Description

Sandvik Tamrock Secoma S.a.s THC 700 2003 Technical Manual

Sandvik Tamrock Secoma S.a.s THC 700 2003 Technical Manual — 108 pages of factory engineering data straight from Tampere. I wrote this because I am tired of seeing guys try to set up a THC 700 drilling rig with aftermarket copied documentation. That nonsense gets people hurt. You need the valve block layout? Page 10 shows it. The anti-jamming valve adjustment procedure? Page 20 has the step-by-step.

Valve Blocks: Percussion and Feed Control

Section 4 breaks down each valve block separately. Percussion and feed control block, feed directional valve, feed pressure regulating valve, rotation control valve, rotation speed adjustment block, threading valve block, hydraulic oil warm-up valve, anti-jamming valve, Ranger 800-2 feed motor, dust collector pump pressure relief valve. Each one gets its own subsection with cross-section diagrams and pressure port locations. If you have tried to identify a valve by looking at a generic diagram, you know how bad that gets. This manual labels the components with reference numbers that match the parts list.

Adjusting Rotation Valve Pressures the Right Way

Chapter 7.4 covers adjusting rotation valve pressures. You get the procedure for the rotation pressure relief valve (55) and valves (60) and (61). The manual tells you which pressure gauge to use and where to tee it in. It lists the required pressure range in bar and the adjustment screw direction. Aftermarket manuals leave out the initial stand-by pressure check. This one does not. They also include the safety lockout procedure before you crack any hydraulic line.

What the Troubleshooting Section Covers

Troubleshooting runs through ten pages of diagnostics. It covers variable displacement pumps not rotating, percussion not working at all, percussion not stopping, feed movement issues, rotation pressure too low. Each symptom has a numbered list of possible causes and the test point to verify. For example, “Percussion does not stop” directs you to check the percussion main valve (3) spring adjustment and the percussion pressure switch (12). You are not guessing. You are following the factory flowchart.

Sandvik Tamrock Secoma S.a.s THC 700 2003 Technical Manual: 108 Pages of Factory Data

This is not a reprint. This is the original PDF from Sandvik Tamrock. Every page has the Tamrock Corp. header with the document number C 52930 – 7 en 1003 / MAH. The manual covers the complete drilling hydraulics system for the THC 700. 108 pages, dated 2003. You get the safety section, controls and instruments, valve blocks, components, operation of system, adjustments, hydraulic oil filtration system, oil cooling system, and troubleshooting. That is everything you need to test and adjust the hydraulics without calling the dealer.

Why OEM Documentation Beats Aftermarket Reprints

I have seen aftermarket manuals that omit the hydraulic oil warm-up valve section. They skip the anti-jamming valve adjustment. They copy the diagrams so poorly that port labels are unreadable. With this manual, you get the original line art. The pressure settings are stated with tolerances. The adjustment procedures include the order of operations — which valve to set first, which to set last. That matters because the hydraulic system is interconnected. Set the percussion max. pressure before the half-power percussion valve or you will chase settings all day. The factory knows the sequence. The aftermarket does not.

If you work on other Sandvik models, check the SANDVIK TAMROCK AXERA 5 THC560 Service Manual 2005. For crane hydraulics, the Drogobych Crane KTA-16/25/28 2004 Installation Manual – Section: Общие Указания covers similar pressure adjustment logic. And for modular multi-equipment setups, see MODULOS DISPONIBLES PARA EL MULTIEQUIPO CJ EURO.

Understanding hydraulic valve sequencing is like learning the shift pattern of a Manual Transmission — once you know the order, everything makes sense. The pressure relief valve acts like a Manual Transmission governor, limiting the maximum force.

Frequently Asked Questions

Does this manual include torque values for valve block bolts?

Yes, each valve block mounting bolt torque is listed in the component section.

How do I identify the correct pressure relief valve for the rotation circuit?

The manual labels each valve with a reference number in parentheses, like rotation pressure relief valve (55). On page 10, the valve block diagram shows the location. Then in Section 7.4.1, the adjustment procedure tells you which port to gauge and the exact pressure range. You can confirm the valve by checking the stamped number on the valve body against the component list in Section 5. If the valve has been replaced with a non-OEM part, the manual cannot guarantee the settings because the factory specs are calibrated to the original Sandvik Tamrock valves. Always use OEM replacement valves for the THC 700 to match the documentation.

If you are ready to get the hydraulics on your THC 700 set up to factory spec, do not waste time with copies. Access the Factory Manual from AutoRepairManuals and get the pages that the technicians in Tampere wrote.