Makita DCS3500 Repair Manual page 20

08 CARBURETOR
Basic Setting
(without Limiter Caps)
L= 1 1/2
H= 3
NOTE: Adjust the carburetor only
using a tachometer.
Pressure test
Connect the pressure gauge (chapter
00 item 8 oder 13) to the carburetor
fuel connection 1.
Set up a pressure of max. 0.5 bar.
If the pressure falls, check the
following parts:
Correct assembly of Control assy
•
(Control lever, Inlet needle, Lever
spring, lever axle)
Check seat of inlet needle for
•
dirt/foreign parts, clean if necessary
Replace control assy
•
• Replace gasket 6 and diaphragm 5
of the pump side
Control lever Control lever
Correctly Too high
installed
Reparaturanleitung PS-4600 / PS-5000
Repair manual DCS3500 / DCS3501 / DCS4300 / DCS4301 / EA3500F / EA3501F / EA4300F / EA4301F / MEA3500L / MEA3500M / MEA4300G / MEA4300L
Control lever
Control lever
Too low
General check
• Screen 7 for contamination
• Pulse hole for contamination
Check control parts
(control lever/inlet needle):
Check the tip of the inlet needle for wear.
Check control lever for correct installation, see
illustration to the left.
If the control lever is too low:
• Lack of fuel
• Poor acceleration
• No maximum power
If the control lever is too high:
• Carburetor flooding
• Starting problems
• Poor idling
• Poor transition
Check the pump diaphragm:
•
If pump diaphragm is dented, torn, or creased,
• If valve flaps are bent,
replace the diaphragm and gasket
Check control diaphragm:
• If control diaphragm is bent or torn, or there
is obvious wear at the button 8.
• If it does not return to its original position
when pulled out of it,
replace the diaphragm and gasket.
___
20