Fantuzzi Reggiane MHC 115 — Troubleshooting: technical cards
General guidance only — always follow the operation and maintenance manual for your specific machine.
Short answers to precise questions on the fault finding of the Fantuzzi Reggiane MHC 115 mobile harbour crane, one fact per card, each with its source stated in the text. For the overall picture, see the Fantuzzi Reggiane MHC 115 technical legacy guide.
Fantuzzi Reggiane MHC 115 BDE: how are electronic faults diagnosed?
With the same diagnostics chapter as the MHC 200, according to the 2008 manual: CAN problems are checked by connector, power supply and 120 ohm termination, then unit, keyboard, joystick, radio-control timeout, analogue-input, output and encoder faults, as HIT SRL's technical desk reads it. The same chapter of the manual checks the weight calibration at 17-19 mA without load, as recorded by the HIT SRL technical desk. HIT SRL service technicians report that, after a first calibration carried out with training, the crane's own technicians can repeat it on their own through the parameters menu.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-electronic-diagnostics · HIT ref MHC115-081 · fingerprint caf6e5 · see HIT ref MHC115-084, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-other-alc-alarms
Fantuzzi Reggiane MHC 115: which hydraulic troubleshooting charts do the manuals give?
Charts for hydraulic motors, pumps, relief valves, check valves, directional and pressure control valves, filters and gauges, according to the hydraulic troubleshooting section of the MHC 115 manuals, as logged by the HIT SRL technical desk. The charts are the same as in the MHC 200 manuals, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-hydraulic-charts · HIT ref MHC115-082 · fingerprint aadbee · see HIT ref MHC115-086, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-signs-of-wear
Fantuzzi Reggiane MHC 115: what happens in the ALC system if the inclinometer is not calibrated?
The intermediate boom limit switches are ignored and boom lowering is blocked, according to the ALC description of the 2002 manual, together with the Load cells not connected condition, as set out in the HIT SRL technical cards. The display message tells the operator why the movement stopped, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-inclinometer-alarms · HIT ref MHC115-083 · fingerprint d8e23d · see HIT ref MHC115-052, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/electrical-and-control/#hit-mhc115-alc-boom-lowering-blocks
Fantuzzi Reggiane MHC 115: which other ALC alarms does the 2002 description list?
Greasing system blocked from the optional greasing control unit, Air filter clogged from the machinery-room wall filter and Sensor not connected for battery-voltage readings out of range, according to the ALC description of the 2002 manual, as logged by the HIT SRL technical desk. The ALC description of the manual shows each alarm with the buzzer and records it in the black box, as recorded at HIT SRL. According to the same description, the greasing contact must be closed with an engine running, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-other-alc-alarms · HIT ref MHC115-084 · fingerprint 694409 · see HIT ref MHC115-052, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/electrical-and-control/#hit-mhc115-alc-boom-lowering-blocks
Fantuzzi Reggiane MHC 115: how is the troubleshooting of the telescopic spreader organised?
As trouble, cause and correction, according to the supplier's operating manual of 04/99 for the telescopic spreader, the HIT SRL technical desk notes. The manual follows it with repair instructions, proximity switch setting, energy chain repair and mechanical twistlock repair, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-spreader-troubleshooting · HIT ref MHC115-085 · fingerprint 7bfb20 · see HIT ref MHC115-078, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/safety-and-interlocks/#hit-mhc115-spreader-checks
Fantuzzi Reggiane MHC 115: which signs of hydraulic wear do the manuals describe?
Changes in the whistle of relief valves, creaking cylinders, pump noise rising with pressure and dirty exchangers with a rising temperature, according to the maintenance introduction of the MHC 115 manuals, as recorded at HIT SRL. The introduction is the same text as in the MHC 200 manuals, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-signs-of-wear · HIT ref MHC115-086 · fingerprint 68648f · see HIT ref MHC115-082, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-hydraulic-charts
Fantuzzi Reggiane MHC 115: what is the minimum radius below which the ALC system blocks boom raising?
Below 10 m, the minimum admissible radius of the load tables, according to the ALC description of the 2002 manual, the HIT SRL technical desk notes. The description gives 9 m for the MHC 65, 8 m for the MHC 40 and 7 m for the MHC 20, and a maximum admissible radius of 38, 34, 30 and 24 m respectively, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-minimum-radius-alc · HIT ref MHC115-087 · fingerprint be213a · see HIT ref MHC115-053, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/electrical-and-control/#hit-mhc115-alc-boom-raising
Fantuzzi Reggiane MHC 115: where does the final boom lowering limit switch act?
At 38 m, according to the ALC description of the 2002 manual, against 34 m on the MHC 65, 30 m on the MHC 40 and 26 m on the MHC 20, as recorded at HIT SRL. The same description of the manual has the intermediate lowering limits act only above a hook height, as logged by the HIT SRL technical desk. For example, it gives 34 m with the hook above 26 m on the MHC 115, according to the same description, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/troubleshooting/#hit-mhc115-boom-lowering-limits · HIT ref MHC115-088 · fingerprint 4ef770 · see HIT ref MHC115-052, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-115/electrical-and-control/#hit-mhc115-alc-boom-lowering-blocks