Hyster H40-50-55-60-70FT B977 Forklift Parts Manual 4134058 2017

Description

Hyster H40-50-55-60-70FT B977 Forklift Parts Manual 4134058 2017

This is the illustrated parts manual for the Hyster H40FT, H50FT, H55FT, H60FT and H70FT lift trucks built under Unit Code B977. Published by Hyster Company with document number 4134058 and dated 01/2017 for the North America market, it is the reference used to identify and order replacement parts for these trucks. The manual covers both the Yanmar 3.3L diesel engine and the PSI 2.4L LPG engine configurations, and it is broken into 18 major sections with a full numerical index at the back.

File Details

• Manual type: Illustrated Parts Manual
• Brand: Hyster
• Models covered: H40FT, H50FT, H55FT, H60FT, H70FT
• Unit code: B977
• Engines covered: Yanmar 3.3L diesel, PSI 2.4L LPG
• Document number: 4134058
• Date: 01/2017
• Region: North America
• Language: English
• Page count: 552
• File format: PDF

Chapters Covered

The manual is divided into 18 major sections, each with its own table of contents pointing to assembly breakdown pages:

• 1 Frame — Counterweight, Overhead Guard, Seat (non-suspension and full suspension, manual and electro-hydraulic), Hood Assembly, Floorplates and Covers, Fender Extensions, Cowl Mount, Dash Panel and Steering Column Cover, Load Backrest Extension, Forks, Exterior and Interior Labels, Rain Top
• 2 Engine Assembly — Yanmar — Cooling System, Overhead and Counterweight Exhaust, Engine Mounting, Fan Assembly, Cylinder Head, Cylinder Block, Intake and Exhaust Manifold, Gear Housing, Oil Pan, Flywheel and Housing, Camshaft and Drive Gear, Crankshaft and Pistons, Engine Cooling, Lubrication System
• 3 Engine Assembly — PSI — Counterweight Exhaust (with and without catalytic converter), Cooling System and Radiator, Engine Mounting, Front End Auxiliary Drive, Transmission Interface, Ignition Coil, Starter, Engine Electrical, ECM Mount, Dipstick, Exhaust Adapter and Manifold, Cylinder Head, Cylinder Block, Front Cover and Oil Pan, Piston and Crankshaft, Camshaft and Valves, Tensioner and Timing Belt, Oil Pump and Filter, Water Pump
• 4 Fuel System — Common to Unit — Standard Throttle Pedal Assembly, Monotrol Pedal Assembly
• 5 Fuel System — Diesel — Air Intake and Filter System, Air Intake Silencer, Pre-Cleaner and Duct, Air Filter Assembly, Fuel System, Fuel Filter and Water Separator, Fuel Injection System, Throttle Position Sensor
• 6 Fuel System — LPG — Air Intake, Pre-Cleaner and Duct, Air Filter Assembly, Fuel System (PSI-LPG without low fuel sensor), Mixer/EPR and PCV Air Hoses, Throttle Body, Lock-Off Valve, Fuel Regulating System
• 7 Electrical System — Common to Unit — RH Chassis Wiring, Cowl Electrical (Manual Hydraulic with Operator Presence System, Electro-Hydraulic), Power Distribution Module, Impact Sensor, Lights (with and without turn signals), Load Weigh Electrical, Instrument Cluster, Mast Electrical, Transmission Electrical, Mini-Lever Controls (Three and Four Function with Armrest), Wire Harnesses (Cowl with Monotrol Pedal, Cowl with Forward/Reverse Lever, Electronic Control Valve Three and Four Function, RH Chassis PSI 2.4L LPG, RH Chassis Yanmar 3.3L Diesel, RH Chassis with Seat Belt Sequence Module, Transmission Single Speed, Adapter Low Fuel Pressure, Seat Belt Switch Adapter)
• 8 Electrical System — LPG — Engine Electrical System PSI LPG, Battery Cables 2.4L PSI LPG, Engine Wire Harness PSI 2.4L LPG
• 9 Electrical System — Diesel — Engine Electrical System Yanmar Diesel, Alternator and Mounting, Engine Wire Harness Yanmar 3.3L, Alternator Wire Harness
• 10 Transmission — Transmission Cooling (Yanmar 3.3L Square Wave with Internal Oil Cooler, 2.4L PSI Engine), Torque Converter, Transmission Mount, Transmission Housing and Assembly (Single Speed Aluminum Chain Drive), Torque Converter Housing and Attaching Parts, Stator Support Housing, Input/Forward Clutch, Counter/Reverse Clutch, Charge Pump Assembly
• 11 Drive Axle — Drive Axle and Attaching Parts (Dry Brake), Drive Axle Sheets 1–3, Differential, Drive Tires and Wheels (Solid, Pneumatic, Radial, and dual-wheel variants)
• 12 Steering System — Steering Column and Attaching Parts (Non-Isolated LPG, Isolated Diesel), Steering Column Assembly, Steering Control Unit, Steering Lines, Steer Axle, Steer Cylinder, Steer Tires and Wheels (Solid, Pneumatic Two-Piece Wheel, Radial)
• 13 Brake System — Brake Linkage (Single Pedal Dry Brake), Brake Master Cylinder Assembly, Brake Assembly (Dry Brake), Park Brake (Dry Brake)
• 14 Hydraulic System — Hydraulic Supply and Return, Gear Pump Assembly (Low Pressure Chain Drive Option, High Pressure), Hydraulic Filter, Hydraulic Hoses (Lift, Tilt, Auxiliary), Auxiliary Hoses, Hand Levers (Three Function without Detented Levers, Four Function with Detented Levers), Control Valve Assembly (Manual Control), Control Valve Lockout Group, Manual Valve Anti Stall Group, Valve Assembly Lift and Tilt, Auxiliary One and Two, Outlet Section, Electronic Valve Assembly (Three and Four Function), Electronic Valve Inlet Section, Electronic Valve Tilt Section, Electronic Valve Auxiliary One and Two Sections, Electro-Hydraulic Poppet Valves, Outlet Section with Diesel Engines, Outlet Section with LPG Engines, Tilt Cylinder and Mast Installation, Tilt Cylinders (H40-50FT and H60-70FT)
• 15 Mast — Two Stage Limited Free-Lift — Outer Mast, Inner Mast, Main Lift, Main Lift Cylinder, Header Hose and Attaching Parts, Carriage
• 16 Mast — Three Stage Full Free-Lift — Outer Mast, Intermediate Mast, Inner Mast, Main Lift Cylinder and Attaching Parts, Free-Lift Cylinder and Attaching Parts, Main Lift Cylinder, Free-Lift Cylinder, Header Hoses and Attaching Parts, Carriage
• 17 Options — Strobe Light (LED), Back-Up Alarm, Mirrors with Overhead Guard, Fire Extinguisher, Integral Side-Shift Carriage (Two Stage Limited Free-Lift, Three Stage Full Free-Lift), Integral Side-Shift Hydraulic Hoses, Integral Side-Shift Cylinder, Integral Side-Shift Fork Positioner (Two Stage Limited Free-Lift, Three Stage Full Free-Lift), Fork Positioner Assembly
• 18 Numerical Index — Complete part number index with page and item references

