Case 860 Trencher – Specs, Parts & Maintenance Guide

The Case 860 Trencher is a powerful, ride-on turbo diesel trencher designed for high-demand trenching and utility installations. As part of Case's heavy-duty lineup, the 860 delivers deep trenching capability, extended reach, and robust torque through a turbocharged diesel engine and high-capacity hydraulic system.

Favored by contractors in sewer, telecom, and waterline applications, the 860 combines long trench depth, auxiliary hydraulic support, and attachment flexibility (such as backhoes, vibratory plows, and reel carriers), making it one of Case’s most versatile utility trenchers. Its articulated steering, hydraulic side-shift, and high ground clearance improve mobility and precision on job sites.

Specifications

Engine:

• Manufacturer: Deutz

• Model: F4L1011T

• Type: 4-cylinder, air-cooled, turbocharged diesel

• Horsepower: 83 hp (61.9 kW)

• Cooling System: Air-cooled with belt-driven fan

• Fuel Capacity: 18 gallons (approx.)

Trenching System:

• Max Trench Depth: 72–84 inches (depending on boom)

• Trench Width: 6–24 inches (interchangeable chain widths)

• Boom Type: Bolt-on tooth chain, heavy-duty design

• Side-Shift: Hydraulic side-shift standard

• Auger & Backfill Blade: Included

• Attachments: Backhoe, vibratory plow, rock wheel, reel carrier

Transmission & Drive:

• Drive Type: Hydrostatic articulated

• Travel Speed: 0–7 mph

• Steering: Hydraulic articulation

• Drive Modes: 2WD standard, 4WD optional (limited availability)

Hydraulic System:

• Flow Capacity: Up to 27 GPM

• Pressure Rating: 3,000 psi

• Controls: Mechanical lever or joystick

• Auxiliary Ports: Available for rear tool circuits

Dimensions:

• Operating Weight: ~8,200 lbs (3,720 kg)

• Length (with boom): ~165 in (4.19 m)

• Width: ~68 in (1.73 m)

• Height to ROPS: ~85 in (2.16 m)

• Wheelbase: ~68 in (1.73 m)

Maintenance Essentials

• Engine Oil & Fuel Filters: Replace every 250 hours
  Shop Deutz Filter Kits for Case 860

• Hydraulic Fluid & Filter Service: Recommended every 500 hours
  Buy Case 860 Hydraulic Filters

• Digging Chain, Sprockets, & Boom Teeth: Inspect after heavy use in rock or clay
  Browse Case Trencher Chains & Digging Parts

• Fan Belt & Air Cooling System: Clean fins and check belt tension frequently on turbocharged Deutz engines

• Grease Points: Focus on articulation joints, boom pivots, and auger bearings

Common Issues and Fixes

Hydraulic Overload or Hesitation:
Cause: Dirty return filter or low fluid
Fix: Replace with OEM Hydraulic Filter

Turbo Lag or Black Smoke:
Cause: Clogged air filter or damaged turbo seals
Fix: Clean filter or service turbocharger system

Chain Jam or Breakage:
Cause: Rock debris or worn digging teeth
Fix: Clear debris, install new chain and cutter teeth

Articulated Steering Slop or Drift:
Cause: Leaky steering cylinder or valve seals
Fix: Rebuild steering cylinder and flush hydraulic lines

Serial Number Information

• Location: Stamped on the left side of the main frame near the articulation point or engine bay

• Tip: Prefixes like “JAK” or “N7M” indicate production year and model variant (gas/diesel/turbo). Confirm before ordering engine parts or filters.