Rayco RG25HD, Operator, Service, Maintenance, Parts Manual

Page: 43 / 72

RG25DH Operation • Service • Maintenance • Parts Manual
800.392.2686
43
Maintenance
6. Check the brake/clutch pedal to make sure that when the pedal is depressed that the idler pulley is releasing
the belt tension before it applies the brake. If this does not happen the unit will still be under a load and be
impossible to shift.
7. The final area to check would be for damaged or binding shift linkage.
Hard shifting with the engine off could be caused by:
1. Shift linkage out of adjustment.
2. Corrosion in the transaxle or transmission.
3. Damaged shift keys, gears, or shifter brake shaft.
4. Belt guides missing or improperly adjusted (see equipment manufacturer specs).
Unit seems to slip:
1. Check for proper belt adjustment (consult O.E.M. operator's manual).
2. Check for proper clutch/brake adjustment (consult O.E.M. operator's manual).
3. Check pulley condition and wheels for sheared or damaged keys.
4. Check drive belt condition, if glazed or worn, replace it.
5. Possible internal transmission damage. We suggest you contact a local Rayco Dealer .
Basic Gear Drive Troubleshooting -
continued
NOTE
Before troubleshooting any system problem, see original equipment manufacturer’s (O.E.M.) instructions.
Make your troubleshooting easier by preparing as follows:
• Work in a clean, well-lighted place.
• Keep proper tools and materials nearby.
• Keep an adequate supply of clean petroleum-based solvent.
To avoid carbon monoxide poisoning, make sure engine is outdoors in a well-ventilated area.
Some maintenance procedures cannot be performed until the vehicle wheels are secured and off
the ground. Failure to do so could result in death or serious injury to yourself and/or bystanders.
DO NOT attempt any maintenance procedures with the engine running. Doing so could result in
death or serious injury to yourself and/or bystanders.
Use care when performing inspection of the drive belt assembly including all vehicle linkage.
Failure to do so could result in death or serious injury to yourself and/or bystanders.
Troubleshooting Chart
Use of this troubleshooting chart will aid in determining the source of a problem; the hydrostatic transmission,
final drive or vehicle's belt drive and/or linkage systems.
TecumsehPower Hydrostatic Transaxle
Troubleshooting
Final Drive
Hydrostatic
Transmission
TecumsehPower and Peerless Transmission, Transaxle and Gear
SYMPTOM
PROBLEM CORRECTIVE ACTION
REDUCED POWER
Improper belt tension Belt worn, replace
Belt worn, glazed, or oil saturated Replace belt
Drive pulley worn
Replace pulley and belt
(See O.E.M. equipment manual)
Brake set too tight
Set brake adjustment
(See O.E.M. equipment manual)
Shifter linkage misadjusted or broken
Linkage damaged or loose, replace or adjust
(See O.E.M. equipment manual)
Fluid low in hydrostatic transmission Check and add fluid if low (Part No. 730228A)
Hydrostatic transmission bad Replace hydrostatic transmission
DIFFICUL
T
TO SHIFT
Linkage broken or bent
Repair or replace linkage
(See O.E.M. equipment manual)
Hydrostatic transmission pump seized Replace hydrostatic transmission
Hydrostatic transmission control friction
pack misadjusted
Replace friction pack washers, tighten nut
to 100 in. lbs. (11.2 Nm) loosen nut 4-turns
WARNING
WARNING
WARNING
SYMPTOM
PROBLEM CORRECTIVE ACTION
UNIT IS NOISY
Final drive gear noise
Check, add gear oil to final drive
Check, replace worn gears
Check, replace worn bearings
Hydrostatic transmission noise Replace hydrostatic transmission
Transaxle clicking
Mechanical disconnect not properly engaged,
check for obstruction
Check, replace mechanical disconnect
components (If hydrostatic transmission
shaft is damaged, replace transmission)
DOES NOT DRIVE
Improper belt tension
Belt worn, replace
(See O.E.M. equipment manual)
Brake setting incorrect
Adjust brake to proper setting
(See O.E.M. equipment manual)
Belt worn, glazed, or oil saturated
Replace belt
(See O.E.M. equipment manual)
Drive pulley worn
Replace pulley and belt
(See O.E.M. equipment manual)
Transaxle - hydrostatic transmission bad Replace hydrostatic transmission
Shifter linkage misadjusted or broken
Linkage damaged or loose, replace or adjust
(See O.E.M. equipment manual)
Fluid low in hydrostatic transmission Check and add fluid if low (Part No. 730228A)
Disconnect is in freewheel position
Move control to connected position
(See O.E.M. equipment manual)
Sheared or missing axle key Replace missing or broken key
Damaged or broken final drive gear Check, replace worn or damaged gear
Hydrostatic transmission leaking Replace hydrostatic transmission
LEAKING LUBRICANT
Hydrostatic transmission leaking Replace hydrostatic transmission
Final drive leaking at seam
Split final drive housing, clean old sealant off,
replace seals, apply new sealant (torque bolts
80-120 in. lbs.[9.0 Nm - 13.5 Nm])
Final drive leaking at shaft seal
Split final drive housing, clean old sealant off,
replace seals, apply new sealant (torque bolts
80-120 in. lbs. [9.0 Nm - 13.5 Nm])
BRAKE NOT WORKING
Linkage out of adjustment
Adjust brake linkage
(See O.E.M. equipment manual)
Linkage bent or broken
Replace components, set brake
(See O.E.M. equipment manual)
Brake setting incorrect
Adjust brake to proper setting
(See O.E.M. equipment manual)
TecumsehPower Transaxle Troubleshooting -
continued