Husqvarna Z448 Operator's Manual page 25

Problem
The engine does not run smoothly.
The engine apparently has no power.
There is vibration in the product.
The engine becomes too hot.
The battery does not charge.
The product moves slowly, with irregular
speed or not at all.
The drive of the blades do not engage.
2237 - 001 - 11.08.2023
Cause
The carburetor is incorrectly set.
The fuel filter or fuel jet is clogged.
The choke is engaged and the engine is warm.
The check valve on the fuel tank cap is clogged.
The fuel tank is almost empty.
The spark plug is damaged.
Incorrect fuel mix or fuel type.
There is water in the fuel.
The air filter is clogged.
The air filter is clogged.
The spark plug is damaged.
The carburetor is incorrectly set.
There is air in the hydraulic system.
The blades are loose. Refer to
20 .
One or more of the blades are not balanced. Refer to
ine the blades on page 20 .
The engine is loose.
The air filter or the cooling fins are clogged.
There is overload in the engine.
The airflow around the engine is not sufficient.
The engine speed regulator is damaged.
The oil level is too low.
There is dirt in the fuel line.
The spark plug is damaged.
The connection at the cable connectors on the battery terminals
To clean the battery on page 17 .
is bad. Refer to
The charging lead is disconnected.
The charging system is damaged.
The bypass lever is engaged.
The drive belt on the transmission is loose or damaged.
There is air in the hydraulic system.
The drive belt on the mower deck is loose.
The electromagnetic coupling contact is loose.
The drive of the blade is damaged or loose from the cable con-
nectors.
A fuse is blown.
To examine the blades on page
To exam-
25