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Water pressure.


Mechanics, let's say it's washing time again for your Chinook Chinook, indigenous people of North America
Chinook (shĭnk`, chĭ–), Native American tribe of the Penutian linguistic stock.
. You want to get it as clean as possible so you turn up the water pressure a notch. Don't!

When washing the FWD (Fast Wide Differential) Refers to a Fast Wide SCSI implementation that uses differential signaling. See SCSI.  and AFT combining transmission oil cooler on or off the bird, high pressure water can bend the cooler fins. Bent oil cooler fins mean air can't properly flow through the oil cooler when your aircraft is up and running.

That can cause elevated oil cooler temperatures and cause the OIL HOT light to illuminate on the caution advisory panel. Then your bird's transmission will run hotter than normal.

Low pressure water or a nozzle An orifice in an inkjet print head through which ink is sprayed onto the paper. Print heads with six thousand or more nozzles are common in today's printers.
Nozzle 
 that has a rinse or spray flow Spray flow

A special case of a two-phase (gas and liquid) flow in which the liquid phase is the dispersed phase and exists in the form of many droplets.
 is best, depending on what type of washer washer Orthopedics A flattened disk of metal with a central hole used to distribute stress under a screw head to prevent thin cortical bone from splitting; serrated washers are used to affix avulsed ligaments, small avulsion fractures or comminuted fractures to the  your unit uses. You can find washing instructions in TM 551520-240-23-1 and TM 1-1500-344-34.

Take the pressure off and wash the transmission oil cooler carefully so bent fins don't become a problem and high oil temps don't ground your bird.

'Course, always follow the TM and never use high pressure water when washing any portion of the bird because it can penetrate seals and connectors causing damage to components and systems.
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Title Annotation:CH-47D ...
Publication:PS, the Preventive Maintenance Monthly
Article Type:Brief Article
Geographic Code:1USA
Date:Apr 1, 2005
Words:193
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