Kubota W5021-T User Manual

S.1 ENGINE
W5019W5021 WSM,10481
0617F046
(1)
1.5 to 1.8 mm radius (0.0591 to 0.0709 in. radius)
Correcting Crank Pin
If the standard-size connecting rod cannot be
employed due
to excessive wear of the crank pin, use
an undersize connecting rod.
For undersize
connecting rod use, be sure to
correct the crank pin.
1. Grind the corner radius (1) of the crank pin
precisely.
2. The crank pin surface must be fine-finished to
higher than *
[ Undersize crank pin (0.25 US)]
Undersize crank pin Factory
25.225
to25235 mm
0.0.
spec. 0.99311 toO 99350 in.
[ Undersize crank pin (0.50 US)]
Undersize crank pin Factory 24.975 to 24.985 mm
0.0.
spec.
0.98327
to 0.98366 in.
Side Clearance of Connecting Rod on Crank Pin
1. Set the connecting rod to the crankshaft.
2. Measure the side clearance of connecting rod with
a feeler gauge.
3. If the side clearance exceeds the allowable limit,
replace the connecting rod.
Side clearance of
Factory
spec.
0.2toO.9mm
0.008
to 0.035 in.
connecting rod
on
crank pin
Allowable
limit
1.5mm
0.059 in.
0617P025
Side Clearance of Crankshaft
1. Set a dial indicator to the crankshaft.
2. Measure the side clearance by moving the
crankshaft.
3. If the side clearance exceeds the allowable limit,
adjust with shims.
Side clearance of
Allowable 0.2mm
crankshaft
limit
0.008 in.
(Reference)
• Thickness
of adjusting shims: 0.5 mm (0.020 in.)
0.6 mm (0.024 in.)
0.8 mm (0.031 in.)
0.9 mm (0.035 in.)
1.0 mm (0.039 in.)
1.2 mm (0.047 in.)
5-87

Kubota W5021-T Specifications

General

Brand	Kubota
Model	W5021-T
Category	Lawn Mower
Language	English