Troubleshooting - Mammuth PT20L095 Bedienungsanleitung

6. Troubleshooting

No. Trouble
1 The forks cannot
be up at the max
height
2
The fork cannot be
lifted up
3
The forks cannot
be descended
4
Leaks
5
The fork descends
without the release
valve worked.
Note! Do not attempt to repair the pallet truck unless you are trained or authorized to do so.
Inspection:
The hand pallet truck must be inspected by authorized person minimum one time per year. The
result of checking must be filled in the report.
Disposal:
After using, the pallet truck should be disposed corresponding to the law regulations. All parts should
be brought for recycling.
Clause
The hydraulic oil is not enough
- Without hydraulic oil
- The oil has impurities
- The nut (Part No. 59) is too high,
keep the pumping valve open.
- The air comes into the hydraulic
oil.
-The piston rod (Part No. 9) or
pump body (Part No. 15) is
deformed resulting from partial
loading slanting to one side or
over loading.
- The fork was kept in the high
position for long time with piston
rod bared to arise in rusting and
jamming of the rod.
- Adjusting the nut (Part No. 59) is
not the correct position.
- Sealing parts worn or damaged.
- Some parts creaks or worn into
small
- The impurities in the oil cause
the release valve to be unable to
close tight.
- Some parts of the hydraulic
system is cracked or bored.
- The air comes into the hydraulic
oil.
- Sealing parts worn or damaged.
- The adjusting nut (Part No.59) is
not the the correct position.
Fixing Methods
Pour in the oil
- Fill in the oil
- Change the oil
- Adjust the nut (Part No.59)
(see item 3.4)
- Bannish the air (see item
5.2)
- Replace the piston rod (Part
No. 9) or the pump body
(Part No. 15)
- Keep the fork in the lowest
position if not using, and pay
more attention to lubricate
the rod.
- Adjust the nut (Part No.59)
(see the item 3.3)
- Replace with the new one.
- Replace with the new one.
- Replace with the new oil.
- Inspect and replace the
waste parts.
- Bannish the air (See item
5.2)
- Replace with the new one.
- Adjust the nut (Part No.59)
(see the item 3.3)
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