LS tractor XR4046 - User Manual

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LS L

O

INNOVATIVE

TECHNOLOGY

PARTNER

LS BA

C

O

ADER

LS LOADER

OPERATOR MANUAL

LS BACKHOE

C

KHOE

O

LB2100

TRACTOR Model

• I3030/I3030H/I3040/I3040H

•

R4010/R4010H/R4020/R4020H

O

PERATO

R

•

R4010/R4010H/R4020/R4020H

• XR3032/XR3032H/XR3037/XR3037H

• XR4040/XR4040H/XR4046/XR4046H

• XR3135/XR3135H/XR3140/XR3140H

• XR4140/XR4140H/XR4145/XR4145H

• XR4150/XR4150H/XR4155/XR4155H

• MT342/MT347/MT352/MT357

MT345E/MT350E/MT355E

R

MANUA

L

•

MT345E/MT350E/MT355E

L

PO Box 70, Battleboro, NC 27809

Tel

:

252

-

984

-

0700

LB

2

Tel

252

984

0700

Fax : 252-984-0701

www.lstractor.com

www.lstractorusa.com

2

100

P/NO

BT014-ME000

REVISION : 24

Table of Contents

Questions and Answers

M
michellechristensenAug 19, 2025
How to troubleshoot swing, boom, dipperstick, and bucket cylinders on LS tractor?
- A
  Amy HuffAug 19, 2025
  If the swing, boom, dipperstick, and bucket cylinders on your LS tractor aren't working correctly, start by checking the hydraulic fluid level and replenishing if low. Ensure that all hydraulic hoses are properly connected and not blocked. Look for any damage to the hoses. Also, inspect the control valve linkage for breakage and repair if needed. Make sure the quick disconnect couplers are fully connected, and replace them if necessary. If the problem persists, there may be an issue with the cylinder piston assembly, and you should check the cylinders for internal leakage.
D
Dawn BakerAug 21, 2025
Why are the cylinders on my LS tractor moving slowly and erratically?
- M
  Mr. Antonio Wallace MDAug 21, 2025
  If you notice slow or erratic cylinder movement, along with noisy operation in your LS tractor, there are several potential causes. First, ensure the hydraulic fluid level is adequate and replenish if necessary. Allow the hydraulic system to warm up, especially if the fluid is cold. Make sure the engine RPM is sufficient for proper hydraulic pump operation. Reduce the material load if it exceeds the backhoe's capacity. Check the control valve linkage for any binding or defects and repair if needed. Also, inspect hoses and tubelines for restrictions. If these steps don't resolve the issue, the cylinder piston assembly may be leaking, or the control valve may be internally leaking.
T
Tammy RileyAug 23, 2025
Why does my LS tractor have inadequate lifting capacity?
- N
  Nancy WalkerAug 23, 2025
  If your LS tractor has inadequate lifting capacity, begin by increasing the engine RPM. Reduce the load if it exceeds the specified loader capacity. Inspect the relief valve setting and reset it as needed. Check the bucket, boom, and dipperstick cylinders for leakage and repair if necessary. If the issue continues, the control valve might be leaking internally, and it may need replacement.
J
Jessica WoodAug 26, 2025
What to do if hydraulic fluid aeration occurs in LS tractor?
- K
  kristen26Aug 26, 2025
  If the hydraulic fluid in your LS tractor appears foamy, it indicates aeration. First, check and refill the hydraulic system to the correct level. Then, inspect for loose or defective connections between the reservoir and hydraulic pump that could be allowing air to leak into the suction side. Finally, make sure you are using the recommended hydraulic oil, and replace it if necessary.
R
Ross SmithAug 28, 2025
Why is the system relief valve squealing on my LS tractor?
- P
  Patrick MorganAug 28, 2025
  If the system relief valve on your LS tractor is squealing, first check the hydraulic oil to ensure it has the correct number and viscosity, and refill if needed. Reduce the load if it exceeds the backhoe's specified capacity. Check and reset the valve setting as needed. Also, inspect the hydraulic hose, tubeline, or quick disconnect coupler for restrictions and repair or replace any defective components.
D
Daniel SalazarAug 30, 2025
How to fix external hydraulic fluid leakage in LS tractor?
- J
  Joanne CarsonAug 30, 2025
  If you notice external hydraulic fluid leakage on your LS tractor, start by tightening any loose connections. Check for the origin of the oil leak and replace any defective hydraulic hoses, tubelines, adapter fittings, or adapter fitting o-rings. Replace any defective control valve o-rings. If the control valve spool or body is damaged or worn, replace the control valve. Also, check cylinders for leakage and repair as needed.
S
Steven NunezSep 1, 2025
What causes inadequate hydraulic pump capacity in LS tractor?
- C
  Cory GonzalesSep 1, 2025
  If the hydraulic pump on your LS tractor has inadequate capacity, allow the hydraulic fluid to warm up to operating temperature. Increase the engine RPM. Check for evidence of restriction in hydraulic hoses.
A
Albert DavisSep 3, 2025
Why does the backhoe on my LS tractor drop when the control valve is centered?
- C
  cordovasophiaSep 3, 2025
  If the backhoe on your LS tractor drops when the control valve spool is in the centered position, and there's no external oil leakage, check the cylinders for leakage. If leakage is not the issue, the control valve may have internal leakage and may need to be replaced.
A
Ashley MartinSep 5, 2025
What to do if cylinders operate in wrong direction on LS tractor?
- K
  kimberly27Sep 5, 2025
  If the cylinders on your LS tractor are operating in the wrong direction relative to the control valve lever position, the hydraulic hoses may be connected incorrectly. Correct the hydraulic hose connections to resolve this issue.
L
Leslie LewisSep 7, 2025
Why won't the control valve spool return to the centered position on my LS tractor?
- H
  Haley BondSep 7, 2025
  If the control valve spool(s) on your LS tractor will not return to the centered position, determine the origin of any binding in the control lever linkage and repair it. If the control valve spool centering is broken, replace the centering spring. If the control valve spool is binding in the valve body spool bore, disassemble the valve for inspection and repair.

