Operation Manual

BX25, RCK54(P)-23BX, RCK60B-23BX, LA240, BT601, WSM
ENGINE
Push Rod Alignment
1. Place the push rod on V blocks.
2. Measure the push rod alignment.
3. If the measurement exceeds the allowable limit, replace the push
rod.
0.25mm
Push rod alignment
Allowable limit
0.0098 in.
W11220210
i 3TMABAB1 P062A
Oil Clearance between Tappet and Tappet Guide Bore
1. Measure the tappet 0.0. with an outside micrometer.
2. Measure the 1.0. of the tappet guide bore with a cylinder gauge,
and calculate the oil clearance.
3. If the oil clearance exceeds the allowable limit or the tappet is
damaged. replace the tappet.
3EEABAB1P124A
Oil clearance between
Factory spec.
0.016 to 0.052 mm
0.00063 to 0.00205 in.
tappet and tappet guide
bore
Allowable limit
0.10 mm
0.0039 in.
Tappet
0.0.
Factory spec.
17.966 to 17.984 mm
0.70732 to 0.70803 in.
Tappet guide bore
1.0. Factory spec.
18.000 to 18.018 mm
0.70866 to 0.70937 in.
W11231410
(2) Timing Gears
Timing Gear Backlash
1. Set a dial indicator (lever type) with its tip on the gear tooth.
2. Move the gear to measure the backlash. holding its mating gear.
3. If the backlash exceeds the allowable limit, check the oil
clearance of the shaft and the gear.
4. If the oil clearance is not proper. replace the gear.
Backlash between idle
Factory spec.
0.043 to 0.124 mm
0.00169 to 0.00488 in.
gear and crank gear
Allowable limit
0.15 mm
0.0059 in.
Backlash between idle
gear and cam gear
Factory spec.
Allowable limit
0.047 to 0.123 mm
0.00185 to 0.00484 in.
0.15 mm
0.0059 in.
Backlash between idle
gear and injection pump
gear
Factory spec.
Allowable limit
0.046 to 0.124 mm
0.00181 to 0.00488 in.
0.15 mm
0.0059 in.
Backlash between oil
pump drive gear and
crank gear
Factory spec.
Allowable limit
0.041 to 0.123 mm
0.00161 to 0.00484 in.
0.15 mm
0.0059 in.
W11264830
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