This Manitou America Z35 GEN:2 / 350Z NXT2 Service Manual (OEM #50940137) stays on one machine: your compact excavator, documented from engine internals out to final undercarriage assembly. Full hydraulic circuit schematics trace every operation, boom, arm, bucket, swing, travel, and the simultaneous multi-function flows that throw off a roadside diagnosis. Wiring diagrams cover the cabin, air conditioner, heater, and angle blade harness. More than 100 pages of step-by-step procedures handle hydraulic pump, control valve, swivel joint, and cylinder work. Need a torque figure? The tightening tables set the battery fixing bolt to 1.96 to 2.94 N·m, and the hydraulic ECU error code list explains a fault before you reach for a multimeter. When the excavator is down, factory answers beat forum guesses. Every section is bookmarked and the text is searchable, so the right page is two taps away.
What's Inside This Manitou America Z35 GEN:2, 350Z NXT2 Manual
| System | Pages | Key Topics |
|---|---|---|
| General Cautions for Maintenance Work | 10-21 | Correct Work, Safety Precautions, Preparations, Cautions for Disassembly and Reassembly, Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 22-53 | Specifications, Outline Drawing and Working Area, Weight List of Main Parts, Lifting Capacity List, Specifications for Attachment, Periodic Inspection and Servicing, Fuel |
| Service Standards | 54-87 | Machine Performance, Undercarriage (Rubber Crawler Specifications, Common Specifications of Rubber Crawlers), Controls, Hydraulic Equipment (Hydraulic Cylinders) |
| Engine | 88-257 | Engine Section, Fuel System, Cooling System, Lubrication System, Starter Motor, Alternator, Electronic Control System, Electric Wiring |
| Electric System | 258-293 | Electric Equipment of Machine (Parts Layout of Electrical Equipment, LCD Monitor and Alarm Systems) |
| Hydraulic System | 294-553 | Outline (Control Valve Operation, Additional Operation of Control Valve) |
| Adjustment and Repair | 554-711 | Engine and Electric Equipment (Removal Reinstallation: Starter Motor, Radiator and Oil Cooler, Fan Belt and Compressor Driving Belt, Engine ECU, Hydraulic ECU) |
| Troubleshooting | 712-727 | Non-Breakdowns |
| Appendix Wiring Diagram | 728-729 | Engine Speed Sensing, Cabin Spec, Air Conditioner Spec, Heater Spec, Angle Blade Harness |
| Back Cover | 730 | This Operator's Manual Is Provided For Operator Use, Do Not Remove From The Machine, California Proposition 65 Warnings, Manitou Americas Contact Information |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Tightening Torque List | Refer to '3-7 List of Tightening Torque' on pages 75-82 for machine, engine, general bolts/nuts, and hydraulic fitting torque specifications. | p. 75 |
| Error Code List | Refer to '5-5 Error Code List' on pages 286-292 for hydraulic error codes and corrective measures. | p. 286 |
| Battery type | 90D26R | p. 31 |
| Battery voltage - 5 hrs rate capacity | 12 - 55 V-Ah | p. 31 |
| Starter motor Type | Reduction type | p. 31 |
| Starter motor Nominal output | 12 - 1.7 V-kW | p. 31 |
| Alternator Type | Magnet | p. 31 |
| Alternator Nominal output | 12 - 55 V-A | p. 31 |
| Hose material (Plastic hose) | P | p. 17 |
| Recommended working pressure (Plastic hose) | 2489 to 2986 PSI (17.2 to 20.6 MPa) | p. 17 |
| Suction filter Filtration area | 108 sq.in. (697 sq.cm) | p. 27 |
| Suction filter Filtration accuracy | 150 meshes | p. 27 |
Manitou America Z35 GEN:2, 350Z NXT2 Common Problems This Manual Covers
Manitou Z35 GEN:2 or 350Z NXT2 engine cranks but will not start or turns over slowly p. 570
Test the 90D26R battery and the starter circuit. Pull the starter motor and measure the commutator outside diameter; replace the unit once it passes the 1.10 in. (28 mm) wear limit. Refit and torque the starter mounting bolts to 57.9 to 72.3 ft·lbf (78.5 to 98.1 N·m), per page 570.