Across these sections the Hyster H40-50-55-60-70FT B977 parts manual provides exploded assembly drawings, part numbers, descriptions, and quantities required for every major system on the truck. Engine coverage spans the Yanmar 3.3L diesel and the PSI 2.4L LPG, including fuel injection, air intake, exhaust, cooling, lubrication, and engine electrical. Drivetrain coverage includes the single-speed aluminum chain drive transmission, torque converter, stator support, forward and reverse clutch packs, charge pump, and dry brake drive axle. Chassis sections document the frame, overhead guard, seat options, floorplates, hood, fenders, and counterweight. Mast coverage includes both the two-stage limited free-lift and three-stage full free-lift configurations with their lift cylinders, free-lift cylinders, header hoses, and carriages. Options include integral side-shift, fork positioner, strobe light, back-up alarm, mirrors, and fire extinguisher.

Why This Parts Manual Matters

Ordering the wrong part for a Hyster H40FT, H50FT, H55FT, H60FT or H70FT is expensive and delays the truck getting back to work. This manual gives you the exact part number tied to the exact assembly, with the exploded view showing how the pieces fit together and the quantity required per assembly. The section-based layout and the numerical index at the back let you find a part whether you already know its number or only know the assembly it lives on. Because it covers both the Yanmar diesel and PSI LPG engine configurations, it works for the full B977 truck family rather than a single engine variant.

What You Can Do With It

• Identify and order replacement parts for the Yanmar 3.3L diesel and PSI 2.4L LPG engines, including injectors, pumps, gaskets, manifolds, sensors, and wiring
• Rebuild or service the single-speed transmission, torque converter, clutches, and charge pump with correct part numbers and assembly sequences
• Replacement of drive axle, brake, steering, and hydraulic components with the correct seals, bearings, cylinders, and valves
• Service the two-stage limited free-lift and three-stage full free-lift masts, including lift and free-lift cylinders, chains, sheaves, and header hoses
• Add or repair options such as integral side-shift, fork positioner, strobe light, back-up alarm, mirrors, and fire extinguisher
• Look up a part number in the numerical index and jump straight to the assembly breakdown page
• Distinguish between H40-50FT and H60-70FT variants where part numbers differ

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Instant PDF Delivery

This Hyster B977 forklift parts manual is delivered as an instant PDF download — no shipping, no waiting. The 552-page file opens on any device, can be printed for the shop, and can be kept on a laptop or tablet for quick reference at the truck. Once you have the correct Hyster part numbers, ordering the right components becomes a matter of minutes rather than guesswork.