2-S1
F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
TRANSMISSION
1. TROUBLESHOOTING
HYDROSTATIC TRANSMISSION SECTION
W1022927
Symptom Probable Cause Solution
Reference
Page
System Will Not
Operate in Either
Direction
Oil level is low Fill oil to proper level G-7, 2-S10
Control linkage defective (Speed control pedal to
speed change arm)
Repair control
linkage
2-S12, S14,
S16
Charge pressure is too
low
• Charge relief valve
defective
Replace charge relief
valve
2-S8, S23
• Oil filter cartridge
clogged
Replace oil filter
cartridge
G-18
• PTO charge relief
valve defective
Replace PTO charge
relief valve
2-S9, S19
Check and high pressure relief valve defective Replace check and
high pressure relief
valve
2-S9, S22
HST component parts defective Replace HST
assembly
2-S19, S22
to S23
Vibration and Noise Oil level is low Fill oil to proper level G-7, 2-S10
Control linkage defective (Speed control pedal to
speed change arm)
Repair control
linkage
2-S12, S14,
S16
Charge pressure is too
low
• Charge relief valve
defective
Replace charge relief
valve
2-S8, S23
• Oil filter cartridge
clogged
Replace oil filter
cartridge
G-18
• PTO charge relief
valve defective
Replace PTO charge
relief valve
2-S9, S19
Check and high pressure relief valve defective Replace check and
high pressure relief
valve
2-S9, S22
HST component parts defective Replace HST
assembly
2-S19, S22
to S23
Loss of Power Oil level is low Fill oil to proper level G-7, 2-S10
Control linkage defective (Speed control pedal to
speed change arm)
Repair control
linkage
2-S12, S14,
S16
Charge pressure is too
low
• Charge relief valve
defective
Replace charge relief
valve
2-S8, S23
• Oil filter cartridge
clogged
Replace oil filter
cartridge
G-18
• PTO charge relief
valve defective
Replace PTO charge
relief valve
2-S9, S19
Check and high pressure relief valve defective Replace check and
high pressure relief
valve
2-S9, S22
HST component parts defective Replace HST
assembly
2-S19, S22
to S23