7 – 28 Repair manual SWE100, 120, 120L, 120S, 140, 140L, 200D © BT
Troubleshooting
Troubleshooting chart
T code Valid from serial no. Date Order no.
841×842×843 6061850- 2012-08-30 258946-120
7.6.5 Defective hydraulic functions
Symptom Influencing elements Possible cause/Remedy
The forks can be lowered but
not raised.
Low or no hydraulic pressure • Low oil level
• Clogged suction filter
• Defective or wrongly adjusted
pressure limiting valve
• Defective hydraulic pump,
replace the hydraulic unit
Pump motor [M3] does not work • Hydraulic unit fuse [F3], 125
A, has blown; replace fuse.
Fore more information, see
the table Pump motor [M3]
does not operate below:
• Measure current and voltage
through and across the pump
motor [M3] respectively.
• Pump motor [M3] voltage/
current normal
• No current or voltage through/
across the pump motor [M3]
• Voltage across the pump
motor [M3], but no current
through it
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