RedMax
EX-BC
manual
Engine Unit 50100000 and up,  50 
Troubleshooting
Specifications
Install
Parts list
Maintenance Chart
Symbols on the machine
Warranty
Maintenance
Set up
Adjusting Throttle Cable
Page 50
12. Parts list
Fig.3 ENGINE UNIT (50100000 and up)
50
Page 49
Page 51
Image 50
Page 49
Page 51
Contents
OWNER/OPERATOR Manual
848-BP6-93A1
Safety First
Contents
Parts location
 3 
Specifications
 4 
 5 
Symbols on the machine
 6 
Working Circumstance
For safe operation
Working Condition
 7 
Working Plan
 8 
 9 
Before Starting the Engine
Starting the Engine
Using the Product
 10 
Handling Fuel
Maintenance
If Someone Comes
 11 
Transportation
 12 
Set up
 13 
Debris guard Plate Screw
EX-BC SE1 SE2 Installing Debris Guard
Installing Cutting Head SE2
EX-BC SE3 Balance Unit
 15 
EX-LRT SE1 Attaching the Trimming Mechanism SE1
Main pipe Trimming mechanism Screw hole Fastening bolt
EX-PS SE3
EX-PS SE1 Attaching the Pruning Mechanism SE1
EX-PS SE2
 16 
Hole Moving direction Chain tensioner nut
Chain tension adjusting screw Loosen Tighten
EX-PS SE4 EX-PS SE5 EX-PS SE6
 17 
Bracket
EX-HE SE1 EX-HE SE2 EX-HE SE3 EX-HE SE4
Clamp bolt Lock screw
 18 
Recommended Mixing Ratio Gasoline 50OIL
HOW to MIX Fuel
Fuel
 19 
 20 
Fueling the Unit
For Your Engine LIFE, Avoid
Operation
 21 
 22 
OP6 OP7 OP8
Stopping Engine OP6
OP9
Adjusting Throttle Cable
Adjusting Idling Speed OP10
 23 
Operation EX-BC only
 24 
 25 
Cutting Method
EX-BC OP4 EX-BC OP5 EX-BC OP6
Bracket Handle
 26 
What causes kick out
EX-BC OP7 EX-BC OP8 Operation
Controlling Blade Bounce
 27 
 28 
How you can reduce the chance of kick out
How you can maintain the best control
 29 
EX-BC OP9 Maintenance Blade
Transporting the Unit
EX-LRT OP1
Adjusting the Angle of the Cutting Blades OP1
Operation EX-LRT only
Clamp lever Trimming mechanism
EX-PS OP1 EX-PS OP2 Checking OIL Supply
Adjusting OIL Flow Rate
Operation EX-PS only
 31 
 32 
 33 
Operation EX-HE only
EX-HE OP1
 34 
Maintenance
Maintenance Chart
 35 
Muffler
MA4
 36 
Spark Arrester
MA6
Procedures to be Performed After Every 100 Hours of USE
MA51
Cylinder Intake air cooling vent back
Gear Case MA5
Maintenance EX-BC only
For safety reasons, do not use metalreinforced line
 38 
Quick TIP
EX-LRT MA1 EX-LRT MA2 Blades MA1
Upper blade Lower blade
Gear Case
Guide BAR
Maintenance EX-PS only
EX-PS MA1 MA2 MA3 Oiling Port
 40 
SAW Chain
EX-PS MA4 MA5 MA6
Sprocket
EX-PS MA7 MA8 MA9
 42 
 43 
Maintenance EX-HE only
MA1 Gear Case
Check Probable Causes Action
Troubleshooting guide
Storage
 44 
Parts list
EX-LRT ATT EX-PS ATT EX-HE ATT
EXZ-PU S/N 302845 and up
 46 
 47 
EX-BC S/N 302960 and up
 48 
 49 
Engine Unit 50100000 and up
 50 
 51 
Description Part Number Qty
EX-LRT S/N 000531 and up
 52 
 53 
Casing B
EX-PS S/N 000000 and up
 54 
 55 
EX-HE S/N 000101 and up
 56 
 57 
Limited Warranty
RedMax Garantie limitée
Komatsu Zenoah America INC
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