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deviation value marks, which are F, R and P respectively; they represent the difference
between the actual size and the theoretical size on the housing of the underwater unit.
For example, the mark P is followed by +3, which means that the actual size is 0.03 mm
more than the theoretical size; If no number is engraved after the deviation value, then P is
regarded as 0.
Pinion shim
1. Check the P value marked on the underwater unit.
2. Attach the drive shaft to the special tool. Install the pinion and lock the pinion nut
according to the specified torque.
Specified torque: 95 Nm
3. Measure the clearance between special tool and pinion with stopper gauge
Calculate the thickness T3 with the formula.
Formula: T3=M3－(P/100)
4. Shims that can be selected.
0.10, 0.12, 0.15, 0.18, 0.3, 0.4, 0.5 mm
Note:
The thickness of the shim can be 0~0.05 thicker than T3, and choose the closest size.
Forward gear shim
1. Check the F value marked on the underwater unit.
2. Turn the outer ring of the forward gear bearing so that the rollers fall completely into
the bearing outer sleeve.
3. Measure the bearing height and calculate the thickness T1 with the formula.
Formula: T1=22.75＋(F/100)－M1
Note:
When measuring the thickness, three points are measured. Take the average value.
4. Shims that can be selected.
0.10, 0.12, 0.15, 0.18, 0.3, 0.4, 0.5 mm
Note:
The thickness of the shim can be 0~0.05 thinner than T1, and choose the closest size.
Reverse gear shim
1. Check the R value marked on the underwater unit.
2. Measure the dimension M
2
as shown in the figure with a depth gauge:
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