Part of the John Deere Repair Manuals.
John Deere issued TM-4452 as the factory technical manual for seven variants of its self-propelled combines, and this 826-page John Deere 1166, 1169H, 1174, 1177, 1188 technical manual PDF covers both Hydro/4 machines too. Wiring diagrams trace circuits through the fuse and relay box, harvest performance monitor, and electro-magnetic transmission brake, while hydraulic schematics map the dual and triple pump circuits behind the leveling and control valves. The separator and cleaning unit takes up more than a third of the book, walking you through separator drive, beater, variable cylinder drive, threshing cylinder, concave, and straw walkers. Charge the air conditioning system with 1950 g (68.8 oz.) of refrigerant, then torque the front wheel bolts to 420 Nm (304 ft-lb) — 550 Nm (400 ft-lb) on the 1169H. A mid-harvest breakdown leaves you alone with the machine. This bookmarked, text-searchable PDF rides on your laptop to whichever field the combine quit in.
What's Inside This John Deere 1166, 1169H, 1174, 1177, 1188 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Information | 1-13 | Specifications (Standard Torques - General, Recommended Torques for Unc and Unf Cap Screws, Recommended Torques for Metric Cap Screws, Recommended Torques for Pipe and Hose Connections, Metric and Inch Threads) |
| Engine Repair | 14-32 | Engine Pulley (Special Tools, Torques for Hardware, Removal, Installation) |
| Fuel System | 33-37 | Fuel Tank, Fuel Filter, Water Trap, Electrical Fuel Transfer Pump, Speed Control Components, Engine Shut-Off Components |
| Electrical Equipment Repair | 38-96 | Connectors, Fuse and Relay Box, Starting Motor, Alternator, Harvest Performance Monitor, Electromagnetic Transmission Brake |
| Power Train | 97-242 | Variable Ground Speed Drive, Posi-Torq Ground Drive, Clutch Operating Assembly, Engine Clutch, Hydrostatic Drive, Transmission |
| Brakes, Rear Axle and Steering | 243-304 | Parking Brake, Brake Operating Assembly, Foot Brakes, Hydrostatic Steering, Rear Axle |
| Hydraulic System | 305-471 | Hydraulic Lines, Dual Hydraulic Pump, Triple Hydraulic Pump, Mechanical Control Valves, Leveling System Control Valve, Electro-Magnetic Control Valve |
| Separator and Cleaning Unit | 472-795 | Separator Drive, Beater, Variable Cylinder Drive, Threshing Cylinder, Concave, Straw Walkers |
| Operator's Platform and Cab | 796-826 | Cab Ventilation System, Air Conditioning Compressor, Cab Heating System, Operator's Cab, Steering Column, Operator's Seat |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 1166, 1174, 1177, 1188 — not 1169H | ||
| Wheel bolt torques - Front wheels (except 1169H) | 420 Nm (304 ft-lb) | p. 3 |
| 1169H only | ||
| Wheel bolt torques - Front wheels (1169H) | 550 Nm (400 ft-lb) | p. 3 |
| All Models | ||
| Wheel bolt torques - Rear wheels | 180 Nm (130 ft-lb) | p. 3 |
| Compressor oil charge | 320 cm³ (19.5 cu.in.) | p. 4 |
| Refrigerant capacity (air conditioning) | 1950 g (68.8 oz.) | p. 4 |
| Hydraulic tubing retraction | 2 to 3 mm | p. 309 |
| Chain slack | 5 mm (0.2 in.) | p. 359 |
| Accumulator capacity | 2.0 liters (120 cu-in.) | p. 348 |
| Dimension (X) of spring | 56 mm (2.2 in.) | p. 456 |
| Distance (Y) | 72 mm (2.8 in.) | p. 456 |
| 6466 Engine Intake Valve Clearance | 0.45 mm | p. 2 |
| 6359 Engine Intake Valve Clearance | 0.35 mm | p. 2 |
| Electrical System Battery Voltage | 12 volts | p. 3 |
John Deere 1166, 1169H, 1174, 1177, 1188 Common Problems This Manual Covers
John Deere 1177 Hydro/4 gear lever very hard to move shifting second to third on hillsides
Check the shift linkage and clutch operating assembly for wear before condemning the transmission; adjustment procedures start in the Power Train section on page 97. Measure engine clutch disk thickness and replace any disk worn below 7 mm, since a dragging clutch loads the gears and makes the lever fight you on slopes.
Manual Section: Power Train p. 97Hydraulic lines weep at fittings and header lift gets slow late in the season
Inspect every hose and fitting with the system warm; when reassembling tubing, verify 2 to 3 mm of tubing retraction per the spec on page 309. Test accumulator pre-charge and restore it to 3500 kPa (500 psi) using the values on page 348 before blaming the pump, then replace any hose that weeps under load.
Manual Section: Hydraulic System p. 305Drive chains jump sprockets and throw the master link during heavy threshing
Adjust chain tension to 5 mm (0.2 in.) of slack per the spec on page 359, and check it every few evenings during harvest. Replace a stretched chain and its sprockets as a set; a new chain running on hooked sprockets is junk within a season. Oil the chains nightly and keep a spare master link in the cab.
Manual Section: Separator and Cleaning Unit p. 472Starter turns over slowly or just clicks once with a full battery on cold mornings
Test battery voltage and clean both cable ends before touching the starter, then follow the starting motor removal steps beginning on page 38. If cranking stays slow, pull the Bosch motor and measure brush length, replacing brushes shorter than 7.5 mm as specified on page 457. Check the frame ground strap too; corrosion there mimics a dead battery.
Manual Section: Electrical Equipment Repair p. 38Cab air conditioner blows warm and the compressor clutch cycles or will not engage
Verify the compressor clutch coil draws 2.8 to 3.5 amps at 12 volts using the values on page 373; no draw points to wiring or coil, not refrigerant. Measure clearance between the clutch halves and set it to 0.53 to 0.91 mm per page 387. Recover and weigh in the full 1950 g refrigerant charge before harvest heat hits.
Manual Section: Operator's Platform and Cab p. 796Frequently Asked Questions
What is the belt pulley to engine shaft screw torque on a John Deere 1166-1188 combine?
The torque specification for the belt pulley to engine shaft attaching screws is 78 Nm (57 ft-lb). p. 15
What is the minimum clutch disk thickness on a John Deere 1166-1188 combine?
The minimum thickness for the clutch disk is 7 mm (0.28 in.). p. 3
What is the engine lubrication system oil capacity for the 1177 Hydro/4 and 1188 models?
The engine lubrication system capacity for the 1177 Hydro/4, 1188, and 1188 Hydro/4 models is 20 liters (5.3 U.S. gal.). p. 4
What is the intake valve clearance on the 6466 engine in a John Deere 1166-1188 combine?
The valve clearance for the intake valve on a 6466 engine is 0.45 mm (0.018 in.). p. 2
What is the injection nozzle opening pressure on the 6359 engine in a John Deere 1166-1188 combine?
The opening pressure for a new injection nozzle on a 6359 engine is 25100 to 25800 kPa (251 to 258 bar; 3650 to 3750 psi). p. 2
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