Sinoboom GTBZ26 Service Manual
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Sinoboom GTBZ26 Service Manual

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GTBZ26&28J Service Manual
Service Manual
GTBZ26&GTBZ28J
© Copyright by Hunan Sinoboom Intelligent Equipment Co.,Ltd.
The
third
edition: December 2019

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Summary of Contents for Sinoboom GTBZ26

  • Page 1 GTBZ26&28J Service Manual Service Manual GTBZ26&GTBZ28J © Copyright by Hunan Sinoboom Intelligent Equipment Co.,Ltd. third edition: December 2019...

  • Page 2: Table Of Contents

    2.3 Lubrication and Information....................16 2.4 Testing of Oil Cylinder Shift....................17 2.5 Repair guidance for pin roll and composite bearing............18 2.6 Welding on Sinoboom equipment..................18 Chapter 3 Underframe and Turntable....................23 3.1 Tires and Rims........................23 3.2 Removal of Drive Motor.....................24 3.3 Removal of Reducer......................
  • Page 3 Please contact us: Website: www.sinoboom.com E-mail: info@sinoboom.com.cn Service Tel: 400-608-1289/0731-87116333 Fax: 0086-0731-87116516-16 Address: No.128, East Jinzhou Avenue, Ningxiang High-tech Industrial Park, Changsha, Hunan,China Zip code: 410600 Trainslation Version Hunan Sinoboom Intelligent Equipment Co., Ltd. All Rights Reserved third edition: December 2019...

  • Page 4: Foreword Safety Notices For Maintenance

    Foreword Safety Notices for Maintenance maintenance site shall be under the A Overview responsibility machine owner/operator. This chapter includes basic safety notices that must be abided by in the maintenance process B Safety of Hydraulic System of aerial work platform. The maintenance personnel must strictly follow safety warnings and notices to prevent injury to themselves or Hydraulic system of the machine works under...
  • Page 5 The lifting boom must be blocked or  fixed with sling or use main boom safety support before operation under it. Before adjustment, lubricate or maintain  other parts and turn off all power switches. Batteries shall removed before  replacement of electronic elements.

  • Page 6: Chapter 1 Specification

    Chapter 1 Specification Torque 270N*m@1800rpm 1.1 Capacity Capacity Cooling system 3.5L/0.92gal Table 1-1 Capacity capacity 8L/2.1gal92 Hydraulic oil tank 170L/45 gal Engine oil capacity Fuel tank 160L/42.3 gal Low-speed 1500rpm Hydraulic system 270L/71.3 gal High-speed 2200rpm 1.2 Tires Table 1-4 Deutz TD 2.9L4 Specification Type Water-cooling Table 1-2 Specification of Tires...

  • Page 7: Specification And Performance Parameters

    Retracted height 2.88m/9 ft 5 in Ground clearance 0.41m/1 ft 4 in Table 1-5 Operation Specification Wheelbase 3m/9 ft 10 in Load of working Control voltage platform-GTBZ26 250kg/551lb Total weight Unrestricted Load 480kg/1058lb GTBZ26-2WD 16442kg/36248lb( 2WD) restricted Load GTBZ26-4WD 16532kg/36447lb (4WD)

  • Page 8: Torque Requirements

    and high traveling speed status and push the Note: please refer to the torque table for traveling handle to the maximum stroke. Drive maintenance or when fastener becomes loose forward and backward by 30m for twice to decide the proper torque value. respectively.

  • Page 9: Lubrication And Operator Maintenance

    Lubrication Operator Maintenance Notice Lubrication intervals are all based on the condition that the machine operates under normal conditions. When equipment operates in multi-shift manner or is exposed harsh environment, lubrication frequency and lubricant amount shall be increased accordingly. Shaft lubrication Lubrication point: Lubrication point: Fuel Feeding Plug Capacity: decided as necessary...
  • Page 10 Hydraulic Return Oil Filter Lubrication point: filler cap Capacity: 170L/45gal Maintenance point: replaceable element Lubricant: hydraulic oil Interval: replace first after 50 hours of Interval: check oil level after the boom is operation, and later after every 300 lowered every day. Later replace oil after hours.
  • Page 11 Lubrication of maintenance point: oil filler Capacity: 4.5L/1.2gal Lubricant: CH-4 level engine oil Interval: check oil level every day. Replace every 500 hours or 6 months of operation, whichever comes first. Adjust Maintenance point: replaceable element the final oil level on the oil level gauge. Interval: drain once every day.
  • Page 12 Interval: replace every 500 hours or 6 months of operation, whichever comes first. 15. Diesel Prefilter-Deutz Lubrication point: oil filler Capacity: 4.5L/1.2gal Lubricant: CH-4 level engine oil Maintenance point: replaceable element Interval: check oil level every day. Interval: drain once every day. Replace Replace every 500 hours or 6 months of every 500 hours or 6 months, whichever operation, whichever comes first.
  • Page 13 Table 1-11 Fastening Torque of Thread Fasteners with Only Flat Gasket Fastening Torque (N.m) Thread Thread Pitch Grade 8.8 Grade 10.9 Diameter Standard Minimum Maximum Standard Minimum Maximum Coarse thread 1.25 Fine thread Coarse thread 1.25 Fine thread Coarse thread 1.75 Fine thread 1.25...
  • Page 14 Table 1-12 Fastening Torque of Thread Fasteners with At Least Spring Washer Fastening Torque (N.m) Thread Thread Pitch Grade 8.8 Grade 10.9 Diameter Standard Minimum Maximum Standard Minimum Maximum Coarse thread 1.25 Fine thread Coarse thread Fine thread 1.25 Coarse thread 1.75 Fine thread 1.25...

