Sinoboom GTBZ26 Maintenance Manual

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Part No.505031110002

Rev: A

Aug 2020

Maintenance

Manual

产品说明书

PRODU

C T MAN U AL

GTBZ26/TB26/TB850

GTBZ28J/TB28J/TB910J

0608E (2132E)

G T JZ

0808E (2732E)

G T JZ

0808E (2732E)

G T JZ

0808E (2732E)

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Table of Contents

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Summary of Contents for Sinoboom GTBZ26

Page 1 Maintenance Part No.505031110002 Rev: A Manual Aug 2020 产品说明书 PRODU C T MAN U AL GTBZ26/TB26/TB850 GTBZ28J/TB28J/TB910J 0608E (2132E) G T JZ 0808E (2732E) G T JZ 0808E (2732E) G T JZ G T JZ 0808E (2732E)
Page 3 Operating, servicing and maintaining this vehicle or equipment can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle or equipment in a well-ventilated area and wear gloves or wash your...
Page 4 : No.128, East Jinzhou Avenue, Ningxiang High-tech Industrial Park, Changsha, Hunan, China Zip Code : 410600 Copyright © Hunan Sinoboom Intelligent Equipment Co., Ltd. All Rights Reserved The final interpretation right of this manual belongs to Hunan Sinoboom Intelligent Equipment Co., Ltd.
Page 5 See the nameplate on your machine to identify the model and serial number. (See of the Operation Manual for details.) Trade Identification Model Serial No. Imperial Metric From 0503100100 to present GTBZ26 TB26 TB850 From 0503200400 to present GTBZ28J TB28J TB910J NOTE: •...
Page 6 This Page Intentionally Left Blank...
Page 7 This manual covers the basic parts information of one or more products. Therefore, please use this manual according to your needs. If you find problems in the manual or have suggestions for improve- ment, feel free to share your feedback with Sinoboom, and we will address these issues as soon as possible.
Page 8 This Page Intentionally Left Blank...
Page 9: Table Of Contents
Hydraulic System ..... 3-1 Grease to Electrical Connections ..4-5 GTBZ26&28J Maintenance Manual © Aug 2020...
Page 11 Electrical Symbols ....6-22 Electrical Schematic Diagram ..6-25 Appendix 1: Prepare the Word Record before Delivery..A-1 Appendix 2: Repair & Inspection Report ......A-3 GTBZ26&28J Maintenance Manual © Aug 2020...
Page 13: Introduction
The owner or administrator of the machine shall also provide the manufacturer’s maintenance information to the person responsible for maintaining the machine. If you have any questions, contact Hunan Sinoboom In- telligent Equipment Co., Ltd.. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 15: Safety
In case of any accident involving the machinery of heights must never operate or use this machine. Hunan Sinoboom Intelligent Equipment Co., Ltd., notify Also, people who have alcohol or drugs in their Hunan Sinoboom Intelligent Equipment Co., Ltd.
Page 16: Tipping Hazards And Rated Load
500 -750 10.67 (35) 750 -1000 13.725 (45) TIPPING HAZARDS AND RATED LOAD Maximum rated load bearing capacity of the platform: Table 1-2 GTBZ26 250kg (unrestricted/2 persons & tools) Metric 480kg (restricted/2 persons & tools) © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 17 Do not use the platform or boom ground, with gravel or other assembly to push other machines uneven surfaces, or near holes or objects. and steep slopes, maintain a minimum distance of 0.6m (2ft) and reduce the speed. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 18: Work Environment Hazards
If the machine can be used outdoors, never operate it during strong winds or gusts. Do not lift the platform when the wind speed exceeds 12.5 m/s (18 mph). If the wind speed exceeds 12.5 m/s (18 © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 19: Unsafe Operation Hazards
30%/17° (2WD); 45%/24° (4WD) At a minimum, operators must operate and maintain the machine as stated in this manual and in the downhill 10%/6° (2WD); 30%/17° (4WD) Maintenance Manual in addition to following more GTBZ26&28J Maintenance Manual © Aug 2020...
