Land Pride LX3520 Installation Instructions Manual
Land Pride LX3520 Installation Instructions Manual

Land Pride LX3520 Installation Instructions Manual

Third function valve kit

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LX35/4020 Third Function Valve Kit
Installation Instructions
For LX3520 & LX4020 Kubota Tractors with LA545 Loader
Before You Start
When you see this symbol, the subsequent
!
instructions and warnings are serious - follow
without exception. Your life and the lives of others
depend on it!
California Proposition 65
WARNING: Cancer and reproductive harm.
!
www.P65Warnings.ca.gov
IMPORTANT: Before you begin, read these
instructions and check to be sure all parts and tools
are accounted for. Please retain these installation
instructions for future reference and parts ordering
information.
General Information
Your LX20 Third Function Valve Kit has been designed
for the LX20 Kubota Cab and ROPS tractors equipped
with a Kubota LA545 front loader. These assembly
instructions apply to the Third Function Valve Kit
Accessories listed below:
• 380-419A: 3FVK FF LX20 LA545 CAB . . . . . . page 2
• 380-420A: 3FVK FF LX20 LA545 ROPS . . . . . page 2
• 380-429A: 3FBHK LX20 . . . . . . . . . . . . . . . . page 22
Further Assistance
Your Land Pride dealer wants you to be satisfied with your
new LX20 Third Function Valve Kit. If for any reason you
do not understand any part of this manual or are not
satisfied with the service received, the following actions
are suggested:
1.
Discuss any problems you have with your Third
Function Valve Kit with your dealership service
personnel so they can address the problem.
2. If you are still not satisfied, seek out the owner or
general manager of the dealership, explain the
question/problem, and request assistance.
3. For further assistance write to:
Land Pride Service Department
1525 East North Street
P.O. Box 5060
Salina, Ks. 67402-5060
E-mail address
lpservicedept@landpride.com
© Copyright 2023
Printed
10/05/23
Manual No. 380-422M
Assembly Instructions
A detailed listing of parts for your Kubota LX3520 and
LX4020 tractors are provided on the following pages:
• LX20 CAB Third Function Valve Kit . . . . . . . page 16
• LX20 ROPS Third Function Valve Kit . . . . . . page 18
• LX20 Backhoe Accessory Hose Kit . . . . . . . page 23
Use the parts list specific to your kit as a checklist to
inventory parts received. Manuals can be downloaded
free-of-charge from our website at www.landpride.com.
Please contact your local Land Pride dealer for any
missing hardware.
NOTE: Unless specified in the procedure's section
title, all procedures apply to both cab and ROPS
tractor Third Function Valve Kits.
Direction Reference
All directional references are made from the operator
seat while facing the direction the machine will operate.
Directional Arrow Key
U
B
R
U = up
L = left
F
L
D
B = back
Initial Preparations
!
CAUTION
To avoid minor or moderate injury:
Hydraulic fluid can become hot as it flows through components
such as hydraulic couplers, hoses, lines, fittings, motors, etc.
Wear gloves when working with hydraulic components
including while connecting and disconnecting couplers. Allow
hydraulic components to cool before touching them.
Follow steps listed below before installing this kit:
1.
If attached, dismount loader from tractor. If loader is
not attached, skip to step 5.
2. Turn tractor off, then relieve all hydraulic pressure
from hydraulic lines by operating the loader control
lever in all directions. Proceed with locking the control
lever before dismounting.
3. Disconnect loader hydraulic lines from loader valve.
a. Refer to your tractor/loader Operator's Manual for
additional unhooking instructions.
4. Restart tractor and slowly back away from loader.
5. Park tractor on a flat, level surface. Put tractor in park
or set park brake, turn off engine, and remove ignition
key to prevent unauthorized starting.
6. As a safety precaution, disconnect the negative (-)
battery cable from battery terminal. Move cable away
from terminal to avoid accidental contact.
D = down
R = right
F = front
1

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Summary of Contents for Land Pride LX3520

  • Page 1 For LX3520 & LX4020 Kubota Tractors with LA545 Loader Before You Start Assembly Instructions A detailed listing of parts for your Kubota LX3520 and When you see this symbol, the subsequent LX4020 tractors are provided on the following pages: instructions and warnings are serious - follow •...
  • Page 2: Section 1: Kit Assembly