Manual Section: EngineMain hydraulic functions become slow, jerky, weak, or make loud whining noises under load p. 43
Check the fluid level and top off to the 10.6 Gals. (40 L) hydraulic oil capacity listed on page 43. Inspect the return filter elements for clogging. Test the return filter bypass valve and replace the assembly if it opens below the 21.3 PSI (0.147 MPa) opening pressure specification on page 27.
Manual Section: Hydraulic SystemTracks run loose and derail frequently with loud squealing and excessive undercarriage roller wear p. 66
Measure the lower track roller play and the roller shaft diameter; replace any unit worn past the Ø3.11 in. (79 mm) limit found on page 66. Torque new roller mounting bolts to 151.9 to 180.8 ft·lbf (206 to 245 N·m) as directed on page 591.
Manual Section: Service StandardsTravel performance drops significantly and one track fails to drive properly or makes grinding noises p. 588
Clean the undercarriage and inspect the front idlers for seal leaks. Drain and refill the idler lube oil with exactly 0.074 Qts. (0.07 L) per side. Tighten the idler shaft CMP bolts to 32.6 to 43.4 ft·lbf (44.1 to 58.8 N·m) as specified on page 588 before testing travel operation.
Manual Section: Adjustment and RepairFrequently Asked Questions
How do I reset the fault code on a Manitou Z35 Gen 2 / 350Z NXT2?
On many fault codes, the corrective step is to turn the starter switch to “OFF” and then back to “ON,” then watch whether the code reappears. That cycle is part of clearing or verifying the fault.
How do I clear the error code on a Manitou 350Z NXT2 after an overload?
An “Abnormal engine speed: overspeed” warning can come from rotations driven by load on the implement side, an overload scenario. Inspect the engine, the body-side harnesses, and the rack actuator system, then cycle the starter switch from “OFF” to “ON” and see whether the code returns.
What does the hydraulic error code mean on a Manitou Z35 Gen 2?
Hydraulic codes appear throughout the manual. Code E1 026112.12, for instance, flags a “Hydraulic ECU malfunction” traced to arbitration port failure, defective ROM, broken RAM, or an initialization failure. Fixes range from checking the connectors and harnesses to rewriting the hydraulic ECU software, and replacing the ECU if the fault holds.
What are the torque specifications for the Manitou Z35 Gen 2 track frame bolts?
Both swing-bearing joints, lower frame and turning frame, use M14×65 bolts torqued to 181 to 195 ft·lbf (245 to 264 N·m) with Loctite 262 or K-965. The swivel joint to track frame M10×40 bolts call for 32.6 to 43.4 ft·lbf (44.1 to 58.9 N·m) with ThreeBond 1324.
How will I receive this Manitou America Z35 GEN:2, 350Z NXT2 Service Manual?
Delivery is an instant PDF download. The full 730-page searchable manual is yours the moment payment clears, ready to open on a laptop, tablet, or phone right in the shop.
Am I able to print pages from this Manitou America Z35 GEN:2, 350Z NXT2 manual?
Yes. There is no DRM or copy protection, so print the whole manual or just the pages you need on any home or office printer.
Are there hydraulic schematics in this Manitou America Z35 GEN:2, 350Z NXT2?
It does. Hydraulic circuit diagrams, system schematics, and component specs with pressure ratings are all included.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy the full text. The text is generally crisp and readable throughout. Diagrams and illustrations appear to be scanned images, which means some fine details may pixelate when zoomed in, though labels are mostly clear. Pages are clean with minimal scan artifacts or marks, but some exhibit slight skewing. You will find several blank pages interspersed, which serve as section dividers or placeholders.












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