Page 20 The battery is vital to maintaining the stability of the machine. • Do not place or attach any suspended load onto any part of the machine. • Do not use the machine as a crane. © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 21: Fall Hazards
At a minimum, operators must operate and maintain the stringent industry regulations and workplace rules. machine as stated in this manual and in the Maintenance Manual in addition to following more stringent industry regulations and workplace rules. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 22: Crush Hazards
• Limit the speed of travel according to ground conditions, crowding, gradients, the presence and location of personnel and any © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 23: Explosion And Fire Hazards
• Make sure all labels are in place and are legible. • Ensure that the Operation Manual and Maintenance Manual are sound, easy to read and stored in the storage compartment on the platform. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 24: Hydraulic Hazards
• Never store the battery in water or Maintenance Manual. humid atomosphere. • Daily check the battery cable for damage, and replace any damaged parts before operating the machine. © Aug 2020 1-10 GTBZ26&28J Maintenance Manual...
Page 25: After Using The Machine
OFF position. 7. Turn the key switch at the ground controls to OFF position and remove the key to avoid unauthorized operation of the machine. 8. Turn off the main power switch. GTBZ26&28J Maintenance Manual 1-11 © Aug 2020...
Page 27: Specifications
SPECIFICATIONS PERFORMANCE PARAMETERS Table 2-1 GTBZ26 specifications GTBZ26 (METRIC) TB850 (IMPERIAL) MEASURE DIMENSION PARAMETERS Max platform height 25.8 m 84 ft 8 in Max working height 27.8 m 91 ft 2.5 in Max horizontal reach 20.4 m 66 ft 11 in Overall length(stowed) 11.54 m...
Page 28 In different areas, hydraulic oil, engine oil, coolant, fuel and lubrication should be added in accordance with the environmental temperature. d) In cold weather, auxiliary devices are needed to start the machines © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 29 Turning radius (inside) 2.44 m 8 ft Turning radius (outside) 5.84 m 19 ft 2 in Max allowable side force 400 N 90 lbf Max operating noise level 82 dB IP grade IP54 POWER PARAMETERS GTBZ26&28J Maintenance Manual © Aug 2020...
Page 30 In different areas, hydraulic oil, engine oil, coolant, fuel and lubrication should be added in accordance with the environmental temperature. d) In cold weather, auxiliary devices are needed to start the machines © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 33: Engine Specifications
38℃. If the Output 55.4kw@2200rpm hydraulic oil temerature is too low, the test results will be affected. Torque 260Nm (192 ft-lb) @1800rpm Test requirements: Coolant 3.3L Capacity 0.73 gal (Imperial) GTBZ26&28J Maintenance Manual © Aug 2020...
Page 34: Major Component Weights
Slewing mechanism Turntable cover assembly Main boom telescopic cylinder Main boom level cylinder, upper Main boom level cylinder, lower Main boom lift cylinder Jib boom cylinder Reducer and motor Wheel assembly Engine-Cummins Engine-Deutz 1045 © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 35: Power System Specifications
0.4 MPa (58 Psi) High-pressure Filter High-pressure filter bypass pressure 0.7 MPa (101.5 Psi) NOTICE The factory-filled hydraulic oil can be selected to suit the customer’s demand. Do not intermix different types of hydraulic oil. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 36: Hydraulic Hose And Fitting
40 ± 3 Nm (30 ± 3 ft-lb) M16×1.5 75 ± 5 Nm (55 ± 4 ft-lb) 75 ± 5 Nm (55 ± 4 ft-lb) 45 ± 3 Nm (33 ± 4 ft-lb) M18×1.5 © Aug 2020 2-10 GTBZ26&28J Maintenance Manual...
Page 37 240 ± 15 Nm (177 ± 11 ft-lb) 450 ± 25 Nm (332 ± 18 ft-lb) G1-1/2A 280 ± 20 Nm (207 ± 15 ft-lb) 540 ± 30 Nm (398 ± 22 ft-lb) GTBZ26&28J Maintenance Manual 2-11 © Aug 2020...
