Part of the New Holland Repair Manuals.
Built for the New Holland E33C mini excavator in canopy form, this is manual 51691657, the English edition dated November 2019. It runs from the Yanmar 3TNV88F-ESHYB engine back through the pump, valve, swing and travel motors, undercarriage, cylinders and electrics.
It gives the counterweight mounting bolt torque as 482.8 - 653.4 N·m (356.1 - 481.9 lb ft). It also lists torques for the swing motor, swing bearing and travel motor mounting bolts. The hydraulic schema carries the relief valve pressures.
Total hydraulic system capacity is printed as 70 L (18.5 US gal), and fold-out electrical and hydraulic schematics close the book.
What's Inside This New Holland E33C Manual
| System | Pages | Key Topics |
|---|---|---|
| Introduction and Specifications | 1-48 | Safety, Special Torque Settings, Machine Specifications, Weights and Dimensions, Fluids and Lubricants, Product Identification |
| Engine | 49-306 | Engine Overhaul, Valve Train, Cylinder Head, Pistons and Crankshaft, Fuel System, Air Intake and Exhaust, EGR, Cooling and Lubrication |
| Hydraulic Systems | 307-380 | Hydraulic Circuits, Hydraulic Troubleshooting, Pressure Release, Cylinder Drift Tests, Oil Reservoir, Oil Cooler |
| Hydraulic Pump and Main Control Valve | 381-470 | Variable Displacement Pump Construction, Removal, Overhaul and Adjustment, Main Control Valve, Relief Valves, Valve Troubleshooting |
| Pilot System and Controls | 471-600 | Pilot Solenoid Valve Block, Pilot Accumulator, Safety Switch, Hand Control Valves, Proportional Controls, Foot Control Valves |
| Hydraulic Swing System | 601-652 | Swing Motor, Parking Brake, Relief Valves, Make-Up Valve, Planetary Reduction Gear, Swing Troubleshooting |
| Hydraulic Travel System | 653-736 | Travel Motor, Counterbalance Valve, Two-Speed Mechanism, Travel Brake, Travel Troubleshooting, Hydraulic Central Joint |
| Boom, Dipper, Bucket and Dozer Cylinders | 737-860 | Boom, Dipper and Bucket Cylinders, Quick Coupler, Hammer and Rotating Bucket, Boom Swing Cylinder, Dozer Blade Cylinder |
| Frames and Ballasting | 861-870 | Counterweight Removal and Installation, Lifting Points, Counterweight Mounting Bolts |
| Tracks and Track Suspension | 871-918 | Drive Sprocket, Track Replacement, Track Tension, Recoil Spring, Front Idler, Track Rollers |
| Electrical Systems | 919-1024 | Component Identification, Power, Starting and Charging Circuits, Lighting, Monitoring, Auto Idle, Auxiliary Controls |
| Harnesses, Connectors and Wiring Diagrams | 1025-1204 | Harness Routing, Connector Identification, Wire Colors, Schematic Symbols, Electrical Schematic Sheets, Connector Pin Assignments |
| Engine Controls, Starting and Charging | 1205-1302 | Accelerator Controls, ECU, Starter Motor, Alternator, Battery, Fuel Level Sensor, Temperature Sensors, Oil Pressure Switch |
| Cab Controls and Lighting | 1303-1334 | Cab Switches, Attachment Controls, Work Lights, Lighting Switches, Relays, Indicators and Instruments |
| Fault Codes (DTC) | 1335-1438 | Oil Pressure, Coolant Temperature, Supply Voltage, Fuel Rack Actuator, EGR, CAN Communication, Immobilizer and ECU Fault Codes |
| Booms, Dippers and Buckets | 1439-1480 | Boom Pivoting Support, Boom, Dipper Arm, Bucket, Pins and Bushings, Removal and Installation |
| Dozer Blade and Arm | 1481-1490 | Blade Pins and Bushings, Service Limits, Blade Removal and Installation |
| Platform, Cab, Bodywork and Decals | 1491-1546 | Platform Removal and Installation, Canopy, Operator Seat, Engine Hood, Side Panels |
| Fold-Out Electrical and Hydraulic Schematics | 1547-1550 | E33C Electrical Schematic Sheets 1/2 and 2/2, E33C Hydraulic Schematic Sheets 1/2 and 2/2, Component Legends, Relief Valve Pressures |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Engine model | Yanmar 3TNV88F-ESHYB | p. 19 |
| Piston displacement | 1642 cm³ (100.2 in³) | p. 19 |
| Rated gross horse power (SAE J1995) | 18.2 kW (24.7 Hp) at 2200 RPM | p. 19 |
| Maximum torque at 1200 RPM | 84.3 - 94.1 N·m (62.2 - 69.4 lb ft) | p. 19 |
| High idling speed | 2280 - 2380 RPM | p. 19 |
| Low idling speed | 1150 - 1250 RPM | p. 19 |
| Total hydraulic system capacity | 70 L (18.5 US gal) | p. 40 |
