Sinoboom GTZZ14EJ Maintenance Manual

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Part No.503007110002

Rev: A

Aug 2020

Maintenance

Manual

产品说明书

PRODU

C T MAN U AL

GTZZ14EJ/AB14EJ/AB460EJ

GTZZ16EJ/AB16EJ/AB520EJ

0608E (2132E)

G T JZ

0808E (2732E)

G T JZ

0808E (2732E)

G T JZ

0808E (2732E)

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Page 1 Maintenance Part No.503007110002 Rev: A Manual Aug 2020 产品说明书 PRODU C T MAN U AL GTZZ14EJ/AB14EJ/AB460EJ GTZZ16EJ/AB16EJ/AB520EJ 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 Decals/Nameplates Inspection of the Operation Manual for details.) Trade Identification Model Serial No. Imperial Metric From 030060010 to present GTZZ14EJ AB14EJ AB480EJ From 030070010 to present GTZZ16EJ AB16EJ AB520EJ 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
Electrical System..... . 3-1 5 Maintenance Procedures ..5-1 Machine Control System ....3-1 Conducting a Pre-delivery Inspection . 5-1 GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 11 Electrical Schematic Diagram ..6-19 Appendix 1: Prepare the Word Record before Delivery..A-1 Appendix 2: Repair & Inspection Report ......A-3 GTZZ14EJ&16EJ 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.. GTZZ14EJ&16EJ 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
350 -500 7.62 (25) 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 GTZZ14EJ 230kg (unrestricted/2 persons & tools) Metric © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 17 The • When the machine is on rough battery is vital to maintaining the ground, with gravel or other stability of the machine. uneven surfaces, or near holes GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 18: Work Environment Hazards
3. Lower the main boom. • Running speed should not exceed 0.8 km/h (0.5 in./second) when the platform rises. • If the machine can be used outdoors, never operate it during strong winds or gusts. Do not lift © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 19: Unsafe Operation Hazards
Maintenance Manual in addition to following more platform is only capable of carrying one person. As stringent industry regulations and workplace rules. the weight of the machine’s platform increases, the Never engage in unsafe machine operation. machine’s climbing capacity reduces. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 20: Fall Hazards
The battery not only provides power, it also serves as a counterweight. 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. © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 21: Collision Hazards
• Limit the speed of travel according to ground conditions, crowding, gradients, the presence and location of personnel and any GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 22: Crush 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. © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 23: Bodily Injury Hazards
Remove all rings, watches and other accessories. CHEMICAL BURN HAZARD Avoid spilling or contacting battery acid with unprotected skin. Seek medical attention immediately if battery acid contacts skin. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 24: Hydraulic Hazards
The battery cable connections are free of corrosion. • The battery hold-down and cable connections are secured. Adding terminal protection and anti-corrosion sealants will help reduce corrosion of the battery terminals and cables. © Aug 2020 1-10 GTZZ14EJ&16EJ Maintenance Manual...
Page 25: After Using The Machine
6. Push in the emergency stop button at ground controls to the 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. GTZZ14EJ&16EJ Maintenance Manual 1-11 © Aug 2020...
Page 27: Specifications
SPECIFICATIONS PERFORMANCE PARAMETERS Table 2-1 GTZZ14EJ specifications AB14EJ (METRIC) AB480EJ (IMPERIAL) MEASURE DIMENSION PARAMETERS Max platform height 14 m 45 ft 11 in Max working height 16 mm 152 ft Max horizontal reach 7.6 m 24 ft 11 in Max up and over height 7.8 m...
