Case CX27B Mini Excavator

Description:

The Case CX27B Mini Excavator offers a compact footprint with impressive digging power, making it ideal for residential construction, utility work, and landscaping. Its zero tail-swing design ensures safe operation in tight spaces without sacrificing performance.

Engine & Performance:

• Engine: Yanmar 3TNV82A-B diesel

• Net Power: 21.9 hp (16.3 kW)

• Displacement: 1.331 L (81.2 cu in)

• Fuel Tank Capacity: 11.1 gal (42 L)

Hydraulics:

• Hydraulic Flow (Main): 13.5 + 13.5 GPM (51 + 51 L/min)

• Relief Pressure: 3,133 psi (216 bar)

• Hydraulic System Type: Load-sensing with variable displacement piston pumps

Travel & Swing:

• Travel Speed: 1.3 mph (low), 2.7 mph (high)

• Swing Speed: 9.1 rpm

Key Dimensions & Specs:

• Operating Weight: 6,145 lbs (2,788 kg)

• Max Digging Depth: 8 ft 6 in (2.59 m)

• Max Reach at Ground Level: 15 ft 4 in (4.67 m)

• Bucket Digging Force: 5,842 lbf (26 kN)

Maintenance Highlights:

• Key Service Points: Fuel filter, oil filter, air filter, hydraulic reservoir

• Frequently Replaced Parts: Boom/arm cylinder seals, track tensioners, control valve o-rings

• Hydraulic seal kits for CX27B

• Final drive motors and sprockets

• Pins, bushings, and undercarriage parts

Common Issues & Quick Fixes:

• Hydraulic leaks: Typically from compacted dirt around the cylinder seals — replace with seal kits

• Track tension loss: Adjust idler spring or replace tensioner unit

• Starter failure in cold weather: Replace with OEM-compatible starter motors

Pro Tips:

• Always clean hydraulic quick couplers before connection to avoid contamination

• Keep the blade pivot greased — a common point of failure in tight turns

• Use only approved hydraulic fluid to extend system life

Serial Number Info:

• Serial number plate is located on the frame below the cab or on the left side near the track

• CX27B units start with NAB027B series