LS tractor XR4046 Specifications

General

Engine Power	46 HP
Fuel Tank Capacity	10.6 gallons
Number of Cylinders	4
Hydraulic System Type	Open Center
3-Point Hitch Category	Category I
PTO Type	Independent
PTO Speed	540 RPM
Ground Clearance	13.4 in
Tire Size (Front)	9.5-16
Tire Size (Rear)	13.6-24
Drive	4WD
Transmission Type	Hydrostatic
Engine Type	4-cylinder, Diesel
Transmission Gears	3-range hydrostatic

Summary

Safety Precautions

Safety Decals

Backhoe Specifications

Tractor Preparation

ROPS System

Importance of ROPS for operator safety.

Tractor Hydraulic System

Backhoe Operation

Precautionary Notes

General safety and operational guidelines before starting.

Initial Backhoe Operation

First-time setup and basic operation steps.

Left and Right Stabilizer Controls

Boom and Swing Controls

Bucket and Crowd Controls

Digging Safety

Safety precautions specifically for digging operations.

Swing Lock and Boom Lock

Transporting

Procedures for safely transporting the backhoe.

Trailer;Truck Transporting

Specifics on loading and securing for transport.

Backhoe Removal

Backhoe Removal

Step-by-step instructions for detaching the backhoe.

Backhoe Installation

Backhoe Installation

Step-by-step instructions for attaching the backhoe.

How to Connect Hydraulic Line

Part 2. Backhoe Hydraulic P-Line

Part 3. Backhoe Hydraulic T-Line

Part 4. Backhoe Hydraulic

Lubrication and Maintenance

Daily or Every 10 Hours Checks

Routine checks for lubrication and maintenance.

Lubrication Quick Figure

Diagram showing grease points for lubrication.

Lubrication and Maintenance Quick Chart

Schedule for maintenance tasks and checks.

Bucket Service

Trouble Shooting

Hydraulic System Schematic

Torque Tightening Chart

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