From the first bolt to the last circuit, this 400-page service manual (OEM #50940107) hands you factory procedures for the Manitou America Z17/170Z compact excavator. Hydraulic circuit schematics map full control valve operation and relief valve pressure adjustment, while the wiring diagrams walk through monitor and alarm systems, engine start/stop logic, and battery charging circuits. Troubleshooting charts run 30 pages and target real failure modes: discontinuous arm movement, upperstructure drift on quick travel, and thermal shock of the travel motor. Another 29 pages of hydraulic procedures cover pump removal, swing motor rebuild, and swivel joint service. Torque the M10 × 1.5 coarse thread bolts to 44.1–58.8 N•m; the hydraulic hose G 1/4 parallel thread fittings run 22.6–27.5 N•m. Bookmarked and searchable on any device, so you can jump straight to the section you need.
What's Inside This Manitou America Z17/170Z Manual
| System | Pages | Key Topics |
|---|---|---|
| Forward | 3-8 | California Proposition 65 Warning, Diesel Engine Exhaust Warning, Battery Lead Compounds Warning |
| General Cautions for Maintenance Work | 9-20 | Correct Work, Safety Precautions, Preparations, Cautions for Disassembly and Reassembly, Cautions for Removal and Installation of Hydraulic Equipment |
| Technical Data | 21-32 | Specifications, Outline Drawing and Working Area, Weight List of Main Parts, Lifting Capacity List |
| Engine | 53-90 | Exploded View, Measurement |
| Hydraulic System | 91-126 | Outline (Control Valve Operation, Additional Operation of Control Valve), Hydraulic Circuit Schematic (For Standard Type Machines) |
| Hydraulic Equipment | 127-264 | Removal and Reinstallation of Hydraulic Pump, Removal and Reinstallation of Control Valve, Removal and Reinstallation of Swing Motor, Removal and Reinstallation of Swivel Joint |
| Adjustment and Repair | 265-354 | Electric Equipment of Machine (Parts Layout of Electrical Equipment, Monitor and Alarm Systems, Wiring Diagram, Circuit Description of Engine Start and Stop, and Battery Charging, Removal and Reinstallation of Engine, Removal and Reinstallation of Starter Motor, Removal and Reinstallation of Fuel Injection Pump, Removal and Reinstallation of Fuel Tank, Removal and Reinstallation of Radiator) |
| Periodic Inspection and Servicing | 355-357 | List Of Periodic Inspection And Servicing |
| Fuel, Lube Oil and Grease Recommended | 358-360 | Fuel, Lube Oil And Grease Recommended |
| Troubleshooting | 361-396 | Non-Breakdowns, Natural Release Of Bucket, Discontinuous Arm Movement, Drifting Of Upperstructure On Quick Travel Operation, Thermal Shock Of Travel Motor |
| Reference Data | 397-400 | Specifications For Attachment, California Proposition 65 Warnings, Diesel Engine Exhaust Warning, Battery Lead Compounds Warning |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Tightening torque for Hexagon head bolt (7T) Nut Coarse thread M10 × 1.5 | 32.6 to 43.4 ft•lbf (44.1 to 58.8 N•m) | p. 51 |
| Starter motor mounting bolt (M10) Tightening torque | 32.5 to 43.4 ft•lbf (44.1 to 58.8 N•m) | p. 87 |
| Battery voltage - 5 hrs rate capacity | 12-40 V-Ah | p. 28 |
| Suction filter Filtration accuracy | 150 Meshes | p. 25 |
| Tightening torque for parallel pipe thread G (PF) 1/4 | 16.7 to 20.3 ft•lbf (22.6 to 27.5 N•m) | p. 52 |
| Track roller & shaft B Wear limit | 2.48 (63) in. (mm) | p. 43 |
| Idler & shaft B Wear limit | Ø1.02 (Ø26) in. (mm) | p. 42 |
| Allowable clearance for Front Attachments pins and bushings | 0.04 in. (1.0 mm) | p. 46 |
| Allowable clearance for Bucket fulcrum pin and bore of bush or hole | 0.04 in. (1.0 mm) | p. 46 |
| Fuse A pcs. | 15x3, 40x1, 15x1 | p. 28 |
| Hydraulic oil tank capacity | 6.86 Gals (26 L) | p. 25 |
| Engine oil pan capacity | 3.0 Qts. (2.8 L) | p. 359 |
Manitou America Z17/170Z Common Problems This Manual Covers
Manitou Z17 hydraulic pump grinding noise after 2000 hours, bucket won't lift
Start with the hydraulic fluid level; tank capacity is 6.86 Gals (26 L) and running it low starves the pump immediately. Inspect suction and return filters for restriction. Connect a gauge at the pump test port and confirm main relief pressure reads 2986 PSI (20.6 MPa) per page 23. Grinding paired with low pressure usually points to worn internal pump components needing rebuild or replacement.
