8 hours ago
Manufacturer and Model Background
Poclain began as a French manufacturer of hydraulic excavators, and by the 1970s was a global pioneer in full‑rotation hydraulic machines. In 1974 Poclain began cooperation with Case (USA), and by 1987 Case controlled nearly all Poclain’s construction‑equipment business. The “75” series (e.g., 75 P, 75 CL, 75 CK) belongs to a mid‑sized range of crawler excavators from that era, often used for general construction and utility works. The machine manuals for these models remain valuable for operators and mechanics maintaining units built in the 1980s and later.
Contents and Importance of the Manual
The service/manual for the 75‑series (for example the 75P/75CL) typically includes:
Key Specifications and Features of the 75‑Series
While exact specs vary by subtype and year, representative data for similar Poclain 75 models include:
For machines in service many years after manufacture, the manual emphasizes:
Operators of 75‑series machines have reported recurring problems such as:
A thorough service/manual for the Poclain‑Case 75‑series excavators remains an invaluable resource for keeping these machines running effectively, safely, and reliably. Given their age and the evolution of machine design, adherence to the original manual’s specifications, combined with informed preventive maintenance and upgrades, can significantly extend machine life. Whether you use your machine in utility digging, general construction or rental applications, the manual guides both day‑to‑day operation and long‑term upkeep.
Poclain began as a French manufacturer of hydraulic excavators, and by the 1970s was a global pioneer in full‑rotation hydraulic machines. In 1974 Poclain began cooperation with Case (USA), and by 1987 Case controlled nearly all Poclain’s construction‑equipment business. The “75” series (e.g., 75 P, 75 CL, 75 CK) belongs to a mid‑sized range of crawler excavators from that era, often used for general construction and utility works. The machine manuals for these models remain valuable for operators and mechanics maintaining units built in the 1980s and later.
Contents and Importance of the Manual
The service/manual for the 75‑series (for example the 75P/75CL) typically includes:
- Operating instructions and safety guidance
- Maintenance schedules and lubrication charts
- Detailed hydraulic schematics and wiring diagrams
- Parts breakdowns and exploded views for major assemblies
- Technical specifications (weights, engine power, travel speeds, hydraulic flows)
Key Specifications and Features of the 75‑Series
While exact specs vary by subtype and year, representative data for similar Poclain 75 models include:
- Operating weight: approximately ~18 tonnes for versions such as the 75CK.
- Engine power: e.g., ~79.5 kW (~106 hp) in a 75CK variant.
- Hydraulic system: typical flow and pressure ratings for excavators of this class were in the range of ~200 L/min and relief pressures of 200‑250 bar, though exact values must be verified from the manual.
- Dig depth and reach: lateral reach on some variants around >10 meters (for material‑handler versions).
For machines in service many years after manufacture, the manual emphasizes:
- Regular oil and filter changes for hydraulic, engine, and final‑drive systems.
- Inspection and adjustment of undercarriage components (track tension, rollers, idlers) to maintain machine performance.
- Monitoring for hydraulic hose wear, especially on boom and dipper connections, as high‑pressure systems on these machines were prone to hose bursts.
- Use of correct consumables and adhering to lubrication intervals as specified in the manual, to avoid premature component wear.
Operators of 75‑series machines have reported recurring problems such as:
- Cracked or fatigued booms and dipper arms, especially on models used in demolition or heavy digging.
- Hydraulic hose failures due to older-generation high‑pressure systems and material fatigue.
- Cabin comfort issues (e.g., overheating) on older machines, as early cabs lacked modern cooling or insulation.
- Secure a good manual: Because many parts and systems are specific, having the correct manual ensures proper spec values and part numbers.
- Cross‑check specs: If your serial number is unknown, compare your machine’s features (engine nameplate, boom style) with those listed in the manual to ensure match.
- Maintain records: Keep a log of hours, maintenance, parts replacements; the manual will provide standard intervals.
- Upgrade critical wear items: On older units, consider replacing hoses, hydraulic seals, and undercarriage components proactively rather than reacting to failure.
- Follow safety instructions: Older machines may not meet modern safety standards, so operators should apply additional caution (e.g., ROPS/FOPS compliance, secure cab entry).
A thorough service/manual for the Poclain‑Case 75‑series excavators remains an invaluable resource for keeping these machines running effectively, safely, and reliably. Given their age and the evolution of machine design, adherence to the original manual’s specifications, combined with informed preventive maintenance and upgrades, can significantly extend machine life. Whether you use your machine in utility digging, general construction or rental applications, the manual guides both day‑to‑day operation and long‑term upkeep.
