Fiat Allis 645B Wheel Loader Complete Service Manual

$129.99

Covers: Fiat Allis 645B Wheel Loader
Pages: 1,045
Format: PDF file (zipped)
File size: 214mb
Compatibility: Windows/Mac computers
Notes: Instant digital download only – no printed copy or CD-ROM media.

This manual contains detailed service and repair procedures, specifications and illustrations for Fiat Allis 645B wheel loaders. The service manual provides the most accurate information available and is a must for all Fiat Allis 645B Wheel Loader owners, operators and mechanics. Print off  pages, including diagrams and illustrations, at any time. Save time and money on repairs with this professional grade manual.

BONUS: Includes Operator’s Maintenance Manual and Parts Manual

Topics in the Fiat Allis 645B Wheel Loader Complete Service Manual

  • General Information
  • Specifications
  • Torques
  • Operation and Maintenance
  • Engine Service and Overhaul
  • Fuel System
  • Turbocharger
  • Transmission Service and Overhaul
  • Torque Converter
  • Axles
  • Brakes
  • Power Steering
  • Bucket
  • Chassis
  • Cab
  • Hydraulic System
  • Electrical System
  • Hydraulic Schematic
  • Electrical Wiring Schematic
  • Part Numbers and Illustrations
  • And much more…

Sample pages from this manual:

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645B Loader Specifications

ENGINE
Make Allis-Chalmers
Model 3500 Mark II turbo-charged diesel
Governed rpm 2200
Maximum torque
ft.-lbs. @rpm 443 ft.-lbs.@ 1600 rpm
kg-m @rpm  61.3 kgm@ 1600 rpm
Bore & stroke 4.25″ x 5 .O” ( 108 x 127 mm)
Number of cylinders 6
Displacement 426 cu.in. (7.0 lit)
TORQUE CONVERTER
Type Twin-turbine
Torque multiplication 5.05 to 1
TRANSMISSION
Type Power shift planetary
AXLES
Rear axle oscillation  22°
Inches vertical travel  15″ (381 mm)
BRAKE SYSTEMS
Service – 4 wheel, air over hydraulic, dual system.
Emergency-dash mounted lever actuates service brakes.
Parking-mechanically actuated drum brake on drive line
TIRES
Type Tubeless
Standard 20.5-25 (12 PR) L3
Optional 17.5-25 (12 PR) L2. L3
ELECTRICAL SYSTEM
20.5-25 (12 PR! L2
20.5-25 (16 PR) L2. L3
Voltage  24V
Standard alternator 30 amp
Battery amp/hour rating 180
System protected by circuit breakers.
LOADER HYDRAULIC SYSTEM
Type Closed with pressure & vacuum relief
Cylinders Double acting
Lift (2) 6.0″ x 32.5″ (152 x 826 mm)
Dump (2) 5.5″ x 37.25″ (140 x 946 mm)
Pump Gear type tandem-mounted
Capacity@ governed rpm 71.0 gpm (268.7 lit/min)
Control valve Two spool
Relief valve pressure 1825 psi (130 kg/cm2)
Lift time 6.5 sec.
Lower time 4.8 sec.
Dump time 3.0 sec.
STEERING SYSTEM
Type Hydraulic power
Cylinders Two, double acting
Bore & stroke  3.0″ x 19.19″ (76 x 487 mm)
Pump Gear type
Capacity @ governed rpm 18.0 gpm (68. 1 lit/min)
*With demand valve interconnection to loader hydraulic system. and mechanical follow-up linkage.
FILTRATION SYSTEMS
ENGINE
Lube oil  Full flow 25 micron
Fuel  Full flow 5 micron
Air cleaner ………………………… Dry type w/safety element
Coolant Filter conditioner
TRANSMISSION-TORQUE CONVERTER
Oil Full flow 25 micron
HYDRAULIC
Oil Full flow 25 micron
Full flow magnetic
Full flow wire mesh
Pressure-vacuum relief 40 micron element

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