Yanmar 4LHA-STZP Specifications Page 57
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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55
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Trouble
●Alarm buzzer
sounds and alarm
lamps go on
during operation
○Eng. L.O. Press. Engine L.O. insufficient; L.O. level check,
Warning Lamp L.O. filter clogged. resupply, replace 3.3
goes on. Replace L.O. filter 5.2.1(1)
Replace Eng. L.O. 5.2.1(1)
○
Marine gear lube oil
Insufficient
marine gear
Check the oil level 3.4
level
light goes on.
lube oil and supply.
○C.W. Temp.(Fresh Fresh water tank Check C.W. level
Water) Warning water level low. resupply 3.5
Lamp goes on. Cooling seawater System clogged; air.
discharge insufficient has entered the system
Contamination inside Ask for repairs.
the cooling system.
○Fuel Filter drain Drain excessive in the Drain the water in the 5.2.2(3)
Lamp goes on W/O separator W/O separator of the
(4LHA-HTP/-HTZP) fuel filter
●Warning Devices
are Faulty.
When Switch is
Tur ned ON:
○Alarm buzzer 2.5
does not sound Circuit broken or
○Warning lamps buzzer defective. Ask for repairs.
do not go on
Eng. L.O. Press.
○Charge lamp does Circuit broken or lamp Ask for repairs.
not go on. burnt out.
When the Key Returned
to ON from START after
Engine Starting:
○Buzzer keeps on Short-circuit (if lamp Ask for repairs.
sounding goes out)
○One of the warning Sensor switches faulty Ask for repairs.
lamps does not go out.
Shift to low speed operation immediately, check which lamp has
come on and stop the engine for inspection.
If no abnormality is identified and there is no problem with
operation, return to port at your lowest speed and request repairs.
Do not run the engine with alarm devices still unrepaired.
Trouble will progress and a serious problems may result.
Probable Cause
Measure
Reference
(Note) Other warning lamps do not go on when the switch is
turn on. They only go on when there is an abnormality.
[NOTICE]
[NOTICE]
6. TROUBLESHOOTING
- OPERATION MANUAL 1
- California 2
- Proposition 65 Warning 2
- Code No 3
- 7. SYSTEM DIAGRAMS 5
- 1. FOR SAFE OPERATION 6
- 1.2 Safety Precautions 7
- Name plate 9
- 2. EXPLANATION OF PRODUCT 11
- 2.2 Engine Specifications 12
- 4LHA-DTP/-DTZP 13
- Marine gear (Option) 13
- 4LHA-STP/-STZP 14
- 2.3 Names of parts 15
- Stern driving devices 17
- BRAVO, MERCRUISER 17
- 2.4 Major Servicing Parts 18
- 2.5 Control Equipment 19
- New C-type 20
- New D-type 20
- DIESEL 21
- PREHEAT 21
- 2.5.2 Remote Control Handle 23
- 3. BEFORE OPERATION 25
- 3.1.2 Lube oil 26
- 3.1.3 Cooling Water 26
- (1) Handling of Cooling Water 27
- 3.2 Supplying Fuel 28
- Lube oil filler cap 29
- Air bleeding 29
- Dipstick 29
- Upper limit 30
- Lower limit 30
- Power steering 30
- 3.5 Supplying Cooling Water 31
- 3.6 Cranking 32
- 4. HOW TO OPERATE 34
- Burns from Scalding 35
- 4.3 Starting 36
- (2) Checking for problems 37
- [NOTICE] 37
- 4.6 Check During Operation 39
- 4.7 Stopping the Engine 40
- 4.8 Operation Procedure 41
- 4.9 Long-Term Storage 42
- Fresh water cooler 43
- For 4LHA-HTP/-HTZP 43
- Lube oil filter 43
- Air bleeding plug 47
- Drain plug 47
- Fuel filter 48
- Drain cock 48
- Battery Fluid 49
- (1) Replacing the Fuel Filter 50
- Corrosive Zinc 51
- Setteng bolts 52
- Governor 52
- lever 52
- Governor lever 52
- Blower wash 53
- Turbocharger 53
- Air inlet 53
- For 4LHA-HTZP/-DTZP/-STZP 54
- Direction of impeller 55
- blades 55
- Direction of shaft rotation 55
- Sea water pump 55
- Direction of rotation 55
- 6. TROUBLESHOOTING 57
- Trouble 58
- Probable Cause Measure 58
- Reference 58
- 7. SYSTEM DIAGRAMS 59
- ：Optional 60
- 4LHA-DTP/-STP 61
- 7.2 Wiring diagram 63
- Color coding 64
- Starter Switch 65
- WARRANTY SERVICE 66
- Date of purchase 67
- User's record 67
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