    Section 1: Kit Assembly Section 1: Kit Assembly 76716 DETAIL A 76720 Fitting (#19) to ports “A” & “B” . Fitting (#19) incorporates steel washer behind O-ring. Fitting (#14) to ports “P” & “T” . LX20 Third Function Valve Kit for Kubota Tractor (Cab & ROPS) Figure 1-1 Valve Preparation &...
  • Page 3 (#11), and two flange lock nuts (#9). 3. Position assembled valve mount against welded IMPORTANT: Land Pride recommends your dealer collar (B) on cross tube (A) as shown in Figure 1-2. connect hydraulic hoses (#27 & #28) to your tractor’s Tighten fasteners (#6 &...
  • Page 4 Section 1: Kit Assembly Hydraulic Plumbing Schematic 3. Route both hydraulic hoses (#27 & #28) over the transmission, and under the restrictor valve rod (D). Refer to Figure 1-4: 4. Secure hydraulic hose (#28) to adapter fitting (#20) Use the schematic below to help identify hose routing installed into the return to tank port, then tighten hose from third function valve (#18) to power beyond port and to prevent leakage.
  • Page 5 Install Cab Style Wire Harness 78789 The following instructions are for installing the wire harness on LX3520 and LX4020 Kubota tractors with an enclosed cab. If the tractor has a a Rollover Protective Structure (ROPS), refer to “Install ROPS Style Wire Harness”...
  • Page 6 Section 1: Kit Assembly Third Function Wire Harness Routing Power Supply Branch Routing for Cab Tractors Cut out a channel (b) on the underlying foam pad (L) to accommodate the power supply branch of the wire Refer to Figure 1-10 through Figure 1-16: harness along the tractor floorboard.
  • Page 7 Section 1: Kit Assembly 3. Disconnect green relay connector (M) found on the Routing Third Function Valve Branch upper right side of what is typically covered by From the tractor’s right side, ensure the third function disassembled meter panel cover (J). valve branch is fully pulled through hole (a) on tractor floorboard.
  • Page 8 Third Function Wire Harness Routing for ROPS Tractors The following instructions are for installing the wire harness on LX3520 and LX4020 Kubota tractors with a Refer to Figure 1-18 through Figure 1-23: Rollover Protective Structure (ROPS). If the tractor has Preparations an enclosed cab, refer to “Install Cab Style Wire...
  • Page 9 Section 1: Kit Assembly Routing Third Function Valve Branch Routing Power Supply Branch From the tractor’s left side, route the third function Secure the power supply branch with cable ties (#31) valve branch towards the third function valve (#18). to the tractor frame at each clamping location marked with white tape.
  • Page 10 Section 1: Kit Assembly Tractor Side Hydraulic Leak Check 78785 Valve Ports B & A: Check connections here. At this point, assembly of the Third Function Valve Kit is partially complete. Before moving on to complete the kit Return to Tank Port: assembly on the loader side, it is best to check all Check connection here.
  • Page 11 Section 1: Kit Assembly Install Loader Arm Hydraulic Hoses Loader Bulkhead Mount Assembly The hydraulic hoses can be installed on the LA545 Refer to Figure 1-29 & Figure 1-30: Loader with the loader disconnected from the tractor. Attach bulkhead fittings (#5A & #5B) to bulkhead Make sure the loader is stabilized and will not fall over mount (#1).
  • Page 12 Section 1: Kit Assembly 78762 HOSE CONNECTIONS Hydraulic hose: #26A #26B To valve port: Dust plug color: Green (#24) Black (#23) Pre-installed hose sleeve (#29) To bulkhead fitting: not shown for clarity purposes. Loader Hydraulic Hose Assembly Figure 1-31 Hook-up Ports “A” & “B” Hydraulic 78946 Loader Hoses to Bulkhead Mount &...
  • Page 13 Section 1: Kit Assembly Loader & Attachment Hook-up Check Operation & Fluid Level At this point in time, the installation of this Third Function Refer to Figure 1-35 & Figure 1-36 on page 14: Valve Kit is now complete. Proceed with hooking-up the IMPORTANT: Refer to your tractor Operator’s loader to the tractor, as well as the attachment to be used Manual for recommended hydraulic fluid and...
  • Page 14: Relieving Hydraulic Pressure

