Rover 30, 35, 70, 75 Cutting Assembly, Snorkel Air Intake 3.3 Spark Plug, Blade Change

Models: 30, 35, 70, 75

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Figure 5 - Snorkel Air Intake

Rover Mowers Limited

Rotary Lawnmower

Figure 5 - Snorkel Air Intake

3.3Spark Plug

For best results remove and check the condition of the spark plug N.B: every 100 hours of use.

1.Stop the engine and remove the spark plug wire.

2.Clean dirt from around the spark plug and remove the spark plug.

3.Clean the electrodes and set the gap to 0.7 to 0.8mm. If a new plug is required refer to the engine manual for the correct spark plug.

4.Screw the spark plug into the engine and tighten to 20Nm and replace spark plug wire.

CAUTION

Do not over tighten the spark plug as engine damage may occur.

3.4Cutting Assembly

WARNING

Remove the spark plug wire before working on the cutting assembly.

1.Disconnect the spark plug wire.

2.Move the height of Cut Lever to the high cut position and fold the handle bars.

3.Tilt the mower so that the spark plug is up.

4.Inspect the cutting assembly for damage and wear.

5.Check the disc retaining bolts. Tighten the centre bolt to 65-70 Nm and the three concentric bolts to 8-11 Nm.

6.Return mower to its normal position and replace the spark plug wire.

3.5Blade Change (Refer Fig. 6 and 7)

1.Disconnect the spark plug wire.

2.Set the mower to the high cut position.

3.Lift the rear flap and prop open to give access to the blades. (Fig 6)

Figure 6 - Blade Change

4.Remove the blade, blade retaining bolts, nuts and washers and discard.

Figure 7 - Blade Attachments

5.Fit new blades, blade bolts, washers and nuts in sets to maintain balance.

6.Tighten the blade nuts to 16 Nm. Check the blades are free to move when the blade nut is tensioned.

7.Remove the flap prop and replace the spark plug wire.

3.6Throttle Control

Each 25 hours of mowing use a small amount of light oil to lubricate the throttle control lever.

3.7Washport Cleaning - Where fitted (Refer Fig. 8)

CAUTION

Do not hose the engine. Water may contaminate the fuel system.

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Rover 30, 35, 70, 75 owner manual Cutting Assembly, Snorkel Air Intake 3.3 Spark Plug, Blade Change, Blade Attachments