  • Page 15: Chapter 2 Overview

    3 months or bought inspections and maintenances recommended as second-hand equipment. The frequency of by SINOBOOM. Please refer to relevant inspection shall be increased according to stipulations of your country, region or local specific environment, strictness and operating area to obtain more requirements regarding frequency.
  • Page 16 SINOBOOM inspection forms. SINOBOOM equipment engineers recognized In the course of the inspection, please refer to by Hunan SINOBOOM shall have universally accredited education background, certificate, Annual Inspection Form of SINOBOOM Machine Preventive...

  • Page 17: Maintenance And Guide

    Service manual and Equipment engineer Pre-delivery applicable Before each sale, rent or lease. Owner, agent or user approved by inspection SINOBOOM SINOBOOM inspection form Used for 3 months or 150 hours Service manual and (whichever comes first); Equipment engineer Daily applicable Or idle for more than 3 months;...
  • Page 18 Removal and Installation of Parts after application of a layer of oil. Please do not unpack reusable bearing or new When mechanical assistance is required, bearing before installation. please use adjustable lifting device as far Please lubricate bearing as possible. All lifting tools (chains and overhauled bearing before installation.

  • Page 19: Lubrication And Information

    Hydraulic Oil Please refer to recommended viscosity Hydraulic System scope in Chapter 1. SINOBOOM recommends that SAE Contaminants are the primary factors that viscosity be of 32 or 46. impair the hydraulic system. They can In addition to the above, the only...

  • Page 20: Testing Of Oil Cylinder Shift

    Shift of Oil Cylinder how to select proper products. Please do not mix petroleum and synthetic oil. Table 2-2 Shift of Oil Cylinder SINOBOOM recommends the hydraulic Diameter of oil Maximum oil shall be replaced on a yearly basis. cylinder...

  • Page 21: Repair Guidance For Pin Roll And Composite Bearing

    The joint excessively tilts. Noise is produced from the joint The following operations shall be performed position in operation. during welding on SINOBOOM equipment The compound bearing shall be replaced Disconnect the battery.  in case of any of following situations: Disconnect connection of the torque pin ...
  • Page 22 GTBZ26&28J Maintenance Manual Table 2-3 Inspection and Preventive Maintenance Schedule Time Interval Pre-delivery Weekly Monthly Annual Every Area Prior-startup inspection preventive preventive (yearly) inspection or daily maintenance maintenance inspection years inspection Main boom assembly Main boom weldment 1,2,4 1,2,4 Hose/sling...
  • Page 23 Continued table 2-3 Inspection and Preventive Maintenance Schedule Time Interval Pre-delivery Weekly Monthly Annual Every Area Prior-startup inspection preventive preventive (yearly) inspection or daily maintenance maintenance inspection years inspection Ground control Function control locking, protection or braking device Foot switch Emergency stop switch (ground and...
  • Page 24 Continued table 2-3 Inspection and Preventive Maintenance Schedule Time Interval Pre-delivery Weekly Monthly Annual Every Area Prior-startup inspection preventive preventive (yearly) inspection or daily maintenance maintenance inspection years inspection Vehicle appearance inspection Machine annual inspection is due Unapproved change or addition Combine all safety publications General...
  • Page 25 Properly expanded and installed onto the rim Properly permitted part Fully charged Free from loose connection, correction or wear Check Implement Correctly seal Discharge, clean and refill...

  • Page 26: Chapter 3 Underframe And Turntable

    GTBZ26&28J Maintenance Manual Chapter 3 Underframe and Turntable to SINOBOOM parts catalogue for part no. of 3.1 Tires and Rims certified tires for specific machine model. If certified tire of SINOBOOM is not used, then Tires the replacing tire used shall have the following Installation of GTBZ26&28J uses solid...