Page 28 In cold weather, auxiliary devices are needed to start the machines Table 2-2 GTZZ16EJ specifications AB16EJ (METRIC) AB520EJ (IMPERIAL) MEASURE DIMENSION PARAMETERS Max platform height 15.7 m 51 ft 6 in Max working height 17.7 m 58 ft 1 in © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 29 8.8 gal (UK) / 10.6 gal (US) Fuel tank capacity 52 L 11.4 gal (UK) / 13.7 gal (US) Hydraulic system pressure 21 MPa 3045 Psi Battery (number×voltage, capacity) 8×6V, 420Ah System voltage 12 VDC Control voltage 12 VDC GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 30: Major Component Weights
Do not place heavy component upon instable surface. Table 2-3 Component GTZZ14EJ GTZZ16EJ Chassis assembly 1856 kg(4091.8 lb) 1907 kg(4204.2 lb) Turntable assembly 3408.4 kg(7514.2 lb) 3415.44 kg(7529.7 lb) Boom assembly 1281.5 kg(2825.2 lb) 1351.2 kg(2978.9 lb) © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 31: Power System Specifications
(0℃~40℃ [32℉~104℉]) Cold temperature region L-HV32 (-25℃~25℃ [-13℉~77℉]) High temperature region (＞40℃ [104℉]) L-HM68 Extremely cold temperature region Special program to be determined (＜-30℃ [-22℉]) Hydraulic Pump Type Gear pump Flow (rated rpm=2200r/min) 9.9 L/min GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 32: Hydraulic Hose And Fitting
250 ± 16 Nm (184 ± 12 ft-lb) 280 ± 18 Nm(207 ± 13 ft-lb ) M52 × 2 HYDRAULIC FITTING TORQUE Hydraulic fittings with metric thread must be torqued to the following specifications. © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 33 INSTALLED INTO STEEL ALUMINUM THREAD SIZE ED, O-RING + CIRCLIP ED, O-RING + CIRCLIP O-RING L (LIGHT-DUTY) G1/8A 20 ± 1 Nm (15 ± 1 ft-lb) 20 ± 1 Nm (15 ± 1 ft-lb) GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 34 7/16-20 21 ± 2 Nm (15 ± 2 ft-lb) 23 ± 2 Nm (17 ± 2 ft-lb) 9/16-18 34 ± 2 Nm (25 ± 2 ft-lb) 40 ± 3 Nm (30 ± 2 ft-lb) © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 35: Hydraulic Hose And Fitting Torque
105 Nm (77 ft-lb) 135 Nm (100 ft-lb) 160 Nm (118 ft-lb) 1.25 150 Nm (110 ft-lb) 200 Nm (148 ft-lb) 230 Nm (170 ft-lb) 165 Nm (122 ft-lb) 210 Nm (155 ft-lb) 250 Nm (184 ft-lb) GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 36 509 Nm (375 ft-lb) 715 Nm (527 ft-lb) 7/8-9 Unless special torque requirements are listed in this manual or other instructions, torque Unified Thread Standard bolts (label: UNF) to the values listed in the table bellow. © Aug 2020 2-10 GTZZ14EJ&16EJ Maintenance Manual...
Page 37 200 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 GTZZ14EJ&16EJ Maintenance Manual 2-11 © Aug 2020...
Page 39: System Descriptions
A series of angle sensors and limit switches provide signals for the controller. The level sensor measures the inclinations in X axis and Y axis directions of the chassis. When the inclined angle in X axis or Y axis GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 41: Service And Guidelines
MECHANIC INSPECTION AND MAINTENANCE Qualified Sinoboom equipment mechanic is a person recognized by Sinoboom as one who, by possession of a recognized degree, certificate, training, has GENERAL successfully demonstrated the ability and proficiency to service, repair and maintain the subject Sinoboom product model.
Page 42: Preventive Maintenance
Procedures in appropriate areas of this manual to perform the inspection and maintenance procedures. For the purpose of receiving the safety-related bulletins, it is important that Hunan Sinoboom Intelligent Equipment Co., Ltd. has updated ownership information for each machine. When performing each annual machine inspection, notify Hunan Sinoboom Intelligent Equipment Co., Ltd.
