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American Turbine SD-312 User Manual

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THE POWER IS IN THE PUMP!
OWNERS MANUAL
MODELS: 12-S & 12-TD
MODELS: AT-309 TJ-309 SD-309 SD-312
MODEL: J120-AT
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American Turbine SD-312 Specifications

General IconGeneral
BrandAmerican Turbine
ModelSD-312
CategoryWater Pump
LanguageEnglish

Summary

Before Operating Your Jet Boat

Boat Horsepower Capacity

Discusses the importance of matching engine power to boat capacity to prevent accidents and damage.

Boater's Responsibilities

Outlines the operator's duty for safe operation and passenger instruction before the trip.

Pre-Operation Inspection Checklist

Thrust Bearing Lubrication

Details the procedure and frequency for lubricating the thrust bearing before operation.

Hand Hole Cover Check

Instructions to check if the hand hole cover is tightly fastened for safety.

Steering System Check

Guide to check steering operation by verifying nozzle movement with the engine off.

Reverse Shift Control Operation

How to check the reverse bucket's position in full reverse, forward, and neutral.

Throttle Operation Check

Verifies the smooth and proper operation of the throttle control lever.

Transom Seal Integrity

Checks for leaks at the housing seal to the boat or the housing seal to the bowl.

Additional Pre-Operation Checks

Packing Gland Inspection & Adjustment

Instructions for inspecting and adjusting packing gland nuts for proper seal compression.

Weep Hole Seal Inspection

How to check the weep hole for mechanical seal condition and potential obstructions.

Engine Cooling Connections

Verifies that all engine cooling hose connections are secure and leak-free.

Operational Procedures and Break-In

Trailer Launching and Starting

Guidance on safely launching the boat from a trailer and starting the engine properly.

Break-In Period Significance

Explains the necessity of a break-in period for component longevity and optimal performance.

Initial Gland and Seal Checks

Reiterates inspection of packing glands and weep holes during the initial break-in period.

General Maintenance and Lubrication

Lubrication Intervals and Types

Details lubrication intervals and recommended grease for thrust and bowl bearings.

Shaft Packing Adjustment

How to adjust shaft packing for proper compression to prevent leaks and heat damage.

Reverse Components Inspection

Inspection of reverse bucket function, cable security, and potential adjustments.

Maintenance Checks and Troubleshooting

Steering Cable Connection Checks

Checks steering cable connections on each trip for overall safety and proper function.

Hand Hole Cover Tightness

Advises periodic checks of the hand hole cover tightness while the boat is on land.

Lack of Performance Troubleshooting

Troubleshooting pump over-revving due to impeller obstructions like leaves or debris.

Impeller Information and Selection

Critical Safety Guidelines

Retrieving Skiers Safely

Recommends shutting off the engine when retrieving downed skiers to prevent accidents.

Ski Rope Hazards

Advises avoiding ski ropes near the pump to prevent entanglement and injury.

Shallow Water Operation Risks

Warns about potential damage to internal parts from rocks in shallow water.

Braking At Speed Caution

Advises conservative use of braking action due to its effectiveness being similar to emergency stops.

Engine Cooling Without Water

Prohibits operating the engine out of water to prevent severe damage to the engine and jet drive.

Limited Warranty Terms

Warranty Coverage Details

Details the duration and scope of the warranty for new jet drive units against defects.

Warranty Claim Process

Explains how to make a warranty claim by returning defective parts freight prepaid.

Liability and Design Rights

States liability limits and reserves the right to change product designs.

Warranty Exclusions and Limitations

Non-Covered Items

Lists items not covered by the warranty, such as normal wear, misuse, or non-manufacturer parts.

Damage and State Variations

Discusses limitations on consequential damages and acknowledges state-specific variations.

Optional Steering Assemblies

Understanding Your Boat Performance

Tachometer as Performance Indicator

Emphasizes the tachometer as a key instrument for monitoring engine RPM and diagnosing performance issues.

Performance Troubleshooting: Hull and Jet Unit

Hull Related Issues (Normal RPM)

Addresses performance problems when maximum RPM is normal, pointing to hull issues like overload or drag.

Jet Unit Issues (High RPM)

Identifies causes for high RPM with low thrust, such as blockages, impeller wear, or stator vane damage.

Performance Troubleshooting: Engine and Noise

Engine Related Issues (Low RPM)

Explains that low RPM typically indicates an engine problem related to fuel, air, or ignition.

Excessive Noise Causes

Details common causes of excessive noise like cavitation, bearing issues, or exhaust back pressure.

Troubleshooting Excessive Noise

Cavitation and Moan/Whine Identification

Describes cavitation sounds and the causes of bearing-related moans or whines in the jet unit.

Warranty Registration Form

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