CYLINDER GP-RIPPER 1553653 - Caterpillar

7211 (66X),
7221 (98X),
7231 (17W),
7241 (39E),
7251 (74E),
7261 (89B),
7271 (36W),
D399 (91B),
D398 (67B),
D379 (69B),
D353 (47B),
D349 (62P),
D348 (38J),
3208 (75V),
3304 (5B),
3306 (67D),
3406 (91U),
3408 (99U),
3412 (60M) IMPORTANT: Before alignment is started, the following conditions must be met:a) The companion flange must be installed on the propeller shaft and checked for concentricity, see page 2.b) The ship must be in the water with all permanent ballast in place.c) The fuel, water and temporary ballast tanks must be filled to normal operating levels.d) All major machinery over 1000 lb (450 kg) must be installed or simulated by equivalent weights appropriately located.e) The propeller shaft must be centered, blocked, and accurately located with respect to its final fore and aft position.General Information
(A) Face And Bore Alignment
(1) The terms bore alignment (A) and face alignment (B) are used throughout this instruction. Parallel alignment and bore alignment are synonymous, as are angular alignment and face alignment. (2) Parallel or bore misalignment occurs when the centerlines of the driven equipment and the driving equipment are parallel but not on the same line as shown above. (3) Angular or face misalignment occurs when the centerlines of the driven equipment and the driving equipment are not parallel as shown above. (4) Face runout refers to the distance the face of the hub is out of perpendicular to the shaft centerline as shown above. Flange face runout must be no more than .005" (0.13). (5) Bore runout refers to the distance the centerline of the bore of the hub is out of concentricity with the centerline of the shaft as shown above. Pilot bore runout must not exceed .005" (0.13).(B) Indicator Readings
(1) Since all dial indicators do not indicate plus (+) in the same direction, it is necessary that a standard be established for the purpose of clarity in this instruction. In this instruction a plus (+) reading means that the tip of the indicator moved into the dial indicator; a minus (-) reading means that the tip of the indicator moved out of the dial indicator. Before taking any indicator readings, check the dial indicators being used to determine which is the plus (+) direction. If the plus (+) direction is different than the standard used in this instruction, keep this in mind when taking dial indicator readings.(2) When comparing two plus (+) indicator readings, the larger numerical reading is more than the smaller numerical reading. However, when comparing two minus (-) indicator readings, the larger numerical reading is less than the smaller numerical reading. In both cases, the indicator reading becomes less as the tip of the indicator moves out of the dial indicator.(3) The Total Indicator Reading (TIR) is the total amount of movement of the indicator needle. The TIR is always a positive value even though one or both of the readings are negative. For example: If the indicator reading varied from -10 to +5, the TIR was 15. If the indicator reading varied from -5 to -15, the TIR was 10. (4) Indicator readings are taken at four