  • Page 27: Removal Of Drive Motor

    prevent the risks of rim getting loose, bolts every 150 hours of running. rupturing and tires separating from the axle. Nuts suitable for the wheel taper angle 3.2 Removal of Drive Motor can be used only. The nuts shall be tightened to proper torque to After marking of the pipeline, disconnect ...

  • Page 28: Installation Of Reducer

    3.4 Installation of Reducer Support the outrigger with proper lifting equipment. Position alignment: align reducer brake oil port with bracket gap. Fit washer plane with the mounting surface, apply Loctite 272 thread locker to bolts and install them one by one. Tighten bolts with...
  • Page 29 GTBZ26&28J Maintenance Manual Figure 3-3 Reducer Breakdown Drawing...
  • Page 30 GTBZ26&28J Maintenance Manual Table 3-2 List of reducer parts Code Name Quantity Remarks 18112069 Inner hexagon socket head screw 79913245 Connector 18125605O O-ring 18125523 O-ring 11218001 Small spring 79913191 Spring sleeve 79913190 Piston 18125327 Glyd-ring for shaft 18125111 Glyd-ring for shaft...

  • Page 31: Adjustment And Maintenance Of Steering Mechanism

    GTBZ26&28J Maintenance Manual Table 3-2 List of reducer parts (continued) Code Name Quantity Remarks 79917003 Bulb 79916314 Planetary wheel 18121067 Cylindrical roller bearing 18125718 Elastic circlips for shaft 18125717 Elastic circlips for shaft 11218010 Compression Spring 79921012 Spline shaft components...

  • Page 32: Floating Balance Device (Floating Configuration)

    steering oil cylinders. the frame with axis pins to ensure four wheels While the machine travels in a straight line, are down to the ground even when the traveling paths of its left and right wheels will equipment is running on uneven roads. The overlap with traveling paths of rear wheels.
  • Page 33 Drive the vehicle down the sleeper. Operate the right floating oil cylinder based on aforementioned steps Testing on Locking of Balance Valve Please perform testing of floating system for the product equipped with a floating balance system in each quarter or after replacement of any system part or when you suspect the system works abnormally.

  • Page 34: Installation Of Cushion Block (Non-Floating Configuration)

    Figure 3-7 Structure Chart of Turntable 3.8 Installation of Cushion Block Rotation Mechanism (Non-floating Configuration) 1. Underframe, 2. Rotary support, 3. Turntable, 4. Rotary motor, 5. Rotary reducer Structure Removal of rotary reducer Remove valve on the rotary motor (4) and rubber hose and joint on the brake of the rotary reducer (5), and seal up all openings to prevent entry of dust into the...
  • Page 35 Tighten bolts with a spanner in a specified torque. After replacement and diagonal manner. tightening of bolts, it is necessary to recheck Fill the rotary reducer with gear oil until fastness of existing bolts. it covers the gear surface. Check connecting bolts between...
  • Page 36 Insert 0.04mm plug gauge to the Figure 3-10 according to the arrow in-between of bolt and hardened illustrated direction. washer at the position illustrated in Main boom full luffing Measuring point Figure 3-9 Boom Position Drawing 1 Fully outstretched Measuring point Figure 3-10 Boom Position Drawing 2...
  • Page 37 that provides proper support. Removal of rotary support Draw a line on the rotary support outer Operate panel on the ground and operate race and the frame with a proper tool for the basic arm until it contacts the top alignment during installation.

  • Page 38: Removal And Installation Of Rotary Reducer

    Product Thread Installation Torque fasten bolts and apply Loctite 242 Model Specification of Rotary Support sealant. GTBZ26 580Nm 11. Reconnect hydraulics pipes to relevant GTBZ28 ports that are disconnected in the process 580Nm of removal. 12. Withdraw the traveling crane.
  • Page 39 Remove oil drain plug (8) and drain oil Figure 3-14 Removal of Motor inside the gearbox. 1. Motor seat 2. Gerotor motor 3. Washer 4. Loose fixing device of the hydraulic hose Hexagon bolt with a spanner and remove the hydraulic Removal of Reducer Assembly hose (7).
  • Page 40 Removal of Brake Remove retainer ring for shaft (4) and separate first stage planet carrier (5) and Remove vent plug (1), screw (2) and second stage sun gear (6). standard spring washer (3). Remove motor seat (4) and O-ring (5). Remove spring (6), piston (7), O-ring (8), retainer ring (9), O-ring (10) and retainer ring (11) in turn.
  • Page 41 gasket (18) into side hole of brake housing (19). Figure 3-18 Removal of Second Stage Planet Gear Set Assembly Figure 3-19 Installation of Brake 1. Retainer ring for shaft 2. Bearing 3. Second stage planet gear 4. Retainer ring for shaft 5. 1.
  • Page 42 Install retainer ring for shaft (4) into the groove at the end of the spline shaft (14). Assemble bearing (2) and second stage planet gear (3) and install them onto the second stage planet carrier (6) together. 10. Install retainer ring for shaft (1) into the groove of second stage planet carrier (6).