Page 38 110 ± 8 Nm (81 ± 6 ft-lb) 185 ± 15 Nm (136 ± 11 ft-lb) 1-5/16-12 160 ± 10 Nm (118 ± 7 ft-lb) 280 ± 20 Nm (207 ± 15 ft-lb) © Aug 2020 2-12 GTBZ26&28J Maintenance Manual...
Page 39: Hydraulic Hose And Fitting Torque
600 Nm (443 ft-lb) 800 Nm (590 ft-lb) 980 Nm (723 ft-lb) 650 Nm (479 ft-lb) 850 Nm (627 ft-lb) 1050 Nm (774 ft-lb) 750 Nm (553 ft-lb) 1050 Nm (774 ft-lb) 1250 Nm (923 ft-lb) GTBZ26&28J Maintenance Manual 2-13 © Aug 2020...
Page 40 200 Nm (148 ft-lb) 9/16-18 13/16" 200 Nm (148 ft-lb) 280 Nm (207 ft-lb) 5/8-18 15/16" 350 Nm (258 ft-lb) 495 Nm (365 ft-lb) 3/4-16 1-1/8" 560 Nm (413 ft-lb) 780 Nm (575 ft-lb) 7/8-14 © Aug 2020 2-14 GTBZ26&28J Maintenance Manual...
Page 41: System Descriptions
Two circuit breakers are used to protect the control system. MACHINE CONTROL SYSTEM The machine functions are controlled by two controllers, one installed on the left side of turntable to GTBZ26&28J Maintenance Manual © Aug 2020...
Page 43: Service And Guidelines
Reference the Repair & Inspection Report for items Qualified Sinoboom equipment mechanic is a person requiring inspection. Reference the Inspection recognized by Sinoboom as one who, by possession of Procedures in appropriate areas of this manual to a recognized degree, certificate, training, has perform the inspection and maintenance procedures.
Page 44: Preventive Maintenance
SERVICE AND GUIDELINES annual machine inspection, notify Hunan Sinoboom Intelligent Equipment Co., Ltd. of the current machine ownership information. PREVENTIVE MAINTENANCE The preventive maintenance must be performed by a qualified Sinoboom equipment mechanic. Reference the Repair & Inspection Report and Maintenance Schedule in this manual for the inspecton items and intervals.
Page 45: Maintenance And Servicing
2. Should it be necessary to remove a component on materials out of the vital components. Precautions an angle, keep in mind that the capacity of an have been taken to safeguard against this. Shields, eyebolt or similar bracket lessens, as the angle GTBZ26&28J Maintenance Manual © Aug 2020...
Page 46: Component Disassembly
Service applicable components with the amount, type, and grade of lubricant recommended in this manual, at the specified intervals. When recommended lubricants are not available, consult your local supplier for an © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 47: Battery
NOTICE The setting type sealant can be used to avoid short circuit and keep the connections tidy, but it will make the future removal of pins more difficult. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 49: Maintenance Procedures
3. Record the inspection results. If any inspection results are "NO", the machine must be stopped and – Pull out the red emergency stop buttons on ground and platform controls to OFF position to GTBZ26&28J Maintenance Manual © Aug 2020...
Page 50: Following Amaintenance Schedule
Every year or every 1000 hours A+B+C+D in the box marked "inspection". Select the appropriate inspection procedure based on the inspection type. Table 5-3 REPAIR & INSPECTION REPORT Model Serial No. © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 51 A-20 Perform Maintenance after 30 Days Checklist B Procedures REPAIRED/ YES/Machine is NO/Machine Has Problem Machine Has Items in Good Damage or Description Been Repaired Condition Malfunction B-1 Replace Hydraulic Oil Tank Return Filter GTBZ26&28J Maintenance Manual © Aug 2020...
Page 52 YES/Machine is NO/Machine Has Problem Machine Has Items in Good Damage or Description Been Repaired Condition Malfunction C-1 Replace Fuel Filter Element C-2 Inspect Boom Extend/ Retract Cables and Pulleys C-3 Replace Engine Oil © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 53: Checklist Aprocedures
