PUMP GP-PISTON 1687873 - Caterpillar

Introduction
When the words "use again" are in the description, the specification given can be used to determine if a part can be used again if the part is equal to or within the specification given, use the part againWhen the word "permissible" is in the description, the specification given is the "maximum or minimum" tolerance permitted before adjustment, repair and/or new parts are needed.A comparison can be made between the measurements of a worn part and the specifications of a new part to find the amount of wear. A part that is worn can be safe to use if an estimate of the remainder of its service life is good. If a short service life is expected, replace the part.This manual contains general, operation, maintenance, troubleshooting and disassembly and assembly information.Illustrations guide the operator through the correct procedures of checking, starting, operating and stopping the marine transmission.Operating techniques outlined in this publication are basic. Variations in this procedure can occur with installation.Your safety and the safety of others depends upon care and judgment in the operation of this equipment. A careful operator is good insurance against an accident.Some illustrations and photographs in this publication may show details or attachments that may be different from your installation. Also, guards and covers may have been removed for illustrative purposes.Continuing improvement and advancement of product design may have caused changes to your marine transmission which may not be covered in this publication.Whenever a question arises regarding your marine transmission, or this publication, please consult your authorized Caterpillar dealer for the latest available information.Marine Transmission Identification
Marine transmissions are identified by part numbers, gear models and input/output shaft direction of rotation.This information is shown on the information plate located on the marine transmission.Ordering Parts
Quality replacement parts are available from authorized Caterpillar dealers throughout the world. Their parts stocks are up to date and include all parts normally required to protect your investment in these products.When ordering parts, your order should specify the marine transmission serial number, type (model number), direction of output shaft rotation and quantity. If in doubt about the marine transmission number, please provide your dealer with a complete description of the needed item.Preventive Maintenance And Troubleshooting
Frequent reference to the information provided in this manual regarding daily operation and limitations of this equipment will assist in obtaining trouble free operation. Schedules are provided for the recommended maintenance of the equipment.In the event a malfunction does occur, a trouble shooting guide is provided to help identify the problem area, and list information that will help determine the extent of the repairs necessary to get a unit back into operation.Lifting Bolt Holes
Most marine transmissions have provisions for attaching lifting bolts. The holes provided are always of adequate size and number to safely lift the marine transmission.
These lifting points must not be used to lift the complete power unit. Lifting excessive loads at these points could cause failure at the lift point (or points) and result in damage or personal injury.
Select lifting eye bolts