wsm RC72-27B Workshop Manual page 40

RCK54-75B· RCK54/60-24B· RCK60/RC72-27B WSM, 17031
TROUBLESHOOTING
SERVICING
Symptom Probable Cause Solution
Reference
Page
Blade Does Not Turn • Mid-PTO system malfunctioning Check transmission
-
• Broken mower belt
Replace mower belt S-3
Blade Speed Is Slow
• Loosen mower belt
Replace mower belt S-3
or tension spring
• Clogged grass
Remove grass -
• Flattened out or worn cup washer Replace cup washer S-6
Cutting Is Poor
• Worn or broken mower blade
Sharpen or replace S-3
mower blade
• Loosen mower blade screw
Retighten mower S-6
blade screw
• Cutting height improper
Adjust cutting height
S-4,5
Mower Is Not Lifted • Broken linkage system Replace linkage
-
system
• Trouble of hydraulic system
Check hydraulic
-
system
17031800010
SERVICING SPECIFICATIONS
Item Factory Specification
Allowable Limit
Pinion Shaft (without Mower Belt) Turning Force Less than 117.7 N
-
12.0 kgf
26.51bs
Turning Torque Less than 1.47 N·m
-
0.15 kgf·m
1.08 ft-Ibs
Bevel Gears in Gear Box
Backlash 0.10 to 0.20 mm
0.40 mm
RCK54-75B 0.0039 to 0.0078 in. 0.0157 in.
RCK54-24B
RCK60-24B
Backlash 0.13 to 0.25 mm 0.40 mm
RCK60-27B 0.0051 to 0.0098 in. 0.0157 in.
RC72-27B
17031800020
S-1