Cub Cadet 8454 - Manual (Page 74)

CHAPTER 2 8454
2-52 D569-W02 May-2003
569W297A
569W298A
569W296A
(1) Injection Pump Gear (2) Snap Ring
(A) Clearance
(D) Injection pump gear side clearance
1. Pull the fuel camshaft and pull the injection pump
gear (1) to each end.
2. Measure the clearance (A) between the injection
pump gear (1) and the snap ring (2) on the fuel
camshaft.
3. If the clearance exceeds the allowable limit, check
the gear, the bearing and the key.
Side
clearance Factory
spec.
Allowable
limit
0.15 ~ 0.57 mm
0.0059 ~ 0.0224 in.
0.9 mm
0.035 in.
(F) Replacing idle gear bushings
1. Press out the bushings using an idle gear bushing
replacing tool.
2. Clean the bushings and the bore, and apply oil to
them.
3. Press in the bushing using the replacing tool.
(E) Idle gear oil clearance
1. Measure the idle gear shaft O.D. with an outside
micrometer.
2. Measure the idle gear bushings I.D. with an inside
micrometer.
3. If the clearance exceeds the allowable limit, replace
the bushing.
Oil
clearance
Shaft
O.D.
Bushing
I.D.
Factory
spec.
Allowable
limit
Factory
spec.
Factory
spec.
0.025 ~ 0.066 mm
0.00098 ~ 0.00259 in.
0.1 mm
0.004 in.
37.959 ~ 37.975 mm
1.4944 ~ 1.4950 in.
38.000 ~ 38.025 mm
1.4961 ~ 1.4970 in.