Husqvarna 4421-D/DX/DXL owner manual AIR Intake System, AIR Filter Replacement, Air Filter Removal

Air Intake System

AIR INTAKE SYSTEM

CAUTION

•Do not drill into the driver-side frame. Failure to heed this caution could damage the engine by allowing excessive contamination to enter the air intake system.

AIR FILTER REPLACEMENT

The air filter should be inspected periodically and replaced when necessary. Filter changes should not exceed the recommended interval. See Periodic Service Schedule on page 33. More frequent service may be required in extremely dirty operating environments. In the event of a loss of power, sluggish acceleration, or a roughly running engine, service the air filter immediately.

Air Filter Removal

1.Raise the cargo bed, and locate the air filter canister.

2.Release both canister tab locks (Figure 33).

3.Pull the canister cap away from the canister.

4.Remove the air filter cartridge (1). See following NOTE.

NOTE: The air filter cartridge is specifically designed for this engine. It only fits into the canister one way. Use only the Husqvarna part (P/N 603 00 00-10) designed for this engine.

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Figure 33 Air Filter Cartridge

Air Filter Installation

1.Push the new air filter cartridge onto the nozzle inside the canister.

2.Place the canister cap, marked TOP, on the top center of the canister.

3.Secure the canister cap with both tab locks.

HUV 4421 Owner’s Manual Page 47