Perkins 900 Series Diesel Engine Workshop Manual (P/N TPD 1091 1208E)

• Perkins Publication No. TPD 1091 1208E, October 1991, incorporates Amendment Page Set No. 1 (November 1991) and supersedes publication 601 TPD 0786 1208.
• Coverage: 3.152, D3.152, 3.1522, 3.1524, and T3.1524 agricultural/industrial engines, plus D3.152(M) and 3HD46 marine references and application-specific Massey Ferguson A3.152/AD3.152 data.
• Covers cylinder-head removal and installation, rocker and valve service, valve-guide and seat repair, piston and connecting-rod work, dry-liner replacement, crankshaft inspection, and in-engine main-bearing and thrust-washer service.
• Details timing-case and gear disassembly, camshaft work, valve-timing checks, and CAV DPA or Stanadyne injection-pump timing with pump-setting codes and named Perkins timing tools.
• Includes lubrication-circuit and oil-pump service, thermostat and water-pump procedures, fuel-system bleeding and testing, flywheel and housing alignment, plus alternator, dynamo, and starter checks.
• Provides a 17-symptom/63-cause fault-diagnosis chart and more than 100 numbered figures, including workshop photographs, dimensioned drawings, system schematics, timing and alignment views, and several exploded assemblies.
• File-scope warning: this 102-page manual extract ends at Electrical Equipment Section R.4 after basic starter checks. The Turbocharger, Marine Engines, Approved Service Tools, and Index sections listed in the contents are not included, and routine operating and maintenance information is assigned to the separate 3.152 Series Users Handbook.

This PDF reproduces Perkins Engines Limited's factory workshop material for the 3.152 diesel family. Perkins wrote it to assist personnel engaged in maintenance and overhaul, and restricts engine or component overhaul to properly trained personnel. Work around rotating parts, hot pressurized coolant, high-pressure diesel fuel, batteries, and asbestos-containing gaskets requires the manual's safety and isolation precautions.

The 14-page Technical Data section supplies torque, capacity, clearance, wear, machining, fuel-system, and electrical specifications.

Model and Build Identification

Engine-number prefixes help establish the correct configuration before repair parts or specifications are selected. CD identifies 3.152, CE covers D3.152, D3.152(M), and 3HD46, CJ identifies 3.1522, CM identifies 3.1524, and CN identifies T3.1524. Exterior-view plates distinguish the principal agricultural/industrial layouts and the 3HD46 Mk2.

Build differences directly affect parts and repair data. The cylinder-head section provides separate D3.152 valve-seat specifications for engines built before CE....U584638F and from that number onward. Piston coverage distinguishes flat-top, toroidal-cavity, re-entrant-bowl, and crown-cavity designs, along with model-, speed-, and application-dependent three-, four-, and five-ring packages. On certain D3.152 builds, pump codes beginning with TW50 or WW47E identify the four-ring arrangement; 3.1522 forklift engines also differ from other applications.

Cylinder Head, Liners, and Bottom-End Repair

The cylinder-head section covers removal and installation, rocker-shaft inspection, valve and spring service, guide replacement, valve-seat cutting, and insert installation. Its inspection and assembly data address warm-water pressure testing, head distortion, machining limits, nozzle protrusion, fastener sequences, gasket build changes, and final valve-clearance adjustment. Block work includes plain, flanged cast-iron, and chromium-faced dry liners, service-liner fit, bore inspection, liner-height checks, pressing, boring, and honing.

Bottom-end repair includes piston and rod disassembly, piston-pin bushing replacement, connecting-rod alignment, piston-height grading, bearing-shell inspection, and crankshaft removal and reinstallation. It also covers regrind limits, Tufftrided crankshaft requirements, rear rope- and lip-seal variants, plus flywheel runout and housing alignment. Named tooling includes PD145/PD145C rear-seal guides, PD159 timing-cover centering equipment, the PD155B pump-gear puller, and MS67B with PD.67-series adapters for DPA and Stanadyne timing.

Fuel, Lubrication, Cooling, and Electrical Coverage

The fuel section covers filters, the AC Delco lift pump, atomizers, air removal, and external service of CAV DPA and Stanadyne distributor pumps. Its setting-code table ties each listed engine and pump code to the corresponding engine-check angle, pump-mark angle, static timing, and piston displacement. The lubrication section supplies a labeled oil-flow circuit plus oil-pump, strainer, sump, filter, and relief-valve procedures; pump clearances are separated by pump part number. Cooling material covers draining and flushing, bellows- and wax-type thermostat testing, water-pump overhaul, and fan-belt adjustment.

Electrical pages provide on-engine alternator output and regulator tests for several ACR, A115/A127, 9AR, and LR-series units, followed by C40A dynamo and starter checks. Representative illustrations include the 3HD46 Mk2 rear/right engine view (Fig. B10), Crankshaft Overhaul drawing (Fig. J6), Later Rear Lip-Seal Positions (Fig. J12), Gear Timing Marks (Fig. L1), Lubrication Circuit (Fig. M1), and European-terminal Alternator Test Circuit (Fig. R3).

During injection-pump removal, the manual warns that the loose drive gear must not strike the aluminum timing-case lug or come out of mesh; either error can break the lug or alter pump timing. The electrical section warns that disconnecting the battery while the engine is running, shorting terminals, or reversing polarity can immediately burn out alternator diodes or regulator transistors.