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Old 28-02-2013, 15:09   #1
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Join Date: Feb 2013
Location: Howth, County Dublin, Ireland
Boat: Malo 36
Posts: 3
Yanmar/Kanzaki KM3A1 Gearbox

Would anyone have the maintenance manual for a Yanmar/Kanzaki gearbox - model KM3A1 (as opposed to model KM3A)? If so, perhaps you could help me.

In the section on "Adjustment of the Shifting Device", a formula is given for calculating the thickness of the shims to be used with the stopper bolt when re-assembling the shifting device after maintenance.

The fomula is given as: T = (H - L +1.25) +/- 0.1mm where:

"T" is the thickness of the shims
"H" is the length of the stopper bolt (from the neck to the end of the bolt)
"L" is the distance between the end of the lever shaft and the surface of the shifter

In one of the diagrams in this section, ranges are given for both "L" and "H". For the KM3A and KM4A (for both of which I have the maintenance manuals), the range for "L" is given as 36.32mm - 38.78mm. I'm looking for the range for "L" for the KM3A1.

My problem is that I'm getting a measurement of over 40mm when I reassemble my gearbox - so I'm trying to establish if the KM3A1 has a different range different to the KM3A and KM4A or if I've done something wrong.

Many thanks.

Tuadhmumhan is offline   Reply With Quote


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