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Reparaturanleitung PS-4600 / PS-5000
20
Repair manual DCS3500 / DCS3501 / DCS4300 / DCS4301 / EA3500F / EA3501F / EA4300F / EA4301F / MEA3500L / MEA3500M / MEA4300G / MEA4300L
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.
08 CARBURETOR
Control lever
Control lever
Correctly
installed
Control lever
Too high
Control lever
Too low
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