Toro LT3340 Installation Instructions

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FormNo.3440-878RevA

VinylorFabricAirRideSeatKit

LT2240CompactTriple4-WheelDriveTurfMower,LT3340Triple

ReelMower,orLT-F3000TripleFlailMower

ModelNo.02875—SerialNo.400000000andUp

ModelNo.02876—SerialNo.400000000andUp

InstallationInstructions

Installation

LooseParts

Usethechartbelowtoverifythatallpartshavebeenshipped.

ProcedureDescription

Qty.

Use

1

Nopartsrequired

–

Preparethemachine.

2

Nopartsrequired

–

Removetheexistingseat(model

31654).

3

Nopartsrequired

–

Removetheexistingseat(models

31657and31659).

4

Seatandsuspensionassembly

1

Preparethenewseat(model31654).

5

Seatandsuspensionassembly

1

Preparethenewseat(models31657

and31659).

Locknut(8mm)

4

6

Hex-headbolt(8x25mm)

4

Installtheseat(model31654).

Hex-headbolt(8x25mm)

4

7

Locknut(8mm)

4

Installtheseat(models31657and

31659).

Standardfuse(10A)—Model31654

1

8

Minifuse(10A)—Models31657and

31659

1

Connecttheelectricalcomponents.

9

Nopartsrequired

–

Completetheseatkitinstallation.

©2021—TheToro®Company

8111LyndaleAvenueSouth

Bloomington,MN55420

Registeratwww.Toro.com.

OriginalInstructions(EN)

PrintedintheUSA

AllRightsReserved

*3440-878*

Table of Contents

Other manuals for Toro LT3340

Operator's Manual64 pages

Questions and Answers:

G
Gregory DavisSep 5, 2025
Why Toro Lawn Mower won't move forward or reverse?
- J
  Jennifer ChapmanSep 5, 2025
  If your Toro Lawn Mower isn't moving in either forward or reverse, here are a few potential causes: * The parking brake is engaged. Disengage the parking brake. * The fluid level is low. Fill the reservoir to the correct level. * The reservoir has the wrong kind of fluid. Drain the reservoir and fill it with the correct fluid. * The drive pedal linkage is damaged. Check the linkage and replace any damaged or worn parts. * The transmission bypass valve is open. Close the bypass valve. * There is a broken drive coupling. Replace the drive coupling.
R
robertskatherineSep 5, 2025
Why is my Toro Lawn Mower hydraulic fluid overheating?
- E
  Erin RandallSep 5, 2025
  If the hydraulic fluid in your Toro Lawn Mower is overheating, several factors could be responsible: * A blocked screen. Clean the screen. * Dirty or blocked fluid cooler fins. Clean the fins. * A dirty or blocked engine radiator. Clean the radiator. * A low fluid level. Fill the reservoir to the correct level. * The brakes are engaged. Disengage the brakes. * The reels are tight on the bedknives. Adjust the settings. * A malfunctioning fan or fan drive. Check the fan operation and service it as required.
K
Keith RodriguezSep 4, 2025
Why is my Toro LT3340 lacking steering?
- M
  Michael WilsonSep 4, 2025
  A lack of steering in your Toro Lawn Mower could stem from a defective steering valve, a defective hydraulic cylinder, or a damaged steering hose. You should service or replace the steering valve or hydraulic cylinder, or replace the defective hose.
L
lisa22Sep 3, 2025
What to do if my Toro LT3340 Lawn Mower cutterhead fails to lift?
- L
  Larry PhillipsSep 4, 2025
  If the cutterhead on your Toro Lawn Mower fails to lift, it could be due to a lift cylinder seal failure, a pressure relief valve jammed open or wrongly set, a defective control valve, or a mechanical blockage. Replace the seals or remove the blockage to resolve the issue. You may need to have the relief valve pressure checked by an authorized dealer or overhaul the control valve.
R
robertschristinaSep 3, 2025
What causes excessive bottom blade wear in my Toro LT3340 Lawn Mower?
- O
  oharveySep 3, 2025
  Excessive bottom blade wear in your Toro Lawn Mower can be caused by the bottom blade being in heavy ground contact, rounded cutting edges on the cutting cylinder or bottom blade, the cylinder being in heavy contact with the bottom blade, a damaged cutting cylinder or bottom blade, or excessively abrasive ground conditions. To address this, raise the height of cut, adjust the cutting cylinder to the bottom blade, back lap or regrind to restore cutting edges, or grind or replace the damaged components as necessary.
A
angelamillerSep 2, 2025
Why is the hydraulic oil system overheating in my Toro LT3340 Lawn Mower?
- S
  Sandra HoodSep 2, 2025
  The hydraulic oil system in your Toro Lawn Mower might be overheating due to several reasons: a blocked screen, blocked oil cooler fins, a blocked engine radiator matrix, a low relief valve setting, a low oil level, engaged brakes, cutting cylinders tight on the bottom, or a defective fan or fan drive. To resolve this, try the following: Clean the screen and fins, ensure the oil reservoir is at the correct level, disengage the brakes, and adjust the cutting cylinder settings. You may need to have the relief valve pressure checked by an authorized dealer. Check the fan operation and service as required.
T
Thomas BrooksSep 2, 2025
What to do if my Toro Lawn Mower has some uncut or poorly cut strands of grass?
- S
  stacey69Sep 2, 2025
  If your Toro Lawn Mower leaves some uncut or poorly cut strands of grass, check if: * A reel is partially out of contact with the bedknife. Adjust the reel-to-bedknife contact. * A reel is in heavy contact with the bedknife. Adjust the reel-to-bedknife contact. * The height of cut is too high. Lower the height of cut. * The cutting edges of the reels/bedknives are rounded. Back lap or grind the edges.
U
ugriffinSep 1, 2025
Why Toro Lawn Mower has areas of uncut grass at the overlap between cutting units?
- H
  Harold HarrisSep 1, 2025
  If your Toro Lawn Mower leaves areas of uncut grass at the overlap between cutting units, it could be due to: * Turning too tightly. Increase the turning radius. * The machine sliding sideways when driving across a slope. Mow up or down the slope. * No ground contact on one end of the cutting unit due to poorly routed hoses or wrongly positioned hydraulic adapters. Correct the hose routing or the position of the hydraulic adapters. * No ground contact on one end of the cutting unit because a pivot pin is seizing. Release and grease the pivot points. * Grass buildup under the cutting unit preventing ground contact. Clear the grass buildup.
A
Aaron MccormickAug 31, 2025
What to do if Toro Lawn Mower has lines of uncut or badly cut grass in the direction of travel?
- L
  Linda GilbertSep 1, 2025
  If your Toro Lawn Mower leaves lines of uncut or badly cut grass, consider these potential causes: * Tram lining of the cutting edges due to heavy contact caused by poor reel-to-bedknife adjustment. Back lap or grind the edges. * The bedknife is in contact with the ground. Raise the height of cut. * The bedknife has a nose-down angle. Adjust the cutting unit to position the bedknife parallel to the ground. * The cutting units are bouncing. Reduce the forward speed and reduce the weight transfer. * Worn reel bearings/bearing housing pivots. Replace any worn parts. * Loose components in the cutting unit. Check and tighten components as necessary.
B
Brianna CoxAug 31, 2025
Why Toro LT3340 is losing power after initial satisfactory operation?
- R
  Rachel LivingstonAug 31, 2025
  Your Toro Lawn Mower may lose power after some use because: * A pump or motor is worn, in which case you should replace parts as necessary. * The hydraulic fluid level is low. Refill the hydraulic fluid tank to the correct level. * The fluid in the hydraulic system has the wrong viscosity. Replace the fluid in the hydraulic tank with the correct viscosity-grade fluid; refer to the Specifications section. * The fluid-filter element is blocked, so change the filter element. * The system is overheating. Check the reel-to-bedknife adjustment and reduce the work rate by increasing the height of cut or reducing the forward speed. * There are leaks on the suction hose. Check and tighten the fittings, replacing the hose if necessary.

Toro LT3340 Specifications

General

Brand	Toro
Model	LT3340
Category	Lawn Mower
Language	English

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