Return the manual to the storage container after CHECKLIST A each use. PROCEDURES Note: If the manuals need to be replaced, please contact Hunan Sinoboom Intelligent Equipment Co., Ltd.. A-1 Inspect All Manuals Keeping the Operation Manual and Maintenance A-2 Inspect All Decals Manual in appropriate place is vital to safe machine operation.
Page 54: Inspect Damaged, Loose Or
Verify all decals are legible and free of damage, and replace in time if necessary. Note: If the decals on the machine need to be replaced, please contact Hunan Sinoboom Intelligent Equipment Co., Ltd.. A-3 Inspect Damaged, Loose or Lost...
Page 55: Inspect Fuel Level
50%– 100% of the tank capacity. -2.44 ° Table 5-5 10.92 0011.5 11.5 DIESEL RECOMMENDED AMBIENT TEMP GRADE Lowest temperature 8℃ or higher Lowest temperature 4℃ or higher GTBZ26&28J Maintenance Manual © Aug 2020 25 24 20 19...
Page 56: Inspect Fuel Leakage
• Fuel injection system EXPLOSION AND FIRE HAZARD If fuel leakage is discovered, immediately forbid any other personnel from entering the area or operating the machine, and repair the leakage as soon as possible. © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 57: Inspect Coolant Level
650% ethylene glycol and -54℃～-32℃ 40% water mixed coolant room temperature, and slowly open the cover to release the pressure. NOTICE Turn off the engine before inspection. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 58: Inspect Engine Belt
Figure 5-4 5. Clean up the fuel spill. 6. Start the engine from the ground controller and Replace the engine belt immediately if the above inspect the fuel filter for leakage. conditions occur. © Aug 2020 5-10 GTBZ26&28J Maintenance Manual...
Page 59: Inspect Cooling Fan
1. Inspect whether the engine intake tube is damaged ensure that the safety rules in the operation manual are or extruded flat, or getting loose. If such conditions fully read and understood. occur, the dust or debris may enter the engine. GTBZ26&28J Maintenance Manual 5-11 © Aug 2020...
Page 60 12.Jib rotate switch-GTBZ28J 5. Key switch 19. Emergency stop button (if equipped) 20. Platform control position 6. Enable switch 13. Platform rotate switch 7. Emergency power switch 21. Ground control position 14. Platform level switch © Aug 2020 5-12 GTBZ26&28J Maintenance Manual...
Page 61 8. Turntable info 19. Chassis tilt alarm horizontal plane 31. Boom length 9. Platform info 20. Platform tilt alarm 10. Alarm message 21. Heavy load alert 32. Platform height 11. Trouble alarm 22. Overload alarm GTBZ26&28J Maintenance Manual 5-13 © Aug 2020...
Page 62 37. Work lamp switch 24. Drive high/low speed select 11. Chassis tilt indicator (if equipped) switch 25. Jib rotate orientation 12. Overload indicator -GTBZ28J (if equipped) 13. Length sensor malfunction 26. Main boom telescope orientation indicator © Aug 2020 5-14 GTBZ26&28J Maintenance Manual...
Page 63: Test Floating Outrigger
9. The test results are shown in the table below: 5. Move the corresponding boom function switch on the ground controller to lower the platform. Operating from the platfrom controller: GTBZ26&28J Maintenance Manual 5-15 © Aug 2020...
Page 64: Test Tilt Protection System
Before the test, move the boom fully up and down and telescope in and out for at least twice to ensure the 3. Turn the key switch on the ground controller to the pulley and track are adequately lubricated. ON position. © Aug 2020 5-16 GTBZ26&28J Maintenance Manual...
Page 65: Perform Maintenance After
Replace the return filter more frequently in very dirty environments. • B-13 Inspect slewing bearing bolts • B-14 Inspect platform rotate cylinder fasteners BURN HAZARD Allow the hydraulic oil to cool to room temperature before servicing the hydraulic system. GTBZ26&28J Maintenance Manual 5-17 © Aug 2020...
Page 66: Fasteners
Obtain a sample of the hydraulic oil and inspect it in The machine is equipped with solid tires that do not sunlight. Rub the oil between two fingers to need to be inflated. determine if it contains metal particles. © Aug 2020 5-18 GTBZ26&28J Maintenance Manual...
