RedMax RZT42 Operator's Manual page 16

Maintenance
Start the engine and
blades and listen for un-
usual sounds.
7
Sharpen the blades.
Replace the blades.
Replace the spark plugs.
Replace the engine oil.
Replace the engine oil fil-
ter.
Replace the fuel filter.
Replace the paper air fil-
9
ter.
Do the 300-hour servic-
10
ing.
To clean the product
CAUTION:
pressure washer or a steam cleaner.
Water can go into bearings and electrical
connections and cause corrosion which
causes damage to the product.
Clean the product immediately after use.
• Do not clean hot surfaces such as the engine,
muffler and exhaust system. Wait until the
surfaces are cool, then remove the grass or dirt.
• Before you clean with water, clean with a brush.
Remove grass and dirt on and around the
transmission, the transmission air intake, and the
engine.
• Use running water from a hose to clean the
product. Do not use high-pressure.
• Do not point the water at electrical components
or bearings. Detergent usually increases the
damage.
• Use compressed air to clean the top side of the
mower deck.
• Use a water hose to clean below the cutting
deck.
• When the product is clean, start the cutting deck
for a short period to remove remaining water.
7
Must be done by approved service agent.
8
Replace the engine oil after the first 8-10 hours of operation. During heavy load or high ambient
temperatures, replace the engine oil each 50 hours.
9
In conditions with dust, cleaning and replacement must be done more frequently.
10
Must be done by approved service agent.
16
Daily maintenance
Before After
*
8
Do not use a high-
Do maintenance
at a minimum of 1
25
time each year
X
X
O
O
O
O
O
*
To clean the engine and the muffler
Keep the engine and muffler free from grass cuttings
and dirt. Grass cuttings soaked in fuel or oil on the
engine can increase the fire risk and the risk that the
engine becomes too hot. Let the engine cool before
it is cleaned. Clean with water and a brush.
Grass cuttings around the muffler dry quickly and are
a fire risk. Use a brush or remove the grass cuttings
with water when the muffler is cold.
To clean the battery
Corrosion and dirt on the battery and the terminals
can cause the power of the battery to decrease.
1. Remove the battery. Refer to
install the battery on page 17 .
2. Flush the battery with water and let dry.
CAUTION:
pressure washer or a steam cleaner.
Water can go into bearings and
electrical connections and cause
corrosion which causes damage to
the product.
3. Clean the terminals and the cable ends of the
battery cables with a wire brush.
To do a check of the parking brake
1. Park the product on a slope with a hard surface.
Maintenance interval in hours
50 100
X
X
O
O
O
O
O
To remove and
Do not use a high-
2236 - 001 - 18.08.2023
300
*