Cub Cadet HB425 - Manual (Page 6)

6
OPERATING INSTRUCTIONS
HOLDING THE BLOWER
Before operating the unit, stand in the operating position. Check for the following:
•
Operator is wearing proper clothing, such as boots, safety glasses or goggles, ear/hearing protection,
gloves, long pants and long sleeve shirt
• If the conditions are dusty, the operator is wearing a dust mask or face mask
• The unit is in good working condition
• The tubes are in place and secure
OPERATING TIPS
Using the Cruise Control
1. Once the engine has started and warmed up, squeeze
the trigger to accelerate the unit as needed (Fig. 14).
2. For longer periods of operation and to eliminate
possible finger fatique, move the cruise control toward
the FAST position to incrementally increase or maintain
the unit’s engine speed (Fig. 14). When the cruise
control is pressed, the trigger will recede into the
handle.
3. To decrease engine speed, move the cruise control to the SLOW position and the trigger will return to
idle (Fig. 14).
WARNING: To avoid serious personal injury, wear goggles or safety glasses at all
times when operating this unit. Wear a face mask or dust mask in dusty locations.
WARNING: After starting the unit, always stand on the left side of the unit to operate
it as shown in figure 15 to keep from blocking the air intake.
Fig. 14
Cruise
Control
Trigger
(Idle Position)
FAST
SLOW
MAINTENANCE AND REPAIR INSTRUCTIONS
MAINTENANCE SCHEDULE
Perform these required maintenance procedures at the frequency stated in the table. These procedures
should also be a part of any seasonal tune-up.
NOTE: Some maintenance procedures may require special tools or skills. If you are unsure about these
procedures take your unit to any non-road engine repair establishment, individual or authorized
service dealer.
NOTE: Maintenance, replacement, or repair of the emission control devices and system may be performed by
any non-road engine repair establishment, individual or authorized service dealer.
In order to assure peak performance of your engine, inspection of the engine exhaust port may be
necessary after 50 hours of operation. If you notice lost RPM, poor performance or general lack of
acceleration, this service may be required. If you feel your engine is in need of this inspection, refer service
to a qualified Cub Cadet service dealer for repair. DO NOT attempt to perform this process yourself as
engine damage may result from contaminants involved in the cleaning process for the port.
WARNING: To prevent serious injury, never perform maintenance or repairs with unit
running. Always service and repair a cool unit. Disconnect the spark plug wire to ensure
that the unit cannot start.
FREQUENCY MAINTENANCE REQUIRED SEE
Before starting
engine Fill fuel tank with fresh fuel
Check oil p. 5
p. 6
Every 10 hours Clean and re-oil air filter p. 6
1 st change at 10 hrs
2 nd change at 40 hrs
Every 40 hours after
Change oil
Change oil
Clean spark arrestor and change oil p. 6
p. 6
p. 7 & 6
10 hrs on new
engine
Every 40 hours
Every 40 hours
Check rocker arm to valve clearance and adjust
Check rocker arm to valve clearance and adjust
Check spark plug condition and gap p. 7
p. 7
p. 7
200 hours Take unit to authorized Cub Cadet service center for service
CHECKING THE OIL LEVEL
The importance of checking and maintaining the proper oil level in the
crankcase cannot be overemphasized. Check oil before each use:
1.
Stop the engine and allow oil to drain into the crankcase.
2. Place the engine on a level surface (Fig. 16).
3. Clean the area around the oil plug before removing it. Keep
dirt, grass clippings, and other debris out of the engine.
4. Remove the oil fill plug.
5. Look into the oil fill hole (use a flashlight if needed). The oil
should be just touching the innermost thread (Fig. 17).
6. If the oil level is not touching the innermost thread on the oil fill hole, add a small amount of oil to the
oil fill hole and recheck (Fig. 17). Repeat this procedure until the oil level reaches the innermost thread
on the oil fill hole.
NOTE: Do not overfill the unit.
NOTE: Make sure the O-ring is in place on the oil fill plug when
checking and changing the oil (Fig. 18).
