Snapper Comprehensive Mower Deck Belt Diagram and Replacement Guide for Lawn Mowers
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Troubleshooting, Adjustments, & Service

DC

B

E

A

Figure 34. Mower Belt Routing - 38” & 42” Decks

A.Right Arbor Pulley

B.Left Arbor Pulley

C.PTO Pulley

D.Stationary Idler

E.Belt Tensioning Idler

MOWER BELT REPLACEMENT

To avoid damaging belts, DO NOT

PRY BELTS OVER PULLEYS.

38” & 42” Decks:

1.Park the rider on a smooth, level surface such as a concrete floor. Disengage the PTO, lock the motion control levers into their neutral locked positions, turn off the engine, and remove the ignition key.

2.Raise the mower deck to its highest cutting position.

3.Pull back firmly on the belt tensioning idler (E, Figure 34) in the direction indicated, and remove the belt from the left arbor pulley (A).

4.(38” Decks Only) Loosen (do not remove) the hard- ware securing the belt tensioning idler pulley to the idler arm, just until the belt guide separates enough from the pulley to allow the belt to slip between the pulley and guide.

Note: The belt guide (A, Figure 35) has a locator tab

(B) that fits into a corresponding hole (D) in the idler arm (C) and keeps the guide aligned correctly. Should the idler assembly inadvertently come apart while loosening, be sure the belt guide is correctly reinstalled onto the idler arm.

5.Remove the old belt from the remaining pulleys.

6.Reversing steps 3 - 5, install the new belt, following the routing in Figure 34. Be sure to retighten the idler pulley hardware (if applicable).

E

D

C

B

A

Figure 35. Belt Guide Locator Tab

(38” Mower Deck Belt Tensioning Idlers)

A.Belt Guide

B.Locator Tab

C.Idler Arm

D.Alignment Hole

E.Idler Pulley

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Contents OPERATOR’S Manual Table of Contents Safety Rules & Information Safety Rules and Information From PreviousTowing Identification Numbers SnapperModels SimplicitySafety Decals Safety DecalsSafety Interlock System Operational Safety ChecksChoke Control FunctionsMotion Control Levers Features & Controls General Operating Safety Checks Before StartingOperation Starting the EngineStopping the Rider & Engine MowingZero Turn Driving Practice Smooth TravelForward Travel Practice Reverse Travel PracticePractice Turning Around a Corner Executing an End-Of-Row Zero TurnRemoval Mower Removal InstallationAttaching a Trailer Installation Regular Maintenance Before Every Spring Each Hours 100 250 Fall UseRegular Maintenance LubricationBlade Removal Service Interval Every 10 Hours or As Required Servicing the Mower BladesEngine Maintenance Check Tire PressuresChecking / Adding Fuel Fuel FilterStorage Battery MaintenanceCleaning the Battery and Cables Troubleshooting, Adjustments, & Service Troubleshooting the RiderTroubleshooting, Adjustments, & Service Troubleshooting the MowerSeat Adjustments Motion Control Lever AdjustmentSpeed Balancing Adjustment Seat Position AdjustmentRoller BAR Adjustment Motion Control Lever Friction AdjustmentCutting Height Adjustment Neutral Adjustments Brake Adjustment Parking Brake AdjustmentFront Suspension Adjustment Select Models PTO Clutch Adjustment Blade Brake CheckMower Deck Leveling Orient Blades Side-to-SideRoller BAR Leveling If EquippedTransmission Drive Belt Replacement Battery ChargingMower Belt Replacement PRY Belts Over PulleysFuse Replacement Dimensions EngineChassis TransmissionsTechnical Manuals Replacement PartsMaintenance Items

RZT185380BVE, RZT20380KH, RZT20420BVE2 specifications

The Snapper RZT20420BVE2, RZT20380KH, and RZT185380BVE are three standout models in the Snapper line of zero-turn riding mowers, designed for both residential and commercial use. Each of these mowers combines advanced technology, robust engineering, and user-friendly features to deliver a reliable lawn care experience.

The Snapper RZT20420BVE2 is a high-performance model equipped with a powerful 20 HP Kawasaki engine. This unit features a 42-inch cutting deck that enables smooth and efficient mowing for medium to large lawns. One of its key characteristics is the commercial-grade, heavy-duty construction, which ensures durability and longevity. The mower is also designed with a zero-turn radius, allowing for exceptional maneuverability around obstacles and tight spaces, making it ideal for complex lawn designs.

The RZT20380KH model offers a slightly smaller and versatile option with an 18.5 HP Kohler engine. It features a 38-inch cutting deck, providing an effective cut for smaller lawns or areas with numerous landscaping features. The adjustable cutting height ensures a customizable mowing experience, catering to various grass types and growth conditions. The mower's integrated dual hydrostatic transmission provides smooth operation and enhances control, making it easy for users to navigate around flower beds and shrubs.

The Snapper RZT185380BVE model stands out for its exceptional power and efficiency, equipped with a robust 18 HP Briggs & Stratton engine. With a 38-inch deck, it's perfect for homeowners looking for a balance of performance and ease of use. This mower is engineered with a user-friendly operation panel, making it easy for operators to control speed and cutting height. The RZT185380BVE also features Snapper’s innovative mow-in-reverse capability, which allows mowing while reversing, increasing efficiency.

Across these models, Snapper emphasizes comfort and ease of use. They are equipped with plush, high-back seats for added support during extended mowing sessions, as well as lap bars that allow fine control and increased maneuverability. The addition of LED headlights in certain models improves visibility for early morning or late evening mowing.

Each of these Snapper mowers showcases advanced engineering and design tailored to meet diverse lawn care needs. With their impressive performance characteristics, ease of operation, and durable build, the Snapper RZT20420BVE2, RZT20380KH, and RZT185380BVE are excellent choices for anyone looking to maintain a pristine lawn.
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