Cartridge Seal Inspection And Replacement; Opening Videoray's Main Housing - VideoRay PRO 3 User Manual

VideoRay Pro 3 User's Manual
2) Following the removal of the appropriate propeller guard, the propeller can be taken off by first loosening
the propeller locking nut (use 7mm wrench), then removing the propeller by unscrewing it from the
propeller shaft. Replacement is accomplished by reversing this process. Care must be taken to maintain
a 1/32" to 3/64" clearance between the propeller locking nut and the seal spacer to prevent jamming.
Note: Use a piece of rubber (kitchen jar lid opener works great) or rag to help remove a stuck nozzle or
propeller
8.6

CARTRIDGE SEAL INSPECTION AND REPLACEMENT

Your VideoRay has been equipped with our new, patent-pending cartridge design. This means that the
seals that prevent water from entering the submersible through the motor shafts can be replaced rapidly and
without tools. It also means that you can check for impending seal failure easily.
There are two "Bal Seals" on the shaft of each of the three thrusters on a VideoRay. Between these two
seals is a oil chamber. The cartridge is constructed of machined acrylic and brass, and contains the two
seals and the oil.
To change the cartridges:
1) Remove the nozzle (no tools are needed, just unscrew the nozzle).
2) Use a 7mm wrench to hold the propeller nut and unscrew the propeller.
3) Unscrew the nut and remove the single nylon washer.
4) Use a screwdriver to gently pry out the seal cartridge.
5) Place the washer on top of the new seal cartridge and push it onto the shaft and into the cartridge
cavity.
6) Screw on the nut by hand until is tight against the seal, then back it off 2 turns.
7) Hold the nut with the wrench and tighten the propeller.
8) Replace the nozzle:
Note: If the end seal pops out during install, carefully replace it with the spring facing out.
We recommend that you check for the presence of water in the oil bath every 10-20 hours of usage. This
interval should be on the shorter end if you use your VideoRay in deeper water – in excess of 60 feet or 20
meters – for extended periods. If there is water in the oil, the cartridge should be replaced within the next
10-20 hours.
8.6.1

OPENING VIDEORAY'S MAIN HOUSING

Note: To perform this operation, it is necessary to remove the Skid System first by un-screwing the 4
retaining screws.
1) Prior to and that a clean, dry work area is available.
2) Remove opening the main housing, it is important to ensure that VideoRay is clean and dry, the flotation
block by removing the screw.
3) Remove the main housing tie-rods by first loosening, then removing the tie-rod acorn nuts and regular
nuts at the rear that serve as jam nuts. The acorn nuts at the front are permanently Loctited on and can be
used to rotate the rod with a socket driver. Next, pull the tie-rods from their guide holes in the front and
rear main port retainers. Remove the main port retaining rings.
4) Both the front and rear main port domes are sealed with O-rings and, while some resistance may be
encountered due to a slight internal vacuum, they can be removed by carefully pulling them out of the
main housing. The domes have tabs on them to facilitate dome removal. You can use the tool kit nut
driver or other blunt tool to apply pressure on these tabs to remove the domes. Do not pry the domes off
with a screwdriver as this can damage the domes and the seal surface.
November, 2007
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