Concert Grand Trucks

Alan Crane alan.crane@wichita.edu
Fri, 28 Mar 2003 11:25:48 -0600


At 08:40 AM 3/28/03 -0600, Avery Todd wrote:
>Does anyone have any suggestions on the best/easiest way to install
>a 9' grand onto a grand truck?

Hi Avery,

I, like Wim, use the Susan Graham jack-on-the-box but mine is the model 
currently sold by Paul Janses & Son (its actually a "jack-in-the-box"... it 
works the same but transports & sets up easier than Susan Graham's design).

I lift one corner of the piano high enough to remove the caster and 
position the truck under it (optionally, I remove the leg and take the 
caster, and socket if need be, off more easily _______ this is a good 
opportunity to check the integrity of the leg itself as well as leg plates, 
cam locks, etc.... always a good idea!).

All the truck bolts are loose at this point, except for caster bolts which 
are tight.

Before lowering the piano leg onto the truck, I place a couple of 2x4 
blocks under the end of the truck arm (directly beneath where the leg will 
sit) to support it high enough so that the truck casters will be slightly 
off the floor when all three piano legs are lowered in place.  This 
procedure is repeated for each of the remaining two legs.
At this point, the piano is on the truck and the truck is resting on the 
2x4 blocks under each arm end.  The truck casters are slightly off the 
floor and the whole truck mechanism can be adjusted in/out and back/forth 
to reposition it, if needed.  After that, all the truck bolts are tightened 
and the arm ends are raised one by one (I use a couple of extra 2x4 blocks 
and a longer length as a lever under the truck arm next to the caster) just 
high enough to remove the blocks and lower the truck caster to the floor.
That's how I do it solo and it works pretty well.

I use the same blocking procedure if I need to make repairs on a leg of a 
piano already mounted on a truck (though sometimes only one of the other 
truck arms needs to be blocked up in that case).

On a related note:  in the event that I need a grand on a truck to remain 
stationary for some reason, I merely take the above mentioned lever and 
blocks, and block up the ends of the truck arms in the same manner right 
beneath the legs.  If the blocks are sized right, it doesn't even raise the 
pedals very much at all.



Regards,

Alan Crane, RPT
School of Music
Wichita State University
alan.crane@wichita.edu


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