Fault location

Fault

System

 

Observation

 

Cause

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine not starting or with

Ignition system

 

Ignition spark O.K.

 

Fault in fuel supply or compression system, mechanical

difficulty

 

 

 

 

 

 

 

defect

 

 

 

 

 

 

 

 

No ignition spark

 

STOP-switch operated, wiring fault or short circuit, spark plug

 

 

 

 

 

 

 

 

or connector defective, ignition module faulty

 

 

Fuel supply

 

Fuel tank filled

 

Incorrect choke position, carburetor defective, fuel supply line

 

 

 

 

 

 

 

 

bent or blocked, fuel dirty.

 

 

 

 

Compression

 

No compression when

Cylinder bottom gasket defective, crankshaft seals damaged,

 

 

 

 

pulled over

 

cylinder or piston rings defective or improper sealing of spark

 

 

 

 

 

 

 

 

plug

 

 

 

 

 

Mechanical fault

 

Starter not engaging

 

Broken starter spring, broken parts inside of the engine

Warm start problems

 

 

 

Tank filled ignition spark

Carburetor contaminated, have it cleaned

 

 

 

 

 

existing

 

 

 

 

 

 

 

Engine starts but dies

Fuel supply

 

Tank filled

 

Incorrect idling adjustment, carburetor contaminated

 

 

 

 

 

 

 

 

Fuel tank vent defective, fuel supply line interrupted, cable or

 

 

 

 

 

 

 

 

STOP-switch faulty

 

 

 

Insufficient performance

Several systems

 

Engine idling poor

 

Air filter contaminated, carburetor contaminated, muffler

 

may simultaneously

 

 

 

 

clogged, exhaust duct in the cylinder clogged

 

 

be affected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operating time

 

 

Before

After

 

Daily

 

 

 

 

Shutdown/

Corres-po

 

 

 

 

 

30h

50h

200h

 

 

 

operation

lubrication

 

(10h)

 

rest

nding P

Item

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inspect/clean

 

￿

 

 

 

 

 

 

 

 

10

Engine oil

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace

 

 

 

 

 

 

 

 

￿*1

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tightening parts

Inspect

 

￿

 

 

 

 

 

 

 

 

17

(bolt, nut)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clean/inspect

 

￿

 

 

 

 

 

 

 

 

￿

Fuel tank

 

 

 

 

 

 

 

 

 

 

 

 

 

Drain fuel

 

 

 

 

 

 

 

 

 

 

￿*3

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Throttle lever

Check function

 

 

 

￿

 

 

 

 

 

 

 

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stop switch

Check function

 

 

 

￿

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low-speed rotation

Inspect/adjust

 

 

 

 

 

￿

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air cleaner

Clean

 

 

 

 

 

￿

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ignition plug

Inspect

 

 

 

 

 

￿

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cooling air duct

Clean/inspect

 

 

 

 

 

￿

 

 

 

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inspect

 

 

 

 

 

￿

 

 

 

 

 

17

Fuel pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace

 

 

 

 

 

 

 

 

 

￿*2

 

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuel filter

Clean/replace

 

 

 

 

 

 

 

 

￿

 

 

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clearance between air intake

Adjust

 

 

 

 

 

 

 

 

 

￿*2

 

￿

valve and air discharge valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Oil tube

Inspect

 

 

 

 

 

 

 

 

 

￿*2

 

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Engine overhaul

 

 

 

 

 

 

 

 

 

 

￿*2

 

￿

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Carburetor

Drain fuel

 

 

 

 

 

 

 

 

 

 

￿*3

17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*1 Perform initial replacement after 20h operation.

*2 For the 200 operating hour inspection, request Authorized Service Agent or a machine shop. *3 After emptying the fuel tank, continue to run the engine and drain fuel in the carburetor.

18

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Makita BBX7600CA instruction manual Fault location

BBX7600CA, BBX7600 specifications

The Makita BBX7600CA and BBX7600 are powerful backpack blowers designed for both professional landscapers and homeowners seeking high-performance tools for yard maintenance. These models embody a combination of innovative technology, ergonomic design, and robust performance, making them ideal for tackling a range of outdoor cleanup tasks.

The BBX7600CA is equipped with a 75.6 cc, 4-stroke engine, which delivers impressive blowing power without the need for a fuel/oil mix. This engine type offers reduced emissions and a quieter operation, making it environmentally friendly and user-friendly. The BBX7600 features a similar robust engine configuration, offering reliable performance and durability to handle demanding jobs.

One of the standout features of these blowers is the “Easy Start” technology. This system significantly reduces the pull force required to start the engine, allowing for hassle-free ignition, especially during colder weather. Additionally, both models are designed with an efficient air filter system that enhances airflow while ensuring longevity and reducing the need for frequent maintenance.

Ergonomics play a critical role in the design of the BBX7600CA and BBX7600. The blowers come with a padded harness and adjustable shoulder straps, allowing users to work comfortably for extended periods. Their lightweight construction further adds to user convenience, making them easy to maneuver around the yard, whether you’re clearing leaves, debris, or grass clippings.

Another notable characteristic is the anti-vibration technology integrated into these models. This feature minimizes operator fatigue by dampening vibrations that are common in high-powered outdoor equipment. As a result, users can maintain productivity without discomfort during extensive use.

The blowers are also designed with an easy-to-access throttle and cruise control functionality. This allows users to maintain a consistent power output without having to keep their finger on the throttle trigger, enhancing control and comfort.

In summary, the Makita BBX7600CA and BBX7600 are versatile, efficient, and user-friendly backpack blowers. Their strong engines, ergonomic designs, and advanced features make them valuable additions to any outdoor tool arsenal, capable of tackling tough jobs with ease while ensuring operator comfort and reduced environmental impact. Whether for professional landscaping or residential use, these blowers stand out as reliable choices for maintaining a clean and tidy outdoor space.