Fantuzzi Reggiane MHC 200 — Hydraulics: technical cards
General guidance only — always follow the operation and maintenance manual for your specific machine.
Short answers to precise questions on the hydraulic system of the Fantuzzi Reggiane MHC 200 mobile harbour crane, one fact per card, each with its source stated in the text. For the overall picture, see the Fantuzzi Reggiane MHC 200 technical legacy guide.
Fantuzzi Reggiane MHC 200: how are the hydraulic circuits arranged?
Hoisting, slewing and travel run on closed circuits with variable pumps, according to the 2002 use and maintenance manual, as logged by the HIT SRL technical desk. The same manual gives luffing on variable pumps feeding a double-acting cylinder with hose-burst safety valves, steering and stabilisers on open circuits, and air-oil heat exchangers that keep the oil temperature constant, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-hydraulic-circuits · HIT ref MHC200-036 · fingerprint 50af87 · see HIT ref MHC200-037, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-circuit-pressures
Fantuzzi Reggiane MHC 200 100 t: what are the maximum circuit pressures?
280 bar for hoisting, 350 bar for travel, 180 bar for luffing and 250 bar for slewing, according to the 2002 use and maintenance manual of the 100 t crane, as set out in the HIT SRL technical cards. The same manual gives the power absorbed by each movement, the HIT SRL technical desk notes. It gives 400 kW for hoisting, 240 kW for travel, 140 kW for luffing and 150 kW for slewing, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-circuit-pressures · HIT ref MHC200-037 · fingerprint 3af85a · see HIT ref MHC200-041, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-hydraulic-shutdowns
Fantuzzi Reggiane MHC 200: how much oil does the hydraulic tank hold?
3000 litres, according to the technical data of the 2000-2006 editions and the 2006 lubricants chart, as recorded at HIT SRL. The 2002 use and maintenance manual describes instead a 2500 litre tank placed above the pumps. HIT SRL service technicians report that the two capacities belong to different cranes.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-hydraulic-tank · HIT ref MHC200-038 · fingerprint a6f61f · see HIT ref MHC200-039, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-topping-up-and-oil-change
Fantuzzi Reggiane MHC 200: how is hydraulic oil added or changed?
Oil added to the tank is pre-filtered to 10 microns and of the same type as the oil already in it, according to the 2006 maintenance manual, as HIT SRL's technical desk reads it. The same manual does the oil change to the maximum level with all cylinders retracted, the boom lowered to the ground and the stabilisers raised and retracted, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-topping-up-and-oil-change · HIT ref MHC200-039 · fingerprint cd4adb · see HIT ref MHC200-038, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-hydraulic-tank
Fantuzzi Reggiane MHC 200: which temperature limits does the maintenance manual set?
The pumps coupler casing must not exceed 80 degrees C in operation, with a maximum oil temperature of 105 degrees C, according to the 2006 maintenance manual, the HIT SRL technical desk notes. The same manual refers winch reduction gear, winch brakes coupler and slewing gearcases that run above 80 degrees C or are noisy to the manufacturer's after-sales service, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-temperature-limits · HIT ref MHC200-040 · fingerprint 3dcc95 · see HIT ref MHC200-041, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-hydraulic-shutdowns
Fantuzzi Reggiane MHC 200: which hydraulic faults stop the engine?
A low pump suction pressure stops the engine after 3 s, with a default of 1500 mbar, and a low boost pressure of pumps 1, 2 and 3 after 10 s, with a default of 20 bar, according to the 2006 manual, as recorded at HIT SRL. The same manual adds the pumps coupler oil above the stop threshold and the hydraulic oil cocks safety device after 3 s, as logged by the HIT SRL technical desk. The manufacturer's training material of 2003 gives a coupler stop threshold of 90 degrees C, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-hydraulic-shutdowns · HIT ref MHC200-041 · fingerprint fd5c10 · see HIT ref MHC200-019, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/engine-and-power/#hit-mhc200-engine-restart
Fantuzzi Reggiane MHC 200: what compressed-air pressure is allowed for cleaning?
At no more than 2 kg/cm2, according to the 2006 maintenance manual, which allows compressed air for cleaning radiators, heat exchangers and filter cells, as HIT SRL's technical desk reads it. The same manual requires eye protection during the job, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-compressed-air-cleaning · HIT ref MHC200-042 · fingerprint b16386 · see HIT ref MHC200-043, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-signs-of-wear
Fantuzzi Reggiane MHC 200: what signs of hydraulic wear does the manual list?
A change in the whistle of the relief valves, creaking cylinders and pump or motor noise rising with pressure, according to the maintenance introduction of the 2006 manual, as set out in the HIT SRL technical cards. The same introduction links a rising oil temperature to dirty exchangers or faulty fans, bearing damage, deposits and internal leakage, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-signs-of-wear · HIT ref MHC200-043 · fingerprint 958bd5 · see HIT ref MHC200-044, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-cylinder-creep
Fantuzzi Reggiane MHC 200: what does a cylinder that moves slowly under load indicate?
Defective or worn piston seals, when the cylinder moves slowly under load with the distributor closed, according to the 2006 maintenance manual, as logged by the HIT SRL technical desk. The same manual suggests judging the wear of hydraulic motors from their drain flow, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-cylinder-creep · HIT ref MHC200-044 · fingerprint 925373 · see HIT ref MHC200-043, https://www.hitsrl.it/technical-resources/guides/reggiane-mhc-200/hydraulics/#hit-mhc200-signs-of-wear