Service Manual

325/328 Excavator
Operation and Maintenance Manual 112
Hydraulic Cylinders
Drive System
Traction
Boom cylinder Cushion up
Boom cylinder bore 76 mm
Boom cylinder rod 41 mm
Boom cylinder stroke 424 mm
Dipperstick cylinder Cushion extend
Dipperstick cylinder bore 76 mm
Dipperstick cylinder rod 38 mm
Dipperstick cylinder stroke 485 mm
Bucket cylinder No cushion
Bucket cylinder bore 64 mm
Bucket cylinder rod 35 mm
Bucket cylinder stroke 466 mm
Boom swing cylinder Cushion left and right
Boom swing cylinder bore 60 mm
Boom swing cylinder rod 35 mm
Boom swing cylinder stroke 400 mm
Blade cylinder No cushion
Blade cylinder bore 70 mm
Blade cylinder rod 38 mm
Blade cylinder stroke 195 mm
Travel motor Each track is driven by a hydrostatic axial piston motor
Drive reduction Two-stage planetary gear reduction 44.3:1
Track width, rubber, standard 320 mm
Track width, steel, optional 300 mm
Track adjusters Grease type with shock absorbing recoil springs
Track type, standard Half-pitch, rubber
Track type, optional Steel
Travel speed, low range 1.9 km/h
Travel speed, high range 3.1 km/h
Undercarriage Crawler-type tractor design with reinforced box-section track roller
frame and sealed track rollers
Number of track rollers per side 3
Gradeability 30°