Volvo Penta Aquamatic 270T Workshop Manual (P/N 7726380-4)

• Official Volvo Penta OEM publication (P/N 7726380-4), first edition May 1999
• Covers 1999 Aquamatic 270 and 270T outboard drive units, including 270B, 270C, and 270D configurations
• Focuses heavily on power trim and mounting collar assemblies
• Features 47 technical diagrams, 4 exploded-view schematics for the hydraulic lift unit, and 4 specific torque-setting tables

Hydraulic System and Component Documentation

This factory reference is essential for technicians dealing with the 270T Power Trim and mounting collar setup. It replaces several later service bulletin updates with complete baseline data. The text outlines the exact functional principles of the trim, beach, and tilt positions. You get specific fault-tracing schemes to quickly diagnose drive lifting or lowering issues on the water or in the shop. It thoroughly documents the reconditioning process for the hydraulic pump, valve housing, lift cylinders, and trim cylinders. Assembly and fitting data are clearly mapped out. Working on marine drive systems requires strict adherence to safety protocols. Always relieve hydraulic pressure and securely brace the outdrive before interacting with lift components.

Specification Highlights

Stop guessing on tolerances. This guide delivers precise pressure ratings for the lift and relief valves, plus exact fluid requirements for the hydraulic system. Correct gear backlash values are fully documented. The B-series models require 0.15 to 0.25 mm. The C and D models demand a tighter 0.08 to 0.18 mm tolerance. Torque values for critical joints are clearly listed, such as tightening the hydraulic piston in the lift cylinder to 80-120 Nm. You also get complete coolant system and hydraulic oil capacities for accurate maintenance planning. This official OEM document serves purely as a contents reference outlining hydraulic, gear, and assembly specifications for the 270 series, ensuring your shop has the right structural data before starting any teardown.