CHANGING THE OIL
For a new engine, change the oil after the first 10 hours of
operation. Change the oil while the engine is still warm. The oil will
flow freely and carry away more impurities.
1.
Remove the oil fill plug.
2. Pour the oil out of the oil fill hole and into a container by tipping
the unit to a vertical position (Fig. 19). Allow ample time for
complete drainage.
3. Wipe up any oil residue on the unit and clean up any oil that may have spilled. Dispose of the oil
WARNING: Wear gloves to prevent injury
when handling unit.
Fig. 16
AIR FILTER MAINTENANCE
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of operation. It is an
important item to maintain. Failure to maintain the air filter will VOID
the warranty.
1.
Open the air filter cover. Push the tab on the left side of the cover
inward. Then pull the air filter cover out and to the right (Fig. 21).
2. Remove the air filter (Fig. 21).
3. Wash the filter in detergent and water (Fig. 22). Rinse the filter
thoroughly and allow it to dry.
4. Apply enough clean SAE 30 motor oil to lightly coat the filter (Fig. 23).
5. Squeeze the filter to spread and remove excess oil (Fig. 24).
6. Reinstall the filter (Fig. 25).
NOTE: If the unit is operated without the air filter, you will VOID the warranty.
WARNING: To avoid serious personal injury,
always turn your trimmer off and allow it to cool
before you clean or service it.
Fig. 21
Air Filter
Air Filter
Cover
Tab
Other Tips
•
Assure the unit is not directed at anybody or any loose debris before starting the unit.
• Verify that the unit is in good working condition. Make sure the tubes are in place and secure.
• Always hold the unit securely when operating. Keep a firm grip on the handle.
• To reduce the risk of hearing loss associated with sound level(s), hearing protection is required.
• Operate power equipment only at reasonable hours— not early in the morning or late at night when
people might be disturbed. Comply with times listed in local ordinances. Usual recommendations are
9:00 am to 5:00 pm, Monday through Saturday.
• To reduce noise levels, limit the number of pieces of equipment used at any one time.
• To reduce noise levels, operate power blowers at the lowest possible speed to do the job.
• Check your equipment before operation, especially the muffler, air intakes and air filters.
• Use rakes and brooms to loosen debris before blowing.
• In dusty conditions, slightly dampen surfaces or use a mister attachment when water is available.
• Conserve water by using power blowers instead of
hoses for many lawn and garden applications, including
areas such as screens, patios, grills, porches, and
gardens.
• Watch out for children, pets, open windows or freshly
washed cars, and blow debris safely away.
• Clean up after using blowers and other equipment.
Dispose of debris appropriately.
• Use the blower for trees, shrubs, flower beds and hard-
to-clean areas. Also use the unit around buildings, walls,
overhangs, fences and screens, and for other normal
cleaning procedures.
• Hold the blower with the right hand. Do not stand on
the right side of the blower when operating the unit (Fig.
15). If you do, you will be blocking the air intake and
this will affect the unit’s performance. Instead, be sure
to stand on the left side of the unit to maximize the
unit’s efficiency (Fig. 15).
Fig. 15
INCORRECT
POSITION
CORRECT
POSITION
according to Federal, State and local regulations.
4. Refill the crankcase with 2.03 fluid ounce (60 ml) of SAE 30 SF,
SG, SH oil (Fig. 20).
NOTE: Use the bottle and spout saved from initial use to measure
the correct amount of oil. The fill line on the label on the
bottle measures approximately 2.03 ounces (60 ml) (Fig.
20). Check the level, See Checking the Oil Level. If the
level is low, add a small amount of oil and recheck. Do not
overfill (Fig. 17).
5. Replace the oil fill plug.
6. Reconnect the spark plug boot.
Oil Fill Plug
Oil Fill Hole
O-Ring
Fig. 18
Fill Level
Fig. 20 Fig. 19
Fig. 22 Fig. 24 Fig. 23 Fig. 17
Innermost Thread
Oil Fill Hole
WARNING: To prevent serious
personal injury or damage to the unit,
make sure blower tubes are in place
before you operate the unit.