    Section 1: Kit Assembly Operating Third Function Valve Kit Tractor Ignition Key Your Third Function Valve Kit is now ready to be used with a multitude of attachments. Be sure to familiarize yourself with a complete understanding of how to operate the STOP Third Function Valve Kit before attempting to do so.
  • Page 15: Checking Fuses

    Section 1: Kit Assembly Checking Fuses 3. Visually inspect fuses in the tractor’s main fuse box, as shown in Figure 1-40. Refer to Figure 1-38 through Figure 1-40: a. If a fuse is blown, replace the fuse, then proceed Shutdown tractor by referring to the shutdown to check the function of the Third Function Valve procedure in the tractor Operator’s Manual.
  • Page 16: Section 2: Kit Parts List

    Section 2: Kit Parts List Section 2: Kit Parts List 78716 (#32) 380-421S Breakdown Loader-side Hydraulic Hoses 64 in. (163 cm) 78722 Tractor-side Hydraulic Hoses 68.5 in. (174 cm) 78723 49 in. (124 cm) 78721 78772 LX20 CAB Third Function Valve Kit Figure 2-1 LX35/4020 Third Function Valve Kit Installation Instructions Manual No.
  • Page 17 Section 2: Kit Parts List Kit No. 380-419A LX20 THIRD FUNCTION VALVE KIT FOR CAB TRACTOR Item Part No. Description 380-600D COUPLER MNT ..............1 380-597D HOSE STAY .
  • Page 18 Section 2: Kit Parts List 78717 (#32) 380-426S Breakdown Loader-side Hydraulic Hoses 64 in. (163 cm) 78722 Tractor-side Hydraulic Hoses 68.5 in. (174 cm) 78723 49 in. (124 cm) 78721 78772 LX20 ROPS Third Function Valve Kit Figure 2-2 LX35/4020 Third Function Valve Kit Installation Instructions Manual No. 380-422M 10/5/23...
  • Page 19 Section 2: Kit Parts List Kit No. 380-420A LX20 THIRD FUNCTION VALVE KIT FOR ROPS TRACTOR Item Part No. Description 380-600D COUPLER MNT ..............1 380-597D HOSE STAY .
  • Page 20 Section 2: Kit Parts List Third Function Valve Parts Breakdown For Kit No.’s 380-419A & 380-420A Your kit will include for (#18) 850-313C, either a Delta Valve or a Parker Valve. Look for the brand name on the valve body. When ordering replacement parts, refer to one of the parts list below based on the brand of your specific valve. Delta Valve Assembly 850-313C (#18) Parker Valve Assembly 850-313C (#18) 76268...
  • Page 21 Section 2: Kit Parts List This page left blank intentionally.  10/5/23 LX35/4020 Third Function Valve Kit Installation Instructions Manual No. 380-422M...
  • Page 22: Section 3: Backhoe Accessory Kit Assembly & Parts List

    Section 3: Backhoe Accessory Kit Assembly & Parts List Section 3: Backhoe Accessory Kit Assembly & Parts List LX20 Backhoe Accessory Hose Kit The following assembly instructions are for LX20 tractors equipped with a backhoe. If your tractor is equipped with a backhoe, the accessory kit listed below must be purchased in addition to the standard third function valve kits listed on page 1 of this installation manual.
  • Page 23 Section 3: Backhoe Accessory Kit Assembly & Parts List 5. Route hydraulic hose (#27) to the power beyond port Resume performing the remaining procedures in this and secure to adapter fitting (#12), then tighten hose manual for installing the third function valve kit. to prevent leakage.
  • Page 24 Section 3: Backhoe Accessory Kit Assembly & Parts List LX35/4020 Third Function Valve Kit Installation Instructions Manual No. 380-422M 10/5/23...
  • Page 25: Warranty

    This Warranty is limited to the repair or replacement of any defective part by Land Pride and the installation by the dealer of any such replacement part, and does not cover common wear items. Land Pride reserves the right to inspect any equipment or parts which are claimed to have been defective in material or workmanship.
  • Page 26 Corporate Office: P.O. Box 5060 Salina, Kansas 67402-5060 USA www.landpride.com...

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Lx4020

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