Manual Section: Hydraulic Pump TroubleshootingEngine cranks but won't fire, or turns over slowly in cold weather conditions p. 87
Test battery voltage and cable connections first; rated capacity is 12V/40Ah, and a weak or corroded battery is the most common culprit. Inspect the safety interlock switches and all fuses. If the battery tests good, pull the starter motor and bench-test it. Reinstall starter mounting bolts to 32.5 to 43.4 ft•lbf (44.1 to 58.8 N•m) per page 87.
Manual Section: Adjustment and RepairTracks too loose or too tight, undercarriage wearing out faster than expected p. 43
Inspect track sag at the center span and adjust the tensioner grease fitting until tension is correct. Measure each roller shaft against the wear limit of 2.48 in. (63 mm) on page 43. Compare idler shaft diameter to the wear limit of Ø1.02 in. (Ø26 mm) on page 42. Clear compacted mud and debris from the undercarriage after every shift.
Manual Section: Travel Equipment TroubleshootingMachine overheats and loses power under load, temperature gauge climbing into red p. 367
Confirm the coolant level; radiator capacity is 2.8 Qts. (2.7 L). Inspect the radiator and hydraulic oil cooler for debris and blow them clean with compressed air. Verify the thermostat opens at 159.8°F (71°C); a stuck-closed unit causes rapid overheating. If power loss rides along with the heat, work through the machine troubleshooting chart starting on page 367.
Manual Section: Machine and Engine Troubleshooting (General Charts)One or more electrical accessories dead, monitor warning lamp on, gauge readings blank
Open the fuse panel first; this machine runs three 15A fuses, one 40A main fuse, and one additional 15A fuse. A blown fuse points to a short in that circuit branch. Pull the wiring diagram and trace back from the failed component. Inspect each connector for corrosion and verify charging voltage at the battery terminals.
Manual Section: Electrical Equipment on Panel TroubleshootingBucket linkage pins grinding and showing visible slop at attachment pivot points p. 46
Grease every bucket linkage pivot daily through the Zerk fittings until fresh grease purges at each joint. Measure pin-to-bushing clearance at all front attachment pivots; replace any pair exceeding 0.04 in. (1.0 mm) clearance per page 46. Skipping grease intervals is the main driver of accelerated pin and bushing wear on compact excavators.
Manual Section: Adjustment and RepairFrequently Asked Questions
What are the torque specs for Manitou Z17/170Z wheel nuts/fasteners?
With crawler tracks rather than wheels, the Z17/170Z has no wheel-nut spec to quote. The closest equivalent the manual lists is the track roller tightening nut (M12) at 57.9 to 72.4 ft•lbf (78.5 to 98.1 N•m), set with Three Bond 1324 adhesive.
What are the replacement specifications for starter motor?
Model RA1.4 is the starter fitted to the Z17/170Z, rated at 1.4 kW and running on 12V. Torque its mounting bolt (M10) to 32.5 to 43.4 ft•lbf (44.1 to 58.8 N•m).
What are the replacement specifications for battery?
The Z17/170Z takes a 65B24L battery: 12V with a 5-hour rate capacity of 40 V-Ah. Torque the battery holding rod (M6 nut) to 1.45 to 2.17 ft•lbf (2.0 to 2.9 N•m), and the lock nut to 3.62 to 4.34 ft•lbf (4.9 to 5.88 N•m).
What format is this Manitou America Z17/170Z manual in?
It's a 400-page searchable PDF, ready to download the moment you order. Open it on any device, including your phone out at the machine. Nothing ships and nothing waits.
Can I print this Manitou America Z17/170Z manual?
Yes. There's no DRM or copy protection, so print the whole manual or just the pages you need on any home or office printer.
Can I find wiring schematics in this Manitou America Z17/170Z manual?
Full wiring diagrams are included, mapping the electrical circuits, harness routing, and connector pinouts on the Manitou America Z17/170Z.
Document Quality
This document is a scanned copy of a printed service manual. An OCR layer has been applied, allowing you to search and copy the full text, which appears crisp and easy to read on every page. Diagrams and illustrations are clear raster images, with all labels generally legible, though they may pixelate slightly at very high zoom. The pages are clean, with no notable scan artifacts, stains, or skewed content, and pages 2 and 4 are intentionally blank.
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