| Main pump maximum pressure | 22553 kPa (3271 psi) | p. 19 |
| Main pump rated oil flow | 2 x 37.4 L/min (9.9 US gpm) | p. 19 |
| Overload relief valve pressure | 24518 kPa (3556 psi) | p. 19 |
| Swing motor relief pressure | 19616 kPa (2845 psi) | p. 20 |
| Travel motor brake release pressure | 1200 kPa (174 psi) | p. 20 |
| Operating weight | 3230 kg (7121 lb) | p. 22 |
| Track shoe width | 300 mm (11.8 in) | p. 20 |
| Maximum digging depth | 3035 mm (119.5 in) | p. 24 |
| Bucket digging force, ISO | 30.7 kN (6901.6 lb) | p. 24 |
| Swing motor mounting bolt torque | 163.2 - 220.8 N·m (120.4 - 162.9 lb ft) | p. 16 |
| Swing bearing upper mounting bolt torque | 110.8 - 150.0 N·m (81.7 - 110.6 lb ft) | p. 16 |
| Travel motor mounting bolt torque | 125.5 - 145.1 N·m (92.6 - 107.0 lb ft) | p. 16 |
| Counterweight mounting bolt torque | 482.8 - 653.4 N·m (356.1 - 481.9 lb ft) | p. 16 |
New Holland E33C Common Problems This Manual Covers
Oil leaking from the hydraulic pump
The pump troubleshooting chart in the Hydraulic Pump and Main Control Valve section puts this down to a damaged O-ring or packing, and the fix is to replace it. Follow the pump removal and overhaul steps to get to the seals. The same section covers pump removal, installation and adjustment.
Manual Section: Pump - Troubleshooting p. 414Swing unit drifting
When the swing unit drifts, the Hydraulic Swing System troubleshooting table points you to the brake spring. If the spring is not normal, it is faulty. Disassemble the unit and replace the spring. When you refit the swing motor, torque the mounting bolts to 163.2 - 220.8 N·m (120.4 - 162.9 lb ft).
Manual Section: Hydraulic swing system - Service instruction - Troubleshooting p. 624Travel motors not working normally
When the travel motors do not function normally, the Hydraulic Travel System troubleshooting chart has you check the select valve. If the select valve is not operative, it is faulty and must be repaired or replaced. Read the travel motor and two-speed mechanism pages before you pull anything. If the motor comes off, torque the mounting bolts to 125.5 - 145.1 N·m (92.6 - 107.0 lb ft) on refit.
Manual Section: Travel motor - Service instruction - Troubleshooting p. 716Engine overheating with the water temperature lamp on
The engine troubleshooting chart lists fan belt elongation as a cause. Adjust the belt tension using the Engine section cooling procedures. Then check the fault codes DTC section to see whether 110-0 - Engine Coolant Temperature: Too High has been logged.
Manual Section: Engine - Service instruction - Troubleshooting p. 120Frequently Asked Questions
Which New Holland mini excavator does this service manual cover?
It covers the New Holland E33C mini excavator, canopy version. The part number is 51691657. It is printed in English and dated November 2019. p. 1
What engine does the E33C use and how much power does it make?
The E33C runs a Yanmar 3TNV88F-ESHYB. Piston displacement is 1642 cm³ (100.2 in³). Rated gross horse power (SAE J1995) is 18.2 kW (24.7 Hp) at 2200 RPM. The engine section covers overhaul, valve train, fuel system, EGR, cooling and lubrication. p. 19
What is the total hydraulic system capacity of the E33C?
Total hydraulic system capacity is 70 L (18.5 US gal). That figure is for the whole system. p. 40
What is the operating weight and maximum digging depth of the New Holland E33C mini excavator?
Operating weight is 3230 kg (7121 lb). Maximum digging depth is 3035 mm (119.5 in). That depth is quoted with the 2.38 m boom and the 1.3 m arm with boom swing post. p. 22
Does the manual include wiring diagrams, hydraulic schematics and fault codes?
Yes. The harnesses and connectors section has numbered electrical schematic sheets. Sheet 02 covers the battery, start switch and start motor, and sheet 05 covers the engine controller. The hydraulic systems section has the full hydraulic schema with a relief valve pressure table. Fold-out E33C electrical and hydraulic schematics are at the back. The fault codes DTC section has diagnostic cards such as 100-1 - Oil Pressure: Too Low and 110-0 - Engine Coolant Temperature: Too High. p. 1040
Reviews
There are no reviews yet.