Snapper 1650 Series User Manual

TRANSMISSION TROUBLE SHOOTING GUIDE (continued)
Problem
Possible Cause
Output Torque Trails Off, Etc.
(Continued)
Cooling fan inoperative or ineffective
because of foreign material such as grass
blocking air flow thru cooling fins.
Water in oil
Internal leakage between ball-pistons and
bores, leakage between rotor and pintle
journal
Output torque "not as good as new"
Loss of engine power
Internal leakage due to wear
Control linkage needs adjustment
Engine lugged to a stall — input shaft will not
turn
Pump seized to pintle
Ball-piston seized in bore
Loss of charge pump pressure
Loss of oil
Scored charge pump cam, carrier or plate
Loose charge pump mounting bolts
Restriction, such as plastic caps or plugs in
charge pump inlet circut
Implement relief valve in auxiliary hydraulic
control valve defective or incorrectly set
Oil leaks
Porous or cracked castings
Oil seals defective
Oil line connections loose or defective
Back pressure due to non-ventilated rear
axle
Noise
NOTE: Complaint in most cases is personal
opinion which cannot be resolved as the fault
of the transmission. Noise that forcasts
failure should be given serious attention.
Worn control linkage
Stuck check or acceleration valves
Motor bushing rotated
Worn motor bushing
Aeration — Cavitation
a. Loose fittings
b. Improper filter installation
c. Restriction in charge pump inlet line
Excessive load
a. Incorrect brake release
b. Defective final drive train in rear axle
Low on oil or water in oil.
4.9 31

Snapper 1650 Series Specifications

General

Brand	Snapper
Model	1650 Series
Category	Lawn Mower
Language	English