In brief
Hyva service at PHS Magnum covers tipper hydraulics based on Hyva equipment: overhaul of telescopic cylinders (200–280 bar), pump and control valve repair, and diagnostics of the entire tipping system. Base in Chorula near Opole, 4 km from the A4 junction, crane up to 10 tonnes, pressure test after every repair.
Service phone: +48 602 716 551
Hyva — tipper hydraulics
Hyva is one of the most popular suppliers of tipping systems: telescopic cylinders, pumps and control valve blocks. When a tipper “won’t lift”, drops or jerks — nine times out of ten the cause is in the hydraulics. We diagnose the whole system: PTO, pump, valve block, valves and cylinder, instead of replacing parts at random.
Scope of Hyva service
Telescopic cylinders. Overhaul (full seal kit, rod polishing, pressure test) or replacement, depending on the condition of the tube and rod — more detail: tipper cylinder overhaul.
Pumps and valve blocks. Repair and replacement of hydraulic pumps, service of tipping control valve blocks, filter and oil changes, working pressure checks.
Tipping system diagnostics. Locating the cause of dropping/jerking, electrohydraulic diagnostics of in-cab controls.
Symptom → most common cause
Before we replace a part, we establish where the problem really lies. The table below shows how typical symptoms map onto Hyva system components:
| Symptom | Most common cause | What we check |
|---|---|---|
| Body drops after being raised | leaking cylinder seals or a valve in the control block | cylinder, valve block, check valve |
| Body jerks, uneven movement | air in the system, worn valve block, low pressure | oil level and quality, valve block, pump |
| Incomplete extension | low pump pressure, air in the system, oil loss | pump, PTO, leak-tightness |
| Oil film on the rod, oil traces on the frame | worn seal / scored rod | rod, full seal kit |
| Noisy pump | air in the system, blocked suction filter, pump wear | filter, suction line, pump |
This is a directional map — we confirm the final cause with a pressure measurement and a leak test; we do not swap components at random.
Overhaul or replacement — how we decide
- Disassembly and inspection — assessment of the rod (corrosion, scoring), the tube and the guides.
- Measurement — tube ovality and rod runout determine whether the component qualifies for an overhaul.
- Decision — sound rod and tube: overhaul (full seal kit, polishing). Rod corrosion or tube ovality: replacement.
- Pressure and leak test — after every repair, before the vehicle is released.
Hydraulics as part of a bigger repair
A Hyva hydraulic failure often goes hand in hand with a cracked body or a bent tailgate — we repair both in the workshop in Chorula. We service Meiller equipment the same way. Full scope: tipper and half-pipe trailer service, and body welding is covered in welding a Hardox tipper body.
Contact
Mechanical service: +48 602 716 551 · biuro@magnumchorula.pl Mon–Fri 06:00–20:00 · Sat 07:00–15:00
Related: Tipper and half-pipe trailer service · Meiller service · Tipper cylinder overhaul · Truck service