  • Page 43: Engine

    spline housing (3) mesh with the inner gerotor motor (2) with four bolts (6) and gear ring of the brake assembly (5). washers (5) and exert some torque to the Press O-ring (2) and dust cover (1) into four bolts (6). the inner hole of the brake assembly.
  • Page 44 Remove the oil level gauge. requirements. Use clean non-fiber cloth to scrub the oil level gauge clean. Insert the oil level gauge into the brake and then take it out. Check oil level and fill to the maximum level if necessary according to oil and type listed in the operator manual of engine manufacturer.
  • Page 45 Use proper disassembling tools to bracket. remove the old engine oil filter element. Apply a layer of diesel to the rubber Collect the leaking oil. washer of the new filter element. Wipe dust on seal surfaces of the filter Manually tighten screws on the new filter bracket.

  • Page 46: Chapter 4 Boom And Working Platform

    Chapter 4 Boom and Working Platform the controller within 7 seconds. If the operator 4.1 Boom System keeps using any function, the controller will keep the enabled status; the controller will Wirerope Break Detection System keep the enabled status within 7 seconds after the last function is used.

  • Page 47: Boom Structure

    ①Axis pin ②Stop pin ③Bolt 4.2 Boom Structure Remove stop pin fixing bolts, stop pins and axis pins that connect the boom Removal of Boom Assembly leveling oil cylinder with the support Park the equipment on a solid and level arm.
  • Page 48 Remove stop pins and fixing bolts as Use proper lifting equipment to separate illustrated in no. 2. the jib boom assembly from the boom Remove two axis pins as illustrated with and put it on a proper support. proper copper punch and hammer. Remove axis pins as illustrated by No.
  • Page 49 Remove dust brush at the boom tail. Remove slide block at the boom tail. ①Slide block fixing bolt ②Dust brush Pull out the first telescopic arm and the second telescopic arm from the tail of the basic arm and pay attention not to twine ①...

  • Page 51: Boom Cleaning Standard

    The followings are standards for cleaning the end wire clamp are broken. inside of the main boom when dirty. SINOBOOM recommends its users to maintain their equipment according to instructions in SINOBOOM Service Manual.
  • Page 52 excessive wear. one broken, and any other broken at the Lubricate the wireropes already checked end clamps. with lubricant before reinstallation. Wirerope Tensioning Operation Steps Items of Inspection in Three Months With the boom fully retracted, remove all Remove the main boom cover and covers and visually check thread fixing device visually check whether the wireropes before any adjustment to wireropes of the...
  • Page 53 Keep the boom at the horizontal position (+/-5°) and outstretch the boom from the fully retracted position to 1.5m -1.8m. Remove locknuts from the fixing device of retracting wireropes (as shown in the figure below). Use torque spanner to apply 112 N·m torque to adjusting nuts of the two retracting wireropes alternatively until the required torque is met.

  • Page 54: Wirerope Break Detection Proximity Switch

    exposed main boom part complies with the Install the switch until the switch tolerance requirement in “Figure 4-1 Wirerope contacts the detection block. Tensioning Drawing”. Uncrew the switch by 3mm-5mm to The above method applies equally to the achieve correct sensing scope. conditions when outstretching part of the Tighten the safety nuts.

  • Page 56: Chapter 5 Hydraulic System

    GTBZ26&28J Service Manual Chapter 5 Hydraulic System Working fence leveling Steering Center rotation Slewing Generator Telescopic Luffing Working fence rotation Platform Valve Block Dual-speed/brake/floating valve block Center rotation Center rotation Right rear wheel Drive Valve Left rear Block wheel cooler...
  • Page 57 GTBZ26&28J Service Manual Working fence leveling Bidirectional balance valve Steering Center rotation Slewing Telescopic Generator Luffing Working fence rotation Platform Valve Block Dual-speed/brake/floating valve block Center rotation Center rotation Right rear wheel Left rear wheel cooler Figure 5-2 Hydraulic Schematic (4-Wheel Drive)

  • Page 58: Chapter 6 Electrical System

    GTBZ26&28J Service Manual Chapter 6 Electrical System Time Closing Reset Delayed Disconnection Button Delay Relay Model: ST3PF Contact Capacity AC250V (resistance) Blue Brown Blue Brown Black Blue Brown Black Black Black White 120 ohm Power Supply- Power Supply+ Power Supply-...
  • Page 59 GTBZ26&28J Service Manual blue) black) 120 ohm Figure 6-2 Electrical Schematic of Platform...

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