1986 CASE 1845B Uni-Loader Skid Steer Loader Parts Catalog (P/N 8-1852)

J I Case Parts Catalog 8-1852, issued April 1986, covers the CASE 1845B Uni-Loader skid steer loader for North America. It documents the 159 spark ignition and 188 diesel configurations for parts identification and repair planning.

• Engine components: Illustrated parts lists for cylinder blocks, pistons, crankshafts, valve mechanisms, camshafts, oil pumps, and engine gasket kits.

• Fuel and cooling: Zenith carburetor, diesel injection equipment, fuel filters, governor linkages, and separate radiator layouts for short and long supports.

• Hydrostatic drive: Sperry-Vickers tandem pump, Cessna dual pumps, drive motors, tandem pump controls, forward/reverse linkages, and drive chain assemblies.

• Electrical assemblies: Prestolite and Nippondenso starters, Delco-Remy alternators, ignition distributors, front and rear harnesses, and instrument-panel parts.

• Loader hydraulics: Lift, bucket, and auxiliary circuit layouts with control valves, cylinder breakdowns, hydraulic oil filters, and seal-kit contents.

• Chassis and attachments: Axles, wheels, parking latch, loader frame, bucket and fork attachments, ROPS enclosures, forestry guards, and noise-control equipment.

Suited to mechanics and owners who can match illustrated callouts to parts lists and identify the components fitted to their machine.

Engine, Fuel, and Cooling Parts

Navigating an older skid steer rebuild or repair requires exact part numbers. Component views cover intake and exhaust manifolds, cylinder heads, oil pans, and piston/connecting-rod assemblies.

The Crankshaft and Flywheel lists distinguish standard and undersize bearing inserts. Gasket sections separate valve-grind, cylinder-block, and oil-pan kits.

Fuel-system listings separate gasoline throttle and governor linkages from diesel injection-pump drives and fuel-filter heads. Injection Nozzles identifies the diesel nozzle's stamp code and color marking, with a specific note on renewing its sealing washer and carbon-stop seal after removal.

The Radiator, Hoses and Shroud illustrations distinguish the support lengths and their mounting hardware. These views help match shrouds and supports before ordering; lower hoses are identified by engine type. Standard and spark-arrester exhaust mufflers are also listed.

Hydrostatic Drive and Loader Hydraulics

The Tandem Pump to Drive Motors illustration shows hose and fitting connections. Drive Chain and Gears links sprockets, chains, planetary units, and axles to their parts lists; tandem-pump sections separate the right-hand pump, left-hand pump, and valve block.

Cessna dual-pump and loader-control-valve listings distinguish component changes by product identification number. The D82186 pump and loader control valve sections specifically state that their internal parts lists do not apply to the remanufactured assemblies.

Auxiliary hydraulic layouts distinguish front, rear, and loader-arm circuits with or without selector valves. Loader Control Valve and the cylinder illustrations identify spool components, glands, pistons, and seals.

Scope: The exploded drawings and hydraulic routing illustrations support parts selection. The catalog does not provide the repair procedures or assembly sequence needed to carry out an overhaul.

For physical work around raised lift arms, follow the machine's support-strut precautions and have uncertain repair procedures checked by a qualified heavy-equipment mechanic.

Electrical Layouts and Component Variants

The rear-harness illustration covers the battery, alternator, and starter, with separate gasoline and diesel harness listings. Front Harness and Instrument Panel identifies gauges, warning lamps, and mounting parts; separate drawings cover the windshield wiper and backup alarm.

Starter lists break out brush sets and solenoid connections. Alternator lists identify diodes, regulators, and the metric-hardware version. Electrical coverage consists of assembly and harness illustrations rather than diagnostic wiring schematics.

The alternator warning decal flags attempted polarization and grounding of field or output terminals as practices that can damage the unit.

Selected Bearing and Drive-Chain Details

These examples show a small selection of the component identification data in the catalog.

For the 159 engine, rear main-bearing insert A42322 is listed as 0.010 inch undersize. Drive Chain and Gears identifies No. 60 drive chains and No. 80 driven chains. These are replacement-part sizes and designations, not bearing clearances or chain-adjustment specifications.

PDF Reading and Page Count

Search and illustration detail: PDF text search and embedded bookmarks are unavailable. Small reference numbers in the front and rear harness drawings are readable when enlarged. Browse by the numbered illustrations and corresponding parts-list headings.

One printable English-language PDF contains 261 pages, including the cover/revision-record page, two header-only pages, and nine blank pages.