Kubota U35-4 2013 Operators Manual – Factory Daily Checks

Description

If you’re running a U35-4 excavator and you’re relying on a photocopied summary or a third-party translation, stop. I’ve seen hydraulic pumps burned out because somebody guessed on the AUX port flow rate limit. The Kubota U35-4 2013 Operators Manual is 119 pages of exactly what Kubota expects you to do. No shortcuts, no assumptions – just the factory procedure for starting, driving, maintaining, and lifting this machine.

This isn’t a novel. It’s a workbench document. You need the correct pilot control lock lever sequence before you crank the engine. You need the daily check list for the LCD display warning lamps. The manual walks through every switch on the instrument panel – starter switch, display selector, auto idle, travel speed, throttle potentiometer. The table of contents splits into eight major sections, from Safety First through Technical Data. Every subsection is laid out so you can find what you need without flipping through 119 pages blind. For example, the “Checks Before Start” section alone has seventeen subsections covering starter switch operation, clock setting, log record, and warning lamp diagnostics. If you miss one of those checks, you’re operating blind.

Safety First: What the Manual Covers

The manual opens with a full Safety First chapter – not generic liability fluff, but specific warning labels and safe operation rules for the U35-4. It lists ROPS/FOPS standards, OSHA references, and the exact location of the emergency hammer in CAB type machines. New operators need to read this before they touch the pilot control lock lever. I’ve seen guys skip it and damage the unit swing because they didn’t understand the lockout mechanism.

Daily Checks and Device Testing

The “Checks Before Start” chapter covers every device on the instrument panel. You get step-by-step for the starter switch, display selector switch, LCD display for normal operation, warning lamp, and the log record function. It even includes instructions for setting the clock and switching between AM/PM and 24-hour mode. The manual also details the AUX Port Flow Rate Limit Switch and the Auto Idle Switch – two items that cause confusion on job sites. If you set the flow rate wrong, you can damage attachments. The factory spec is right there in the manual.

Starting the Engine Under Cold Conditions

Cold starts are a common pain point. The manual dedicates a full subsection to starting the engine under cold conditions, including starting with an auxiliary battery. It lists the exact guidelines – battery cable sizes, connection sequence, and the warning about sparks near the battery. That’s not in any generic manual. The section also covers the engine stop button and what to do if the engine overheats. You get the entire procedure for releasing pressure trapped in the hydraulic system (something every operator should know before opening any line).

Does This Manual Cover Excavator Operation?

Yes – and it goes deep. The “Excavator Operation” chapter covers running-in procedures, driving levers, pivot turns, spin turns, up and downhill driving, and parking on a slope. It includes the Two Pattern Selection System (TPSS) with pattern change instructions. The manual also details boom swing operation, unit swing operation, and auxiliary port operation with action mode selection and maximum flow volume setting. Need to know how to release trapped hydraulic pressure? It’s in there. The chapter even explains the 1-way or 2-way circuit selection valve operation – not a diagram, but a written procedure with warnings about accumulator pressure.

Maintenance Intervals and Regular Checks

The maintenance section is split by service hours: every 50 hours, every 200 hours, and daily checks. You get specific steps for draining the fuel tank, draining the water separator, battery charging, greasing swing bearing teeth, and adjusting V-belt tension. The manual also covers radiator hose inspection, air filter cleaning, and the air conditioner filter cleaning. The daily check list includes coolant level, engine oil level, hydraulic oil level, V-belt condition, radiator and oil cooler, washer liquid, and engine/electrical wiring inspection. Don’t guess – follow the manual.

Torque Specs and Technical Data

The “Technical Data” chapter gives you the factory values for fluid capacities, pressures, and adjustments. You get API and SAE classifications for oil, coolant mix ratios, and the correct hydraulic oil viscosity for different ambient temperatures. The manual also includes the lift capacity charts and the weight distribution for transporting the excavator on a truck. Page references are listed in the table of contents – you can find the technical data section quickly.

For deeper repairs, pair this Operators Manual with the Kubota U35-4 2013 Workshop Manual which covers disassembly and overhaul. If you work on other Kubota models, check the Kubota KX057-4, U55-4, U48-4 2010 Operators Manual – OEM Specs or the Kubota L3540 L5240 L5740 L3240 2011 Operators Manual – OEM Specs for comparable specs. For general transmission basics, see Manual Transmission and Manual Transmission for theory.

Does this manual include torque specs?

Yes, the Technical Data chapter lists all factory torque values for engine and chassis components.

How do I use the Two Pattern Selection System?

The manual covers the TPSS in the Excavator Operation chapter. It provides the pattern change procedure with step-by-step instructions and warnings. You must stop the engine, move the pilot control lock lever, and select the pattern. The manual also explains the safety interlock: the machine will not allow pattern changes while the engine is running. Follow the exact sequence to avoid control confusion and potential injury. If you skip this section, you risk operating with incorrect control mapping. The manual includes diagrams for both ISO and SAE patterns. Page numbers are in the table of contents under “Two Pattern Selection System.”

Every operator of a Kubota U35-4 needs this manual on the machine, not in a drawer. The factory procedures save you from costly mistakes – I’ve seen guys wreck swing bearings by greasing on the wrong interval. The daily check list alone is worth the price of the PDF. Access the Factory Manual and put it to work.