Toro Reelmaster 5100-D - Cutting Unit(S) will Not Raise

________________________________________________________________________________________
_____________________________________________ ________________ ______ ________________ ______ ________________ ___________________________________
_____________________________________________ ________________ ______ ________________ ______ ________________ ___________________________________
_____________________________________________ ________________ ______ ________________ ______ ________________ ___________________________________
_____________________________________________ ________________ ______ ________________ ______ ________________ ___________________________________
_____________________________________________ ________________ ______ ________________ ______ ________________ ___________________________________
_____________________________________________ ________________ ______ ________________ ______ ________________ ___________________________________
_____________________________________________ ________________ ______ ________________ ______ ________________ ___________________________________
__
__ __ __ __ __ __
__ __ __ __ __ __
__ __ __ __ __ __
__ __ __ __ __ __
__ __ __ __ __ __
__ __ __ __ __ __
__ __ __ __ __ __
Cutting Unit(s) Will Not Raise
Cause Correction
One-way variable orifice closed - center and rear Open speed control valve.
cutt
ing units only - see Hydraulic Schematics.
Engine RPM too
low. Increase engine RPM to operating speed.
S7 not shifting. Do electrical diagnostics to make sure that voltage
is being applied to S7 and that there is no electrical
fault. See Chapter 5 - Electrical System.
Test solenoid coil. Replace if faulty. See Chapter 5 -
Electrical System.
Oil viscosity too high - run machine to warm up oil to
operating temperature.
Do cartridge valve service procedure for valve S7.
S3, S4, or S5 not shifting (See Hydraulic Schemat- Do electrical diagnostics to make sure that voltage
ics to see which valve controls what lift cylinders.) is being applied to solenoid for affected circuit and
that there is no electrical fault. See Chapter 5 - Elec-
trical System.
Test solenoid coil for v
alve of affected circuit. Re-
place if faulty. See Chapter 5 - Electrical System.
Do cartridge valve service procedure for valve in af-
fected circuit.
Interchange solenoid from affected circuit with an-
other similar valve (S3, S4, or S5) and check opera-
tion. Replace or repair affected valve if faulty.
R1 bypassing. Check relief pressure at port G
1 of valve block and
adjust valve if necessary.
Do cartridge valve service procedure for valve R1.
Replace R1 with a new valve.
Internal leakage in lift cylinder(s). Check lift cylinder(s) and repair or replace if faulty.
Lift arm pivots binding. Lubricate bushings. Inspect for damage. Repair or
replace damaged parts.
P1 pump section inefficient. Repair or replace pump.
Troubleshooting Page 4 - 22 Reelmaster
®
5100-D