3-2 CHAPTER 3 Preparation for UseSeries 5000 Sonar System Operations and Maintenance Manual P/N 11210060, Rev. 13.03.1.3 Unpacking the TowfishThe towfish is shipped in a reusable wooden crate. Open the crate and inspect thetowfish for damage. If there is any damage or if any items are missing,immediately contact L-3 Communications Klein Associates, Inc. or your L-3 Kleinsales representative. Record the serial number of the towfish. The serial numbercan be found on the towfish tow bracket. Save the crate for use when reshippingthe towfish.3.1.4 Unpacking the Tow CableThe tow cable is shipped on a cable palette or reel. Inspect the cable for damage. Ifthere is any damage or if any items are missing, immediately contact L-3Communications Klein Associates, Inc. or your L-3 Klein sales representative. TheTPU end of the cable has a Type N connector. The towfish end has a stainless steeltow shackle and a molded waterproof connector. After removing and inspectingthe tow cable, save the cable reel or palette for future use when reshipping the towcable.3.2 Mechanical Installation of the TPU and Computer3.2.1 LocationThe TPU is partially sealed against spray and inclement weather. However, forequipment longevity, it is best to locate the TPU in a sheltered area. The computershould be located near the TPU, and it should be protected against spray andinclement weather and located in a sheltered area. For operational convenience andsafety, this area should be close to or in ready communication with the bridge andthe winch operator. The sonar operator must have the ability to alert the helmsmanor winch operator if hazardous operational conditions develop. Make sure that thelocation of the TPU and the computer provides adequate clearance for personnelaccess.3.2.2 MountingThe TPU may be mounted on a table or mounted in a 48.3 cm (19 in.) rack (notprovided). You should also secure the computer modules in a way that will protectthem as much as possible.3.2.3 Isolating from Shock and VibrationThe TPU and the computer should not be subjected to excessive or unnecessarypounding, shock or vibration. If the TPU is rack mounted, and the vessel is ridingheavily in the seas or engine vibration is excessive, a thick layer of foam rubber orother resilient material may be used to isolate the TPU from the rack.
