nifty TrackDrive TD120T Series Operating/Safety Instructions Manual page 48

TrackDrive (TD) Series
Operating & Safety Instructions
5. Repeat steps 1 to 4 for channel 2.
Pass criteria – If the jack legs do not operate the system is functioning correctly.
Fail criteria – If the jack legs move there is a previously undetected fault with the system and the
Niftylift must not be used until this fault has been repaired.
Test 2
1. Deploy the jack legs and raise the boom up off the boom switch
2. Take a voltage reading of the electrical feed into each of the hydraulic solenoid valves from test 1.
Pass/Fail criteria – Both channels should read 0V. Any voltage greater than 0V shows a previously
undetected fault with the system and the Niftylift must not be used until this fault has been repaired.
Repair must be carried out by a competent persons with appropriate safety function experience.
Test 1 and 2 shall be repeated after the repairs.
If both tests pass then the system has no undetected faults proving the safety system is providing
required coverage for performance level d.
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English/USA – 02/17