EGO LB4800E User manual

REPAIR GUIDELINE
Blower_LB4800E
Version: 1
Issue Date: 2015/03/05

Table of Contents
NO. Contents Page
1 Troubleshooting 3
2 Tool list for repair 4
3 Replace the ducted set 5-9
4 Replace the parts in the handle set 10-11
2

Troubleshooting
Problem Possible Cause Fault Position Test & Solution
Fail to start
PCB is broken PCB in Handle set Replace PCB in the handle set.
Both PCB and motor are
broken
PCB in Handle set,
Motor in Ducted
set
Measure the resistance between any
two cables of the three cables in the
ducted set by using a multimeter.
If the resistance is infinite, replace both
the ducted set and the PCB.
Press the boost button/Air
Velocity Adjusting Knob when the
blower runs, the air velocity and
the voice doesn’t change.
PCB is broken PCB in Handle set Replace PCB in the handle set.
Press the Lock-off Lever
separately, then release it, it
doesn’t return to the original
position.
The Lock-off Lever
deforms
Lock-off Lever in
Handle set
Replace the lock-off lever in the handle
set.
The air velocity and the volumn
are decreased compared with
normal use.
The fan in the duct is
over-worn Fan in Ducted set
Open the housing and the fan baffle,
check the fan. If the fan is over-worn,
replace the ducted set.
3

Tool List For Repair
NO. Tool List SPEC Remark
1 Magnetic bits
3 Heat gun
4 Heat -shrinkable sleeves
5 Scissors To remove the shrinkable sleeve
4

Replace the Ducted Set
5
1. Loose and remove the six screws in the right housing cover and open the housing.
Right Housing Cover Ducted Set
Right Fan Baffle
Handle Set
Description Part Number
Tapping Screw 5610032000
Left Housing 3127185000
Right Housing 3127184000
Description Part Number
Ducted Set 2823629000
Left Fan Baffle 3127205000
Right Fan Baffle 3127204000

Replace the Ducted Set
6
2. Take out the internal wires and connectors from the grooves of housing.
3. Remove the heat-shrinkable sleeve from the connectors with a scissor.
4. Move the transparent sleeve aside and pull the connectors to separate.

Replace the Ducted Set
7
Right fan baffle
Ducted set
5. Remove the six screws in the right fan baffle, then take the right fan baffle off.
6. Take out the ducted set. Replace with a new ducted set if it is damaged.
7. The left and right fan baffle can be replaced if they are broken or worn.
8. Place a new heat-shrinkable sleeve through the connectors. Plug the connectors and make
sure they are fully insert in place.
CORRECT connection: Yellow to Yellow, blue to blue, brown to brown.
Blue Yellow
Brown
Yellow
Brown
Description Part Number
Tapping Screw 5610012000

8
Replace the Ducted Set
9. Move the transparent sleeve and heat-shrinkable sleeves to cover the connectors and use a
hot air gun to shrink the sleeves.
10. Place the magnet ring into the slot between the new ducted set and the housing, press it
firmly under the new ducted set.
11. With the rib on the new ducted set towards the notch in the fan baffle, align the edge of the
new ducted set with the groove in the left fan baffle and insert the ducted set until it fully sits
against the fan baffle.
Groove Notch in the
fan baffle Rib
Magnet Ring

cable alignment
9
Replace the Ducted Set
12. Align the cables in the grooves.
13. Mount the right fan baffle onto the ducted set and lock it with six screws.
14. Close the right housing and lock it with six screws.

Replace the parts in the handle set
1. Following the instructions in “Replace the ducted set” to open the right housing cover.
2. Loose and remove six screws in the right handle housing cover and open the handle housing.
3. Replace the handle housings or any parts in the handle set if they are broken or worn.
(as shown in the next page)
4. Mount the right handle housing cover, fix it with six screws.
5. Follow the instructions in “Replace the ducted set” to close the right housing.
10
Handle assemblyRight Housing Cover

Replace the parts in the handle set
Battery
release
button
Latch
Battery ejection
lever
Spring 2
Spring 1
Spring 3
Spring 4Lock-off Lever
Trigger
Boost Button Speed
Ajusting Knob
Description Part Number
Battery Release
Button 3127201000
Latch 3127202000
Battery Ejection Lever 3127206000
Lock-off Lever 3127212000
Trigger 3127211000
Boost Button 3127214000
Speed Ajusting Knob 3127215000
PCBA 2823650000
Spring (1) 3660013000
Spring (2) 3660129000
Spring (3) 3660088000
Spring (4) 3660088000
Left handle housing 3321612000
Right handle housing 3321611000
11
PCBA
NOTICE: If replace the PCBA, following the instructions in
“Replace the ducted set” to disassemble and assemble
the three connectors.