Page 43: 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 GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 44: 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 GTZZ14EJ&16EJ Maintenance Manual...
Page 45: 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. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 47: 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 GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 48: Following Amaintenance Schedule
Every year or every 1000 hours A+B+C+D • Return the manual to the storage container after each use. Note: If the manuals need to be replaced, please contact Hunan Sinoboom Intelligent Equipment Co., Ltd.. © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 49: Inspect All Decals
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 50: Inspect Hydraulic Leakage
CAUTION Figure 5-2 Ground Controller Table 5-4 1. CAN bus diagnostic monitor 8. Key switch 15. Platform swinging switch (fault display) (Ground/Platform select switch) 2. Down key 16. Platform leveling switch 9. Enable switch © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 51 16. Drive high/low speed select 7. Foldable boom up/down switch 25. Low battery indicator switch 8. Jib boom up/down switch 17. Emergency stop button 26. Power indicator 9. Main boom telescoping switch 18. Reverse drive switch 27. Horn GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 52: Inspect Battery Level
Perform maintenance on a new machine after the not connected firmly. machine is operated for 30 days or 50 hours. After performing the 30-day maintenance, continue performing maintenance as scheduled. Perform the following procedure： © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 53: Inspect Rim, Tire And Fasteners5-7
2. Inspect the lug nuts are torqued to specificion density tester. (300Nm[221.5ft-lb]). Result: Replace the battery if the electrolyte density of any battery cell is below 1.026. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 54: Inspect Hydraulic Oil
2. Turn the key switch to the platform control position. 3. Operate the control handle to drive the machine on flat pavement at maximum speed. Then release the handle rapidly. Figure 5-4 4. The machine brakes effectively. © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 55: Inspect Slewing Bearing Bolts
5. Lower the main boom to horizontal position, and fully extend the main boom. 6. As indicated by the arrow Fig 5-4 , page 5-9, insert 0.04mm feeler gauge in between the bolt and washer. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 56: Lubricate Slewing Bearing
The high- • Interval: quarterly or every 150 hours of pressure filter should be replaced more often in harsh operation operating environment. © Aug 2020 5-10 GTZZ14EJ&16EJ Maintenance Manual...
Page 57: Inspect Drive Reducer Oil
90 degrees, as should respond quickly and smoothly to the operator’s shown in the figure below. operation without shakes, shocks or unusual sounds. 1. Place the machine on flat, level, obstacle-free and sold ground. GTZZ14EJ&16EJ Maintenance Manual 5-11 © Aug 2020...
Page 58: Test Drive Speed
GTZZ14EJ 115～125s 90～100s GTZZ16EJ 115～125s 90～100s 8. Press and hold the enable button and turntable slewing switch on turntable controller to rotate the turntable with platform raised and towed respectively. © Aug 2020 5-12 GTZZ14EJ&16EJ Maintenance Manual...
Page 59: Test Emergency Lowering
3. With the machine in non-operating position, flip the level switch to exceed 5°in X (left-to-right)/Y (front- to-back) direction. 4. The tilt alarm sounds and the chassis tilt indicator light flashes, no fuctions are restricted. GTZZ14EJ&16EJ Maintenance Manual 5-13 © Aug 2020...
Page 60: Checklist Cprocedures
15°), add loads to the 12. Retract and lower the boom, drive off the machine platform. The test results are shown in the table below: in non-operating position and remove the wooden blocks. © Aug 2020 5-14 GTZZ14EJ&16EJ Maintenance Manual...
