Cvt System Troubleshooting; Troubleshooting - Taylor-Dunn G0-010-00 Service And Replacement Parts Manual

CVT SYSTEM

CVT SYSTEM TROUBLESHOOTING

TROUBLESHOOTING

SITUATION PROBABLE CAUSE
-Wrong or broken drive clutch spring.
Engine RPM
below specified
-Drive clutch shift weight too heavy.
operating range,
although engine
-Driven clutch spring broken or installed in
is properly tuned.
wrong helix location.
-Drive clutch binding.
Erratic engine
operating RPM
-Belt worn unevenly - thin / burnt spots.
during
acceleration or
-Driven clutch malfunction.
load variations.
-Sheave face grooved.
-Incorrect drive clutch spring (too high spring
rate).
-Drive clutch shift weights incorrect for
application (too light).
-Drive clutch binding.
Engine RPM
above specified
operating range.
-Driven clutch binding.
-Converter sheaves greasy; belt slippage.
-Drive belt worn too narrow.
Harsh drive clutch
engagement. -Excessive belt / sheave clearance with new
belt.
5.26
REMEDY
-Replace with recommended spring.
-Install correct shift weight kit to match engine
application.
-Replace spring; refer to proper installation
location.
A. Disassemble drive clutch; inspect shift
weights for wear and free operation.
B. Clean and polish stationary shaft hub;
reassemble clutch without spring to determine
problem area.
Replace belt.
A. Replace ramp buttons.
B. Inspect movable sheave for excessive
bushing clearance.
-Replace the clutch.
-Install correct recommended spring.
-Install correct recommended shift weights.
-Disassemble and clean clutch, inspecting shift
weights and rollers. Reassemble without the
spring and move sheaves through entire range
to further determine probable cause.
-Disassemble, clean, and inspect driven clutch,
noting worn sheave bushing and ramp buttons
and helix spring location.
-Clean sheaves with denatured alcohol or brake
cleaner, install new belt.
-Replace belt.
-Perform belt / sheave clearance adjustment
with shim washers beneath spider.
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