
DIN
Eaton Aeroquip P/N 15.163-16-12
Eaton Aeroquip P/N 2266-12-12S
1-1/16-12
FJIC
1-1/16-12
MORB
Order the following part numbers for
motor return adaptors
supplied with Great Plains
planters and air drills
p/n 811-069C
}
3/4-16
MJIC
M16 x 1.5
DIN
Eaton Aeroquip P/N 15.163-8-8
Eaton Aeroquip P/N 2266-8-8S
3/4-16
FJIC
3/4-16
MORB
3/4-16
FORB
Eaton Aeroquip P/N FF-371-8FO
Order the following part numbers for
case drain adaptors and coupler
}
connect to tractor
flush face coupler
connected to fan case drain
hose from Great Plains
}
connect to tractor
connected to fan
motor return hose
from Great Plains
Motor
Return
Case
Drain
Load
Sense