Page 61: Checklist Dprocedures
Be sure to replace with a new wear pad asssembly. 4. Remove the dust cover at the lift boom end. 5. Measure each wear pad. 6. If the thickness is under specification, replace the wear pad. GTZZ14EJ&16EJ Maintenance Manual 5-15 © Aug 2020...
Page 62: Lubricate Turntable Slewing
Unqualified cleanliness hydraulic oil may cause the machine to function improperly and continued use may result in hydraulic component damage. Extremely harsh condition requires the oil changes to be performed more frequently. © Aug 2020 5-16 GTZZ14EJ&16EJ Maintenance Manual...
Page 63: Inspect Key Structures
The lift cylinder and the valve block and tubes on the cylinder free of leaks , the Lift cylinder mounting shaft free of deformation, cracks or interference Chassis free of oil stains and debris; the sliding chute free of deformation; no Chassis loose bolt connection; no cracked structures GTZZ14EJ&16EJ Maintenance Manual 5-17 © Aug 2020...
Page 65: Repair Procedures
3. Disconnect and tag the cable from the bottom of the use any function and will remain enabled 7 seconds pltaform controller. after the last function has been used. While the controls GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 66: Footswitch
3. Remove the platform mounting bolts. Figure 6-2 1. Remove the platform. See Platform, page 6-2. 2. Disconnect the socket from platform angle sensor. 3. Disconnect, plug and tag the oil ports of swing motor valves. © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 67: Jib Boom Assembly
Note: the numbers in the figure indicates the removal 3. Tag, disconnect and plug all hydraulic hoses from sequence of jib boom. the guide tube to cable track inlet and outlet. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 68: Main Boom Assembly
3. Remove the jib boom assembly. 4. Remove the cable track. 5. Raise the main boom approx. 1.2m. 6. Attach a strap from an overhead crane to the piston rod end of main boom up/down cylinder. © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 69: Telescope Boom Assembly
When removing a hose or fitting, the O-ring on the fitting or hose end must also be removed and tagged. Figure 6-6 Note: the numbers in the figure indicate the removal sequence of telescope boom. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 70: Adjust Boom Clearance
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 71 2. Tighten the nuts in the sequence as shown below. Figure 6-9 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. GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 72: Reducer And Drive Motor
4. Tag, disconnect and plug the hyrdaulic hoses to the drive motor. 5. Remove the flange to secure the reducer and the fasteners to secure the outrigger, and lift the flange © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 73: Battery
NOTICE support or separation for the foldable boom. After disconnecting the hydraulic lines, immediately plug Hunan Sinoboom Intelligent Equipment Co., Ltd. the hydraulic line and fitting to prevent recommends the loosened nuts and bolts be not contaminants entering the hydraulic system.
Page 74: Hydraulic System
2018.10.25 共页第页 removal. Check valve 46.7096 14. With all applicable safety measures in place, start the hydraulic system to inspect whether the slewing 34.4087 mechanism is working properly. 32.0000 16.0000 © Aug 2020 6-10 GTZZ14EJ&16EJ Maintenance Manual...
Page 75: Hydraulic Schematic Diagram
Y12a Y13b Jib boom cylinder Y12b Y13a Lower leveling oil cylinder Main boom extendable cylinder Y11b Up leveling oil cylinder Y11a Y10a Y10b Telescopic cylinder Turntable rotation Folding boom luffing cylinder Steer cylinder GTZZ14EJ&16EJ Maintenance Manual 6-11 © Aug 2020...
Page 76: Electrical System
