How to Operate a Mini Excavator: Guide for a Bobcat E42 Rental

Bobcat E42 Rental Guide for Operating a Mini Excavator

At least half of the Bobcat® excavators you see on job sites are rentals. Why? Because they’re easy to operate, they’re powerful, and they’re perfect for short-term projects. If you’re a contractor or a DIYer and you’re renting a Bobcat E42, here’s how to operate that mini excavator!  

Bobcat E42: Why Rent It?

The Bobcat E42 is a 4.8-ton mini excavator. It fits where bigger machines can’t, but it’s also powerful. It can handle anything from trenching to demolition. Most people choose the E42 mini excavator because they need: 

• 42.6 hp engine  

• Max dump height of
  13.7 ft

• Dig depth of 12.4 ft
  

• Attachment options (buckets, breakers, post-hole augers, etc.) 

If you’re debating between the E42 and a smaller model, consider your job site. If you need maneuverability, go smaller. If you need power and reach, the E42 is your best bet. 

Bobcat E42 Controls: What You Need to Know

Bobcat’s dual-joystick system was made for precise movements. But don’t worry if you’re used to different control styles. You can easily switch between ISO and SAE patterns. This can save a lot of time, especially if multiple operators will be using the machine. 

Push both handles forward to drive ahead. Pull back to reverse. To turn, push one forward while pulling the other back. 

Pre-Operation Checklist

Before you start digging, do a quick walkaround check. Here’s a couple key components to look at:

1. Fluid Levels

• Check engine oil, hydraulic fluid, and coolant 

• Look at the fuel-water separator (If there’s a floating red ring, there’s water in your fuel system. Fix that before starting the machine)

2. Hydraulic System

• Inspect for leaks or damage: 

• • Hoses 

• • Cylinders 

• • Seals  

3. Undercarriage

• Make sure your track tension is correct (Too loose, and it could derail. Too tight, and you’ll see more wear and tear on the machine) 

• Remove any debris caught in the undercarriage 

4. Engine Compartment

• Look for loose belts, damaged hoses, or disconnected wiring 

• Check radiator fins for clogs and secure all latches before starting

5. Safety Features

• Test the seat belt and horn  

• Check the lights 

• Check the glass in the door and windows, if equipped 

• Check heat and A/C, if equipped
  

Starting Your Mini Excavator

To start the excavator, sit in the operator’s seat and fasten your seat belt. Make sure the hydraulic lockout is engaged (left control console is raised). Make sure the throttle is set at low idle. Turn the key to start the engine. If it’s cold, use the glow plugs. Once the machine’s running, let the engine warm up for a minute before starting your work. 

Mini Excavator Operating Techniques

How to Position the Machine 

• Dig anywhere from 35° to 45° in front of you 

• Park on stable ground to prevent shifting 

• For better reach, dig diagonally across corners instead of straight ahead 

• Lower the backfill blade. It should slightly raise the front of the excavator off the ground. The blade should be placed in front of you. 

How to Work on a Slope 

• Always drive straight up and down—never sideways. 

How to Do Trench Work 

• Start at the top and work in layers. This will go faster than digging straight down. 

• The bucket curl force is 10–15% stronger than the stick crowd force. 

• Use the depth check system to maintain consistent trenching.  

How to Use a Bucket with a Thumb 

• Use the hydraulic thumb to grip and secure the materials. Adjust pressure as needed to avoid crushing softer loads. 

• Tilt the bucket slightly when picking up objects. This will give you a stabler hold and smoother motion. 

• To place the materials, open the thumb gradually. Dump the load, and repeat. 

Shutting Down & Storing Your Mini Excavator

Let the engine idle to cool down. Then, lower the boom and bucket flat to the ground. Set all controls to neutral and turn off the engine. Move the control levers to release any remaining hydraulic pressure. Lift the hydraulic control console—this will disengage everything safely.  

If you have a long-term rental that goes through the winter, store the machine by placing wooden boards under the tracks to prevent freezing. Keep the machine stored indoors if possible. If temperatures drop below -5°F, switch to 100% Grade 1 diesel for better cold-weather performance, and use a diesel fuel winterizer. 

Learn More & Get Started

Bobcat E42 Compact Excavator

Take on more complex tasks with the precise performance, comfort and versatility of the E42 compact excavator.

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Rental Details

$385

Per Day

$1,155

Per Week

$2,772

Per Month

Key Specs

Horsepower 42.6 hp

Operating Weight 10,666 lb

Bucket Digging Force 9,601 lbf

Maximum Reach at Ground Level 19.1 ft

Width 72.8 in

Tail Swing Type Conventional

Fuel Tank 19 gal

Auxiliary Std Flow 20 gal/min

Auxiliary Pressure 3,045 psi

Length 201.3 in

Overall Length in Travel Position 201.3 in

Width 72.8 in

Height 99.1 in

Height with Operator Cab 99.1 in

Air Conditioning Optional

Cab Enclosure Optional

Cab Heater Optional

Heater Air Conditioning Optional

Radio Optional

Tail Swing Type Conventional

Engine Shutdown Standard

Auxiliary Hydraulics Standard

Secondary Auxiliary Hydraulics Optional

Quick Tach System Standard

Rubber Track Standard

Selectable Auxiliary Hydraulic Flow Standard

Angle Blade Optional

Performance

Operating Weight 10,666 lb

Weight Class 4.8 t

Travel Speed - High 3.3 mph

Travel Speed - Low 1.6 mph

Arm Digging Force 5,852 lbf

Bucket Digging Force 9,601 lbf

Rated Lift Capacity 4638 lb

Lift Radius 118 in

Boom Swing - Left 75°

Boom Swing - Right 50°

Maximum Dig Depth 12.4 ft

Max Dump Height 13.7 ft

Maximum Reach at Ground Level 19.1 ft

Emissions Tier (EPA) Tier 4

Engine Fuel Diesel

Maximum Governed RPM 2,200 rpm

Horsepower 42.6 hp

Turbocharged Engine yes

Optional Turbocharged Engine N/A

Time to Operate Your Mini Excavator!

Go dig some dirt! If you run into questions as you’re operating your Bobcat E42, reach out to our Rental team. And if you’re interested in renting a Bobcat E42 mini excavator, call your nearest KC Bobcat location today!