Yanmar SA Series - 3-Point Hitch Issues

17-11
17. TROUBLESHOOTING
SA221/324/424 Operation Manual
The 3-point hitch
does not rise
1. A problem in the transmission hydraulic
oil
1. Transmission hydraulic oil
• Check whether the transmission
hydraulic oil level is too low.
• add transmission hydraulic oil
2. A problem in the transmission hydraulic
oil flow
2. Transmission hydraulic oil flow
• Check whether the transmission
hydraulic flow control/stop knob has
been closed (OFF).
• open the hydraulic flow control/stop
knob
• Check whether an excessive load is
being placed on the 3-point hitch.
• reduce the 3-point hitch load
• Check whether the transmission
hydraulic oil filter is clogged.
• replace the transmission hydraulic
oil filter
The 3-point hitch
lowers too slowly or
does not lower at all
1.
A problem in the hydraulic flow control/
stop valve
1. Hydraulic flow control/stop valve
• Check whether the hydraulic flow
control/stop knob has been closed
(OFF).
• open the hydraulic flow control/stop
knob on the specified rate
• Check whether the rate of drop is set
too slow.
• set the hydraulic flow control/stop
knob to the specified rate
2. A problem in the transmission hydraulic
oil
2. Transmission hydraulic oil
• Check whether the transmission
hydraulic oil level is too low.
• add transmission hydraulic oil
The 3-point hitch
lowers too quickly
1. A problem in the hydraulic flow control/
stop valve
1. Hydraulic flow control/stop valve
• Check whether the rate of drop is set
too fast.
• adjust hydraulic flow control/stop
knob to specified rate
2. A problem on loads 2. Loads
• Check whether an excessive load is
being placed on the hitch.
• reduce excessive load
The problem is: The possible cause(s) are: Remedy:
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