• Distilled or purified water (deionized water and reverse osmosis water, etc.) BATTERY CONNECTION INSTRUCTIONS • Discharge tester (if required) Battery cable and torque value: • Specific gravity hydrometer (for flooded/wet battery) © Aug 2020 6-12 GTZZ14EJ&16EJ Maintenance Manual...
Page 77 • If necessary, add distilled water into the battery. The frequency of adding water depends on the battery applications and working temperature. Inspect the battery every few weeks to determine if water needs GTZZ14EJ&16EJ Maintenance Manual 6-13 © Aug 2020...
Page 78 The self-discharge process will battery in cold temperatures or during cold weather, accelerate in warmer temperatures. If storing the fully charge the battery. This point is very battery in hot temperatures or during hot weathe important. © Aug 2020 6-14 GTZZ14EJ&16EJ Maintenance Manual...
Page 79: Use And Care Of Lead-Acid Battery
24 hours. and negative terminals, etc. 2. Measure the voltage of each individual battery. • Check and confirm the fault description and analyze the cause. GTZZ14EJ&16EJ Maintenance Manual 6-15 © Aug 2020...
Page 80: Use And Care Of Lithium Battery
Check and confirm the fault description and analyze the cause. CAUTIONS • In the driving process (traveling or lifting), if there is no emergency, do not arbitrarily disconnect the key to forcibly cut off the battery system main relay. © Aug 2020 6-16 GTZZ14EJ&16EJ Maintenance Manual...
Page 81: Electrical Symbols
Two lines connected 17.4787 46.7096 Power-off switch 棕兰 46.8000 黑 34.4087 θ Motor 0000 28.5682 16.0000 28.5682 Relay 46.7096 46.8000 Storage battery 28.5682 Warning lamp Lithium battery 46.8000 Valve Toggle switch 28.5682 GTZZ14EJ&16EJ Maintenance Manual 6-17 © Aug 2020...
Page 82 REPAIR PROCEDURES Symbol Desription Two lines non- connected 棕兰 Proximity switch/ 黑 Pressure sensor 28.5682 46.7096 28.5682 棕兰黑 θ Fuel level sensor 46.8000 Horn 28.5682 Key switch Preheating wire © Aug 2020 6-18 GTZZ14EJ&16EJ Maintenance Manual...
Page 83 Y10a PWM_OUT_38 Y10b PWM_OUT_39 XJ1-13/14 XJ1-3/4 PWM_OUT_40 SB200 XJ1-17/18 XJ1-1/2 +12V PWM_OUT_46 XJ1-15/16 PWM/OUT_45 XJ1-19/20 OUT_24 XJ1-11/12 XJ1-9/10 IN_48 OUT_23 XJ1-7/8 IN_49 OUT_26 XJ1-5/6 IN_50 OUT_25 Figure 6-17 Electrical schematic diagram of turntable GTZZ14EJ&16EJ Maintenance Manual 6-19 © Aug 2020...
Page 84 PWM_OUT_37 SQ107 PWM_OUT_38 V(C)_IN_59 PWM_OUT_39 V(C)_IN_60 PWM_OUT_40 V(C)_IN_56 OUT_24 IN_47 H103 OUT_23 IN_48 H104 OUT_26 IN_49 H105 OUT_25 IN_50 H106 H100 HG100 S116 SB100 H113 S117 Figure 6-18 Electrical schematic diagram of platform © Aug 2020 6-20 GTZZ14EJ&16EJ Maintenance Manual...
Page 85 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". GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 87 Malfunction B-1 Inspect Electrical Wiring B-2 Inspect the battery B-3 Inspect Rim, Tire and Fasteners B-4 Inspect Hydraulic Oil B-5 Test Braking Device B-6 Inspect Brake Manual Release Function B-7 Inspect Slewing Bearing Bolts GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 88 Condition Malfunction D-1 Inpsect Boom Wear Pads D-2 Lubricate turntable slewing bearing and slewing gear D-3 Replace Hydraulic Oil D-4 Replace Hydraulic Tank Suction Filter D-5 Inspect Key Structures User Inspector Signature Inspector Date © Aug 2020 GTZZ14EJ&16EJ Maintenance Manual...
Page 89 REPAIR PROCEDURES REPAIR & INSPECTION REPORT Inspector Title Inspector Company GTZZ14EJ&16EJ Maintenance Manual © Aug 2020...
Page 90 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...

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Ab14ej Ab460ej Gtzz16ej Ab16ej Ab520ej

Sinoboom GTZZ14EJ Maintenance Manual

Introduction

1 Safety

2 Specifications

3 System Descriptions

4 Service and Guidelines

5 Maintenance Procedures

6 Repair Procedures

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