Page 67: Inspect Cooling System
NOTICE NOTICE Shut off the engine before inspection. Shut off the engine before inspection. 1. Remove the air filter of hdraulic tank. GTBZ26&28J Maintenance Manual 5-19 © Aug 2020...
Page 68: Replace High-Pressure Filter
8. Install the end cap back to the filter and secure the clip. 1. Open the right side cover of turntable, and locate the high-pressure filter. 2. Place a suitable vessel under the filter. © Aug 2020 5-20 GTBZ26&28J Maintenance Manual...
Page 69: Sensors
5. Tighten or replace parts, if needed, to ensure the extend the boom. exhaust system is free of leakage. 6. GTBZ26：The boom extends to the upper limit (the ground controller display indicates 20.4m[66ft 11in]) and stops extending further. B-11 Inspect Drive Reducer Oil Level 7.
Page 70: Level
4. Ensure the feeler gauge won’t go through the outside of bolt head to the bolt shank. 5. Rotate the turntable to inspect all the bolts. Inspecting the connecting bolts between turntable and slewing bearing © Aug 2020 5-22 GTBZ26&28J Maintenance Manual...
Page 71: Lubricate Slewing Bearing
(68Nm[50ft-lb]). • Lube point：1 grease nipple（see the following figure） 4. If necessary, replace the bolt, torque to specified value, and apply threadlocker Loctite 272. GTBZ26&28J Maintenance Manual 5-23 © Aug 2020...
Page 72: Test Cylinder Drift
Testing Float cylinder exhausting 9. Slowly rotate the turntable to allow the turntable back to the center position (at the center between the two drive wheels) © Aug 2020 5-24 GTBZ26&28J Maintenance Manual...
Page 73: Inspect Electrical Wiring
Improper levels of battery electrolyte or • Ensure that a conforming fire damaged cable and wiring may harm battery parts and extinguisher is readily accessible may pose dangerous conditions. when performing this inspection procedure. GTBZ26&28J Maintenance Manual 5-25 © Aug 2020...
Page 74: Inspect Boom Extend/Retract
2nd and 3rd boom sections. engine oil when draining to avoid 7. The retraction displacement of the 2nd boom burns. section should not be more than 1/2 that of the 3rd boom section. © Aug 2020 5-26 GTBZ26&28J Maintenance Manual...
Page 75: Replace Engine Oil Filter
A-8 Inspect Engine Oil Level, page 5-8. Figure 5-23 7. Inspect the engine oil filter element to make sure no leakage occurs. 7. Remove the #1 and #2 bolts as indicated. GTBZ26&28J Maintenance Manual 5-27 © Aug 2020...
Page 76: Replace Hydraulic Tank
When performing the procedure D-3 Replace Hydraulic Oil, page 5-28, the hydraulic tank suction filter must also be replaced. © Aug 2020 5-28 GTBZ26&28J Maintenance Manual...
Page 77: Hoses
• Hoses between injector and fuel tank. vessel. 3. Open the coolant tank cover. 4. Remove the clamps from the hoses, and remove the hoses. GTBZ26&28J Maintenance Manual 5-29 © Aug 2020...
Page 78: Inpsect Boom Wear Pads
The wear pad disassembled from the boom should never be reused. Be sure to replace with a new wear pad asssembly. Figure 5-25 1. Remove the both boom end covers or nylon brush. © Aug 2020 5-30 GTBZ26&28J Maintenance Manual...
Page 79: Repair Procedures
The retract cable is installed outside the boom so that the failures with retract cable are self- GTBZ26&28J Maintenance Manual © Aug 2020...
Page 80: Platform Controller
4. Remove the platform mounting bolts. NOTICE When removing the hose and fitting, the O-ring on the fitting and hose end must also be removed and tagged. © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 81: Platform Level Cylinder
When removing the cylinder, special care should be taken to avoid the fall of the cylinder and component When removing a hose or fitting, the O-ring on the damage. fitting or hose end must also be removed. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 82: Wire Rope Tensioning Adjustment
