TORO 30" Personal Pace TimeMaster Mower Transmission Assembly Replacement

Written By: Zachary Perry
  • Comments: 3
TORO 30" Personal Pace TimeMaster Mower Transmission Assembly Replacement

Difficulty

Moderate

Steps

35

Time Required

2 - 4 hours

Introduction

This guide documents the replacement of the transmission assembly for a 30" Toro TimeMaster Lawmower (21199). This transmission (part #131-9665) can be found at https://www.themowershop.com/product/tor... .

This is a moderately difficult replacement that will take approximately 2 1/2 hours and potentially require a few niche tools to be purchased.

Successful completion of this replacement will fix the self drive system.

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    • Remove spark plug wire and spark plug using a 5/8" socket to prevent accidental ignition of mower.

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    • Prop up the rear end of the lawnmower using a jack stand, scissor jack, or some other stable platform. Both rear wheels should be off the ground.

    • Use 2 wedges/wood blocks to keep the front wheels stationary.

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    • Set tire-height adjustment lever to forward-most position (past "A").

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    • Remove center nut from wheel using 9/16" socket.

    • If the nut is stuck, apply WD-40 to the site and wait a few minutes.

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    • Remove the wheel, washer, and plastic cover.

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    • Pry off the metal gear-retaining clip using a flathead screwdriver.

    • Remove gear.

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    • Remove the snap ring using snap ring pliers.

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    • Use a 1/2" socket wrench to remove the bolt holding the bearing assembly from the wheel.

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    • Remove the wheel bearing.

    • A flathead screwdriver may help to pry off a stuck bearing.

    • Refer to steps 3-9

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    • Flip the lawnmower so that the underside is visible.

    • Ensure that the gas tank side is on the top.

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    • Remove the drive belt from the two mounted locations at the transmission housing and engine shaft.

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    • Disconnect transmission stabilizing spring.

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    • Remove the plastic covers (3) from the transmission shaft.

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    • Use a 3/8" socket wrench to remove the bolts from the supporting tab.

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    • Remove the transmission from the underside of the lawnmower.

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    • Remove the drive cable from the transmission housing.

    • Needle nose pliers may help in removing the drive cable.

    • Ensure that the large spring located on the right side of the picture is disconnected from the transmission housing as well.

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    • Re-attach the drive cable at the cable mounting point of the new transmission.

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    • Slide on the transmission support tab to the transmission shaft.

    • Slide transmission shaft back into slot.

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    • Re-attach the springs to the transmission housing.

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    • Use a 3/8" socket wrench to install the 2 bolts on the bearing support tab to the underside of the lawnmower.

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    • Re-install the belt to the two mounting points.

    • Twisting the transmission housing counterclockwise will allow for the belt to stretch into position easier.

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    • Re-attach the plastic covers (3) to the transmission shaft.

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    • Flip the lawnmower back to its original position.

    • Place the scissor jack and wood blocks to support the lawnmower.

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    • Re-install the wheel bearing and bolt on the right-side wheel using a 1/2" socket wrench.

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    • Secure a clamp between the gold rod assembly and the mower sidewall to ensure that the components added next won't slide off.

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    • On the other side, re-install the height adjustment lever, wheel bearing, and bearing bolt using a 1/2" socket wrench.

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    • Re-install the snap ring using a pair of snap ring pliers. There is a groove in the rod that the snap ring must fit around.

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    • Re-install gear.

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    • Use a flathead screwdriver to re-install the metal gear-retaining clip.

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    • Re-install the wheel cover and the washer.

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    • Re-install wheel and use a 9/16" socket wrench to re-attach the center nut.

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    • Return to the other side and remove the clamp.

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    • Refer to Steps 25, 27-32

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    • Use a 5/8" socket wrench to re-install the spark plug.

    • Re-attach the spark plug cable.

Author

Zachary Perry

Member since: 12/04/22

591 Reputation

2 comments

Is there supposed to be a return spring on the other end of the lever that the traction cable attaches to?

Tom P -

On mine, it was just throttle cable to transmission and belt drive. There are some return springs just to help stabilize the transmission housing (see steps 18-22)

Zachary Perry -