Safety procedures for working on Volvo Duo Prop?

billh1963

Petty Officer 3rd Class
Joined
Oct 14, 2003
Messages
78
I finally bit the bullet and bought a new trim cylinder (since a seal kit isn't available) for my Duo Prop 290 outdrive.

The duo prop is the older Swedish built model where the trim cylinders are "inside" versus "outside". I don't have a manual but the procedure looks fairly straight forward. However, I have a couple of safety questions:

1. I'll be working with the drive unit tilted up. The port trim cylinder/ram is okay and I won't be working on it. I will be replacing the starboard unit. Should I use a block of wood or something to keep the drive tilted up? Any chance of it falling?

2. Will the cylinder I am replacing have any pressure on it? I am replacing the whole cylinder and it has several hydraulic lines coming in. When I am loosening the lines will fluid shoot out under pressure? Also, will removing the cylinder cause a loss of pressure to the other ram holding the drive unit up?

3. Without a manual I am working under the assumption that I just remove and replace the old unit. Am I missing anything?

Thanks!
 

DHPMARINE

Captain
Joined
Dec 16, 2003
Messages
3,688
Re: Safety procedures for working on Volvo Duo Prop?

The minute you loosen a hydraulic line or remove the cylinder that HEAVY dual prop will be on it's way down. If you have a finger (or hand in there) you won't be tilting it back up real soon one handed.I'd want to read the real Volvo manual before going further.

I'd at least be making a sturdy frame to support it.Or hang it from a chain,(not rope.)

DHP
 
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