112 Nm（82.68 ft- lb）. Figure 6-5 NOTICE Do not hold the wire rope on the thread. 4. Using a wrench, torque alternately the adjusting nuts of the both retract cables to 112 Nm（82.68 ft- lb）. © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 83: Main Boom Assembly
72±15mm 2.8±0.6in 190±15mm 7.5±0.6in Figure 6-9 Figure 6-8 9. Re-install the locknut to the wire rope retainer. 10. Check each boom function operates properly. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 84: Chassis And Turntable Components
COMPONENTS Tires and Rims Replacing tires and rims Hunan Sinoboom Intelligent Equipment Co., Ltd. recommends the replacement tires be of the same size, ply rating and brand as the original tires. For the part number of a specific machine model, please reference the Part Manual.If the replacement tires are not...
Page 85: Reducer And Drive Motor
2. Tighten the nuts in the sequence as shown below. Figure 6-12 3. The tightening of the nuts should be done in stages. Following the recommended sequence, tighten nuts per wheel torque as listed in the table below. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 87 18121012 Cylindrical Roller Bearing 79913011 Locknut 79911183 Bearing Support 18125437 Circlip for Hole 79912186 Inner Gear Ring 79916156 Sun Gear 79911093 Planet Carrier 79916119 Planet Gear 18121066 Cylindrical Roller Bearing 18125703 Circlip for Shaft GTBZ26&28J Maintenance Manual © Aug 2020...
Page 88 6. Use a suitable lifting device to support the drive torque the bolts after pretightening. reducer. 8. Attach the hrdraulic hoses. 7. Remove the bolts and washers securing the drive reducer to the outrigger, and remove the drive reducer. © Aug 2020 6-10 GTBZ26&28J Maintenance Manual...
Page 89: Turntable Slewing Mechanism
Figure 6-15 Assembly (see Fig 6-18 Second Stage Planetary Gear Set Assembly, page 6-12) Table 6-3 Screw DESCRIPTION Mounting Disc Slewing Buffer Valve Screw Slewing Motor Slewing Reducer Slewing Bearing Figure 6-17 Brake Assembly GTBZ26&28J Maintenance Manual 6-11 © Aug 2020...
Page 90 Compound Gasket Brake Housing Figure 6-19 Second Stage Planetary Gear Set Assembly Table 6-7 DESCRIPTION Retainer Ring for Shaft Bearing Second Stage Planet Gear Retainer Ring for Shaft Gasket Second Stage Planet Gear Carrier © Aug 2020 6-12 GTBZ26&28J Maintenance Manual...
Page 91: Figure
Loctite 272 to the bolt, and intall the bolts one by one. 5. Tighten the bolts in the sequence as shown in the figure below. Figure 6-20 GTBZ26&28J Maintenance Manual 6-13 © Aug 2020...
Page 92: Engine
High-voltage short circuit accelerator padal or control handle Electrical circuit #1 of sensor at the Low-voltage short circuit accelerator padal or control handle Electrical circuit #1 of engine coolant High-voltage short circuit temperature sensor © Aug 2020 6-14 GTBZ26&28J Maintenance Manual...
Page 93: Fault
Battery #1 voltage (medium-level severity) Data valid but higher than normal Battery #1 voltage (medium-level severity) Data valid but lower than normal Engine oil level (lowest-level severity) Electrical circuit of starter relay High-voltage short circuit GTBZ26&28J Maintenance Manual 6-15 © Aug 2020...
Page 94: Hydraulic System
日期 2018.10.25 34.4087 vavle 32.0000 46.7096 46.7096 46.7096 Brake 34.4087 32.0000 28.5682 34.4087 2–position 4–way 32.0000 16.0000 34.4087 solenoid directional valve 28.5682 32.0000 16.0000 32.0000 16.0000 32.0000 28.5682 Power unit 16.0000 16.0000 16.0000 © Aug 2020 6-16 GTBZ26&28J Maintenance Manual...
Page 95 28.5682 34.4087 46.7096 28.5682 REPAIR PROCEDURES 32.0000 28.5682 16.0000 棕兰 Symbol Description 黑 Pressure gradient control valve 17.4787 Check valve 46.7096 34.4087 32.0000 28.5682 16.0000 GTBZ26&28J Maintenance Manual 6-17 © Aug 2020...
Page 96: Hydraulic Schematic Diagram
REPAIR PROCEDURES Hydraulic Schematic Diagram Figure 6-23 GTBZ26 hydraulic schematic diagram (2WD) © Aug 2020 6-18 GTBZ26&28J Maintenance Manual...
