Symptom: Metallic knock when PTO reaches 540 RPM, quiet at idle. Manual solution: The service manual indicates worn plunger bearings or connecting rod bushings. It provides step-by-step for removing the plunger (requires unbolting from the main drive arm), checking bearing clearance with a feeler gauge (spec: 0.005"–0.012"), and replacing the nylon wear guides on the chamber floor.
The knotter on a square baler is often described as "a watch mechanism working in a dirt storm." The MF 187 uses a proprietary knotter design. The manual includes: Massey Ferguson Mf 187 Baler Manual
The Massey Ferguson MF 187 is a small square baler; its operator and service manual typically includes safety instructions, specifications, maintenance schedules, lubrication charts, parts lists and exploded diagrams, assembly and adjustment procedures, troubleshooting, and torque values. This report outlines what to expect in the manual, where to look, key sections to review, common maintenance items, and troubleshooting tips based on typical small square baler practice. Symptom: Metallic knock when PTO reaches 540 RPM,
Sometimes experienced owners share high-resolution scans of out-of-print sections. Not a full solution, but useful for a specific knotter diagram. The knotter on a square baler is often