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ASSEMBLY
Hydraulic System
NOTE
It is good practice to purge the Hydraulic System before
installing the Seeder Undercarriage Assemblies onto the
Folding Seeder Frame Wing Arms to ensure that the
circuits are functioning properly.
4620-24 hydraulic system consists of 3 separate circuits.
Lift Circuit – Blue
•
Folding Seeder raised requires approximately
2.3 gallons hydraulic oil
•
Folding Seeder lowered requires approximately
2.0 gallons hydraulic oil
Fold/Unfold Circuit – Yellow
•
Folding Seeder Folded requires approximately
2.3 gallon hydraulic oil
•
Folding Seeder Unfolded requires approximately
2.7 gallons hydraulic oil
Wing Lock Circuit – Black
•
Wing Lock engaged/disengaged requires
approximately 1.1 gallons hydraulic oil
Tightening Procedure for JIC 37 degree Swivel
Female Nuts.
1. Check Fitting Flare and seat for defects.
2. Lubricate the connection.
3. Install Hydraulic Hoses without twists.
4. Hand Tighten until connections bottoms.
5. Using 2 wrenches to prevent twisting, rotate the
Swivel Nut 2 wrench flats (1/3 turn).
6. For reassembly, follow the same procedure but
tighten only 1 wrench flat (1/16 turn).
Tightening Procedure for Swivel O-Ring Fittings.
1. Lubricate O-Ring and install the Fitting until the Metal
Washer which backs up the O-Ring contacts the face
of the boss.
2. Orient the Fitting by turning counterclockwise up to 1
turn.
3. Tighten the Locknut using 50-60 Ft-Lbs of torque. See
"Hydraulic Fitting Torque Specifications" on
page 5-2.
2-2
TABLE OF CONTENTS
Seeder Undercarriage
Assembly to Wing Arm
Installation
Do not attempt to lift heavy parts manually. Use a
hoist or a fork lift to move these parts into position.
1. With Wing Arms partially unfolded, to clear the
folding seeder frame, position a Seeder
Undercarriage Assembly behind each Wing Arm.
Align the mounting hole on the undercarriage with
the Wing Arm mounting hole. See Figure 2-3.
2. Place 1/2" Nylon Thrust Washer onto Spindle Carrier
and insert into Wing Arm. Place 3/4" Nylon Thrust
Washer between Wing Arm and Undercarriage
Frame and onto the Spindle Carrier.
3. Slide Seeder Undercarriage onto the Spindle Carrier.
4. Insert the Threaded Pin through the Spindle Carrier.
Install Slotted Nut onto the Threaded Pin. Do Not
tighten.
5. Connect Pivot Lock Links to the Seeder
Undercarriage Assembly Tie Rods with 3/4-10 x
2-1/2 Bolts and secure with Locknuts.
6. Tighten Slotted Nut using 3" Hex Wrench, align holes
on Threaded Pin. Insert 3/8-16 x 3-3/4 Bolt with Flat
Washer secure with Flanged Locknut.
7. Connect the Left and Right Hand Wing Hydraulic
Hoses to the Bulkhead Tee. See Figure 2-1.
Figure 2-1: Wing Hydraulic Connection
WARNING
Seeder Undercarriage
Assembly
Connect Hydraulic
Hoses
Bulkhead Tee
Wing Arm
F-886-0322
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