Page 97 REPAIR PROCEDURES Figure 6-24 GTBZ26 hydraulic schematic diagram (4WD) GTBZ26&28J Maintenance Manual 6-19 © Aug 2020...
Page 98 REPAIR PROCEDURES Figure 6-25 GTBZ28J hydraulic schematic diagram (2WD) © Aug 2020 6-20 GTBZ26&28J Maintenance Manual...
Page 99 REPAIR PROCEDURES Figure 6-26 GTBZ28J hydraulic schematic diagram (4WD) GTBZ26&28J Maintenance Manual 6-21 © Aug 2020...
Page 100: Electrical System
• Charge the battery every time after using. 棕兰 Maintenance 黑 • While wearing proper hand and face protection, wipe the top and sides of the battery. 17.4787 © Aug 2020 6-22 GTBZ26&28J Maintenance Manual 46.7096 46.8000 34.4087...
Page 101 兰棕 Oil temperature Proximity switch/ θ 黑 switch Pressure sensor θ 28.5682 46.7096 28.5682 Delay relay 兰棕黑 Fuel level sensor Power-off switch 17.4787 46.7096 34.4087 Relay Horn 32.0000 28.5682 16.0000 GTBZ26&28J Maintenance Manual 6-23 © Aug 2020...
Page 103: Electrical Schematic Diagram
Brake Telescope Leveling Public Lift Slew Alternator Floating Horn Proportion Proportion Proportion Speed Valve Protection proportion Retract Extend down Down Right Left Forward Back Left Right Figure 6-27 Electrical schematic diagram of turntable GTBZ26&28J Maintenance Manual 6-25 © Aug 2020...
Page 104 Inspect 蓝棕蓝棕黑红蓝棕黑黑白黑 120Ω CAN_L1 CAN_H1 Engine Auxiliary Power Warning lamp Buzzer Stopping Alarm Pump Relay Figure 6-28 Electrical schematic diagram of turntable（continued） © Aug 2020 6-26 GTBZ26&28J Maintenance Manual...
Page 105 Working lamp/Show Height Light 120Ω Platform Rotate Chassis Rear Angle Sensor Fault Length Sensor Fault Buzzer Engine High Speed Indicator Fault Overweight Down Right Left Unlevelness Indicator Figure 6-29 Electrical schematic diagram of platform GTBZ26&28J Maintenance Manual 6-27 © Aug 2020...
Page 106 Soft Contact Remove Inspect Up Down -L10 Y 轴 Y 轴 X 轴 X 轴红黑黄棕蓝紫红黑黄紫棕蓝 Figure 6-30 Electrical schematic diagram of turntable（continued） © Aug 2020 6-28 GTBZ26&28J Maintenance Manual...
Page 107: Appendix 1: Prepare The Word Record Before Delivery
2. Use the table to record the results. After each section is complete, mark the appropriate box. 3. Record the inspection results. If any inspection results are "NO", the machine must be stopped and re- inspected after repair is completed and marked in the box marked "inspection". GTBZ26&28J Maintenance Manual © Aug 2020...
Page 109: Appendix 2: Repair & Inspection Report
System A-14 Functional Tests A-15 Test Floating Outrigger (if Equipped) A-16 Test Drive Speed A-17 Test Emergency Lowering Function A-18 Test Tilt Protection System A-19 Test Weighing System A-20 Perform Maintenance after 30 Days GTBZ26&28J Maintenance Manual © Aug 2020...
Page 110: Inspect Cooling System
B-14 Lubricate Slewing Bearing B-15 Inspect Platform Rotate Cylinder Fasteners B-16 Test Cylinder Drift B-17 Test Float Cylinder Exhausting and Counterbalance Valve Locking B-18 Inspect Electrical Wiring B-19 Inspect the battery Checklist C Procedures © Aug 2020 GTBZ26&28J Maintenance Manual...
Page 111: Replace Fuel Filter Element
4. Record the inspection results. If any inspection results are "NO", the machine must be stopped and re- inspected after repair is completed and marked in the box marked "inspection". Select the appropriate inspection procedure based on the inspection type. GTBZ26&28J Maintenance Manual © Aug 2020...
Page 112 For B et t er A ccess Solution s Alw ays For B et t er A ccess Solution s ess Solution s Always for Better Access Solutions Hunan Sinoboom Intelligent Equipment Co., Ltd. AS/N ZS 长沙市宁乡高新技术产业园区金洲大道东 128 号...

This manual is also suitable for:

Tb26 Tb850 Gtbz28j Tb28j Tb910j

Sinoboom GTBZ26 Maintenance Manual

Table of Contents

Introduction

Safety

Specifications

System Descriptions

Service and Guidelines

Maintenance Procedures

Repair Procedures

Engine

Appendix 1: Prepare the Word Record before Delivery

Appendix 2: Repair & Inspection Report

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