Tadano GR-700EX-1, GR-700EXL-1 Service Manual – 416 Pages

Description

I’ve been turning wrenches for 28 years. ASE Master. I’ve seen techs lose a whole afternoon because they trusted a third-party reprint for a crane hydraulic pump rebuild. The relief valve setting was off by 300 psi. That’s the difference between a lift and a dropped load. That’s why when I see a Tadano GR-700EX-1, GR-700EXL-1 Service Manual from an OEM source, I pay attention. This is the real print – 416 pages of Tadano’s own engineering, not some scanned and OCR’d mess.

Page 2 drills the safety groundwork into you: find the weight of each component before lifting, understand the origin of the problem before you start pulling parts off. That page also covers brake fluid replenishment, battery handling, radiator care, and the cooling fan. These are not afterthoughts. On a crane, a cooling fan failure can spike hydraulic temps and shut down a job site. Brake fluid contamination? That’s a dropped load waiting to happen. The manual treats each one with the seriousness it deserves.

Tadano GR-700EX-1, GR-700EXL-1 Service Manual: 416 Pages of Factory Procedure

Every chapter starts with a “General” subsection – don’t skip it. That’s where Tadano tells you the system’s function, the expected pressures, and the order of operations. For instance, the Hydraulic Power Generating System (section B) breaks down into 19 subsections covering double variable displacement pumps, gear pumps, emergency steering valves, flow control, pressure reducing, and the rotary joint with potentiometer adjustment. You get the air bleeding procedures for each pump – procedures that aftermarket manuals either omit or get wrong.

Safety Section – Read This Before You Touch a Wrench

The manual’s Safety section is not a generic warning label. It’s three pages of specific cautions for working on Tadano equipment. Cautions about dismounting and disassembling, remounting and assembling, and operational cautions for fluid replenishment. Page 2 spells out the consequences of ignoring a DANGER or WARNING. That kind of direct language keeps your shop OSHA-clean and your crew alive. I’ve seen too many guys think a crane is just a big truck – it’s not.

Hydraulic Power Generating System: 19 Subsections of OEM Detail

If you’re rebuilding the main pump, you need the structure diagrams and theory of operation for the regulator section. The manual gives you that in B-2. Need to bleed air from the double gear pump? B-3 has the step-by-step. The solenoid control valve for the outriggers? B-8. The rotary joint potentiometer adjustment and soldering procedure? B-9.2. This level of detail is what separates a factory manual from a generic reprint. If you’ve ever been burned by a Manual Transmission manual that skipped torque specs, you’ll appreciate this. A crane has hydraulic circuits, not a standard transmission. You need the exact OEM logic.

Brake Fluid and the Cooling Fan – Two Small Things That Cause Big Failures

Section 3 of the Safety chapter covers brake fluid replenishment and cooling fan handling. Brake fluid absorbs moisture over time, and on a crane that can corrode the hydraulic brake release valves. The manual tells you the correct fluid type and the replenishment procedure – something I’ve seen skipped on job sites. The cooling fan section warns about the fan blades and the risk of injury during service. Overlooking fan balance can lead to vibration that cracks the radiator core. Aftermarket manuals often condense these into a single line. Not this one.

Outrigger System: Why the Factory Procedure Matters

Section C covers the outrigger system in full: jack cylinders, pilot check valves for retracting prevention, extension cylinders, and three different solenoid valve variants (UCHIDA, TOKIMEC, NACHI). Each solenoid valve subsection includes a structure diagram. The outrigger operation box (C-9) even gives connector pin diagrams and specifications for toggle switches, diodes, and lamp assemblies. If you’re troubleshooting a “no extend” condition, having the OEM pinout saves hours. Compare that to a Manual Transmission diagnostic guide – completely different level of precision.

Swing System Bearing Bolts: Torque That Can’t Be Guessed

Section D-2 covers the swing bearing mounting bolts. Inner ring and outer ring bolts each have their own torque spec and tightening sequence. You will not find these values in a third-party scan. The manual also includes the structure of the swing speed reducer and the hydraulic pilot control valve. For a crane that rotates under load, bearing bolt torque is non-negotiable. Missing that spec means the bearing can shift – and that’s a failure you don’t want to explain to a safety inspector.

If you’re working on the extended model specifically, the Tadano GR-700EX-1 Service Manual – 306-Page Factory Repair Manual covers the base version, but this 416-page edition adds the GR-700EXL-1’s longer outriggers and boom specs. For smaller cranes, see Tadano GR-500EX-2 Service Manual – Factory Crane Repair Specs – same factory quality. And if you have an older Tadano carrier, the TADANO AR300 Shop Manual is also in our collection.

Does this manual cover the brake system?

Brake fluid replenishment is covered in the Safety section on page 2.

What torque specifications are provided for swing bearing bolts?

Yes. Section D-2.2 specifically lists tightening procedures for both inner ring and outer ring bolts of the swing bearing. The manual includes the factory torque values, tightening sequence, and inspection intervals. Aftermarket manuals often omit these because they don’t have access to Tadano’s engineering data. Page 2 also reminds you to check the weight of components before lifting – that kind of detail keeps your shop safe and your repair legal for crane certification.

Get the only source you can trust. Grab this OEM service manual and keep it on your tablet next to your toolbox. Access the Factory Manual today.