Dynatest FWD - 17. Trouble Shooting

2017.06.19 FwdMan2.8.17.docx 17-137
17. Trouble Shooting
If a functional error occurs during operation of the Dynatest FWD/HWD Test System, this
will normally result in an error message on the Computer screen.
In cases where it is hard to find the cause for the error message, or in cases where something
strange happens (without creating a Computer error message), then the following Trouble
Shooting Procedure should be used, which should reveal most of the possible errors,
especially errors related to the FWD/HWD hardware.
This section mainly consists of Notes which are referred to in the check list below.
Always first check all fuses and battery conditions. Check also that the Computer power is
OK.
SAFETY NOTE!
Whenever somebody is close to the moving parts of the FWD/HWD System,
MAKE SURE that all POWER has been switched OFF!
NEVER PUT HANDS UNDER DROP WEIGHT when this is not supported!
1. Check hyd. oil level. (See 16.1, “Checking the Hydraulic Oil Level”).
2. Switch off all power (See 16.2, “Switching off all Power”).
3. Disconnect the Ethernet Cable from the Compact15 Front Panel.
4. Turn ON the Compact15 and check that at least one of the LEDs turn(s) on (See 16.3,
“Checking Trailer Electronics Power”).
5. Check trailer buffer battery condition, hyd. motor and motor relay (See 16.4, “Checking
Trailer Battery Condition”).
6. Check RAISE PLATE mode (See 16.5, “Revealing hyd. leakage error”, 16.6, “General
Functional Checking of the Hydraulics”).
7. Check LOWER PLATE/RAISE WEIGHT mode (See 16.6, “General Functional
Checking of the Hydraulics”, 16.7, “Checking the Lower Plate/Raise Weight mode”).
8. Check DROP mode (See 16.6, ”General Functional Checking of the Hydraulics”, 16.8,
“Checking the DROP mode”).
9. Check LOWER CATCH mode (See 16.6, “General Functional Checking of the
Hydraulics”, 16.9, “Checking the LOWER CATCH mode”).
10. Check all proximity switch sensors (See 16.10, “Checking the four Proximity Switch
Sensors”).
11. Check the two pressure switches (See 16.11, “Checking the Pressure Switches”).
17.1 Checking the Hydraulic Oil Level
When the FWD/HWD loading unit is in its transport position (i.e. when the plate (subunit)
has been raised completely) and when parked on a level surface, then the hyd. oil level should
be within the upper half of the level indicator on the hyd. oil reservoir. The level indicator
should NOT be filled completely!