Westerbeke BCD 4.4KW Návod k obsluze Strana 25
- Strana / 94
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
Exhaust Back-Pressure
The exhaust discharge hose must be
of
adequate size and
minimal run
to
prevent excessive exhaust back-pressure.
Exhaust back-pressure should be checked before a gener-
ator is put into service. (Refer
to
the illustration.) Excessive
back-pressure will affect the engine's performance and the
generator's power output.
To measure for back-pressure, use a mercury manometer, a
pressure gauge,
or
a water column. A boatyard or marine
mechanic should have a manometer
or
a pressure gauge.
Measure the engine's back-pressure
at
the exhaust elbow
while the generator is under a
full load.
Refer
to
the pressure specifications listed below.
A water column can be made
by
taking a clear plastic tube
and taping one end
of
the tube along a yardstick and fitting
the other end
of
the tube with a 1/4 inch NPT (National Pipe
Tap) pipe fitting.
Measure the engine's back-pressure at the exhaust elbow
while the generator is under a
full load.
Dimension A cannot exceed 39 inches
of
water.
Back pressure, as measured
by
a gauge instrument, should
not exceed the following specifications:
Specifications:
2 inches
of
mercury
27
inches
of
water in a water column
15.6 ounces
PSI
1.0
PSI
Exhaust
Elbow
Exhaust
Excessive back-pressure can be caused
by
a small diameter exhaust hose, a small muffler, sharp bends in
the exhaust hose, improper fittings, water pockets, and a high volume
of
water in the exhaust system due
to
the length
of
the exhaust discharge hose. The use
of
elbows and fittings in the exhaust discharge hose's
routing should be
limited since these will create flow restrictions and contribute
to
exhaust back-pressure.
The generator's exhaust system must be separate from any other engine's exhaust system. Dry portions
of
the exhaust system between the engine's exhaust manifold and the water injected exhaust elbow must be
insulated
to
hold in the heat.
Westerbeke Generators
22
- 'WESTERBEKE 1
- CALIFORNIA 2
- WESTERBEKE 5
- .Fr~shJII(~ter 9
- E"~h~ust 10
- 'SwItch 11
- Marine Diesel Generator 12
- Westerbeke Generators 12
- GENERAL SPECIFICATIONS 13
- 'r<YV 15
- 15 Westerbeke Generators 18
- + 142 psi - 0 psi 20
- + 1 Okg/cm 20
- Rigging and Lifting 22
- Exhaust 25
- P"L"PP~R 26
- CDVE" 26
- Exhaust Elbow Installation 27
- 25 Westerbeke Generators 28
- DEflECTION 29
- LONGEST 29
- PREHEAT 32
- ;R~~E~Trl 33
- Description 34
- Starting System 34
- (NORMAL 35
- 3. Check 36
- XNSTALLATXON 39
- XNSTRUCTXONS 39
- ELECTRIC 41
- -t>I 43
- Integral Control/er (I.C.) 44
- PRESSU~E 45
- "---J 46
- "iNS'i'RuME 47
- 5;..:~-("~~~ 48
- COOLANT 51
- RECOVERY TANK 51
- 51 Westerbeke Generators 54
- _________ 57
- I RECTIFIER 57
- 110v 50 Hz 58
- LI'I 59
- CAUTION; 61
- _-"" 63
- + ) terminal on the 66
- + and - ground 67
- 1. Fuel starvation 68
- 67 Westerbeke Generators 70
- + 140 psi 71
- 3 are tightened between 50.6 72
- Y 1 i n d e r 74
- General 78
- Fresh Water Cooling System 78
- Lubrication System 78
- 75 Westerbeke Generators 78
- 'rWJ 86
- Generators 87
- YOUR NOTES 93
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