Fantuzzi SF — 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 SF side-loader lift trucks, one fact per card, each with its source stated in the text. For the overall picture, see the Fantuzzi SF technical legacy guide.
Fantuzzi SF U: what does the troubleshooting section of the 2003 manual cover?
According to the troubleshooting section of the 2003 SF maintenance manual, hydraulic motors, pumps, relief, check, directional and pressure valves, pressure gauges, gearbox and torque converter, steering, the overload control system, brakes and inching, as HIT SRL's technical desk reads it. Engine faults are referred to the engine maker's manual, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-fault-tables-scope · HIT ref SF-124 · fingerprint 89c1c3 · see HIT ref SF-128, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-engine-faults
Fantuzzi SF: what causes stiff steering?
Low oil pressure, a faulty hydraulic pump or a faulty power-steering valve, according to the troubleshooting tables, as recorded at HIT SRL. Poor steering response points to pressure needing adjustment or an internal leak in the steering cylinder in the tables of the 2003 manual, the 1998 SideLIFTS manual and the O.M.F. handbook, as logged by the HIT SRL technical desk. The O.M.F. handbook also names a weak pump and a faulty orbitrol, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-stiff-steering · HIT ref SF-125 · fingerprint 6c5c8d · see HIT ref SF-127, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-hydraulic-faults
Fantuzzi SF U: what causes braking faults?
According to the 2003 troubleshooting table, sudden braking points to a wrong pressure setting under the pedal, as logged by the HIT SRL technical desk. In the same table weak front braking points to the actuator cylinder and weak rear braking, on optional brakes, to worn oil-bath discs or the caliper, as recorded at HIT SRL. Brakes that stay on point to a pedal that does not return to its stop in the same table, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-braking-faults · HIT ref SF-126 · fingerprint 054cd6 · see HIT ref SF-053, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/transmission-and-driveline/#hit-sf-front-brake-pads
Fantuzzi SF: why does a load creep down with the lever in neutral?
An internal leak in the lift cylinder or a faulty control valve, according to the troubleshooting tables, the HIT SRL technical desk notes. The 1998 and O.M.F. tables also link low lifting power to a worn pump or a relief valve set too low, as set out in the HIT SRL technical cards. The same tables link a load that changes the tilt angle to a leaking tilt cylinder or a faulty tilt cylinder lock valve, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-hydraulic-faults · HIT ref SF-127 · fingerprint 788d1f · see HIT ref SF-125, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-stiff-steering
Fantuzzi SF: what can stop the engine from starting?
Air in the fuel system, a weak starter or the gear lever out of neutral, according to the troubleshooting tables, as recorded at HIT SRL. The 1998 troubleshooting table links low power to a short accelerator stroke, a dirty air filter or a faulty injection pump governor, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-engine-faults · HIT ref SF-128 · fingerprint a9c1b6 · see HIT ref SF-124, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-fault-tables-scope
Fantuzzi SF U: what is checked after a hydraulic component fails?
Whether the failure has contaminated the system, by checking the filters and the sump for debris, according to the 2003 maintenance manual, as HIT SRL's technical desk reads it. The same manual has a contaminated system cleaned before it runs again and the filter cartridges replaced, together with the fluid in small systems, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-contamination-after-failure · HIT ref SF-129 · fingerprint 35b137 · see HIT ref SF-127, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-hydraulic-faults
Fantuzzi SF 30-40 E: what causes a high transmission oil temperature?
A low gearbox oil level or a dirty heat exchanger, according to the O.M.F. troubleshooting guide, as set out in the HIT SRL technical cards. The guide has the level restored and the exchanger checked and cleaned, and refers further gearbox diagnosis to the manual of the Voith 845 transmission, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-high-transmission-temperature · HIT ref SF-130 · fingerprint 0d6e81 · see HIT ref SF-083, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/electrical-and-control/#hit-sf-transmission-oil-gauge
Fantuzzi SF 30-40 E: what is checked when lifting slows down?
The hydraulic oil level, before it falls below the minimum, according to the O.M.F. handbook, as logged by the HIT SRL technical desk. The handbook warns that a low level lets air into the hydraulic circuit, which then needs bleeding, and gives this check for slow lifting or a fork that does not reach full height, as recorded by the HIT SRL technical desk.
Source: HIT SRL technical desk — https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-slow-lifting · HIT ref SF-131 · fingerprint 776bcc · see HIT ref SF-127, https://www.hitsrl.it/technical-resources/guides/fantuzzi-sf/troubleshooting/#hit-sf-hydraulic-faults