Kohler 3.5CFZ User Manual Page 69
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TP-5695 12/93 Installation 6-7
Cooling Systems
General
The following features are necessary in the cooling
system.
An intake thru-hull strainer (seacock cover) must be
screened to prevent entry of foreign objects and must
not be aligned (in relation to direction of travel) with the
propulsion engine intake. See Figure 6-11. The
recommended thru-hull strainer should be flush
mounted. Strainers with slotted holes must be installed
with their slots parallel to the direction of vessel
movement. The area of the strainer opening(s) mustbe
equal to or greater than the inside diameter of the
waterline hose to the seawater pump.
An intake thru-hull strainer must not be of the scoop or
cup design. This style can cause a ramming effect and
force water upward, past the seawater pump, and into
the engine cylinders when the vessel is moving and the
generator set is shut down. Hull designs incorporating
sea chests are also not suitable for intake thru-hull
strainers. A sea chest is a concave molded-in-the-hull
chamber that is also aligned to the direction of travel. A
sea chest configuration applies a positive pressure
similar to a scoop-type thru-hull strainer.
A seacock istobe mounted to hull, assembled ontothe
intake and accessible for operation. Figure 6-12 shows
a typical installation. Install thecanvas on the outside of
the hull, and the canvas or rubber packing on the inside
of the hull.
If caulking is used to seal the seacock, be sure not to
apply an excessive amount. Excess caulk can cause
improper water flow and in some cases develop a
barrierwhichcanforcewaterupward,pasttheseawater
pump, and into the engine cylinders when the vessel is
moving and generator set is shut down.
NOTE
Intakes are positioned in relation to vessel travel
so neither will be in the wake of the other.
1
2
4 3
1-789
1. Generator Set Intake
2. Propulsion Engine
Intake
3. Aft
4. Fore
Figure 6-11. Intake Strainer
1
2
3
4
1. Inside Packing
2. Outside Packing
3. Seacock Cover
4. Direction of Vessel
Movement
5. Typical Intake Thru-Hull
Strainers
5
1-789
Figure 6-12. Seacock Installation
- Operation and 1
- Installation Manual 1
- California Proposition 65 2
- Table of Contents 3
- HAZARDOUS VOLTAGE/ 4
- ELECTRICAL SHOCK 4
- EXHAUST SYSTEM 5
- FUEL SYSTEM 7
- ACCIDENTAL STARTING 8
- MOVING PARTS 8
- HOT PARTS 8
- ENGINE BACKFIRE/FLASH FIRE 9
- HAZARDOUS NOISE 9
- Reference Material 11
- Commercial Vessels 12
- Additional References 12
- Routine Service Parts 13
- Glossary of Abbreviations 14
- Section 1. Specifications 16
- Generator 17
- Engine (Continued) 19
- Accessories 20
- Service Views 21
- Section 2. Operation 22
- Controller 23
- Starting 24
- Stopping 24
- Circuit Protection 25
- Engine Safety 25
- Shutdown Switches 25
- High Water Temperature 26
- Shutdown Switch 26
- High Exhaust Temperature 26
- Remote Panels (Optional) 27
- Remote Start and Four-Meter 28
- Panel Kit 28
- Service Schedule 30
- Service Schedule (Continued) 31
- Lubrication System 32
- Adding Oil 33
- Oil Change/Oil Filter Change 33
- Fuel System 34
- Fuel Pump Screen 35
- Carburetor/Choke Lubrication 36
- Carburetor Adjustments 36
- Ignition System 37
- 1. 0.028--0.031 in 39
- (0.7--0.8 mm) Gap 39
- 2. Spark Plug Electrodes 39
- Cooling Systems— 40
- Closed/Heat Exchanger 40
- Flushing and Cleaning 42
- Anticorrosion Zinc 44
- Air Cleaner and 45
- Mixing Elbow 45
- Cleaning 46
- Checking Electrolyte Level 46
- Checking Specific Gravity 46
- Charging 47
- Valve Adjustment 48
- Governor 50
- Wattage Requirements 51
- Generator Service 51
- Storage Procedure 52
- Section 4. Troubleshooting 53
- Electrical System 55
- 246482-D 57
- Electro Switch 59
- (Early Rectangular Design) 59
- (Newer Round Design) 59
- Configuration--Figure 5-4 60
- Figure 5-5 (Single Pole) 60
- 120/240- or 110/220-Volt 61
- Configuration--Figure 5-6 61
- Section 6. Installation 63
- Appliance Loads 64
- Kilowatt Derating 64
- TOTAL HOURS 65
- Fuel Systems 67
- Anti-Siphon Provisions 68
- Fuel Lines 68
- Fuel Consumption 68
- Cooling Systems 69
- Exhaust Systems 71
- Electrical Systems 74
- 1. Battery Positive (+) 75
- Connection 75
- 2. Battery Negative (--) 75
- ADV-5792-D 77
- TP-5695 12/93 81
- PRINTED IN U.S.A 81
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