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  Preface Thank you for selecting XZ320 horizontal directional drill produced by Xugong Road Construction Machinery Co., Ltd. The machine can operate effectively with longer service life by accurate usage and maintenance. Please read and understand the manual especially safety notices and operate according to regulations before usage.

• Page 3: Table Of Contents

  Contents I n t r o d u c t i o n … … … … … … … … … … … … … … … … … … … … … … … . . … … … … 1 Structure, performance and main parameters……………………………………..3 Operating principle and structure ………………………………………………..5 S af et y re qu ireme nts …………………………………………………….

• Page 4: Introduction

  XZ320 Horizontal Directional Drill Usage Manual Introduction XZ320 horizontal directional drills (hereinafter referred to drills) are a kind of construction machine to set various underground utilities without excavating the earth’s surface. They are widely used to set pipes which pass across…

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  XZ320 Horizontal Directional Drill Usage Manual The most advanced jaw vice and double-floating-gear of power head in the world shall be selected and specific patent technique, namely, floating strong auger stem holder shall be adopted when assembling drilling stems. It has large shackle torque, quick and reliable holding and simple maintenance.
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  XZ320 Horizontal Directional Drill Usage Manual Structure, Properties and Main Parameters 1. Please refer to Figure 1 for outline dimension of drills. Figure 1 Outline drawing of drill…

• Page 7: Operating Principle And Structure

  Operating principle and structure 1. Operating principle XZ320 horizontal directional drills mainly consist of upper directional drill part and lower traveling part. Engine of lower part drives oil pump to provide power to motor then drive driving wheel by driving speed reducer to realize rotation and brake functions of chassis.

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  Power divider can be connected to set pipe during the final back drilling and towing until all pipes are positioned. Mud shall be supplied during the entire process. 2. Main structure XZ320 horizontal directional drill is an integral drilling device. It mainly consists chassis, power…
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  XZ320 Horizontal Directional Drill Usage Manual shall be driven by hydraulic motor. Drill bit shall be mainly driven for revolution, drilling and back towing and hollow hole of drill collar is the mud channel to enter into auger stem. 2.4 Drilling rig As a sliding &…
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  XZ320 Horizontal Directional Drill Usage Manual · Water temperature gauge Water temperature gauge of engine is used to display temperature of cooling liquid of engine. Water temperature alarm switch is off and indicator lamp is on when water temperature is higher than setting value and shutdown is required for inspection.
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  XZ320 Horizontal Directional Drill Usage Manual Push-pull speed of power head is controlled by one switch. Push-pull speed of power head will be doubled by pressing high-speed push-pull switch of power head and normal speed will be restored by loosening the switch.
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  XZ320 Horizontal Directional Drill Usage Manual Figure 2 Principle diagram of hydraulic system…
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  XZ320 Horizontal Directional Drill Usage Manual 2.9 Principle of electric system shown in Figure 3 Figure 3 The 1 schematic diagram of electric system…
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  XZ320 Horizontal Directional Drill Usage Manual Figure 3 The 2 schematic diagram of electric system…
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  XZ320 Horizontal Directional Drill Usage Manual Figure 3 The 3 schematic diagram of electric system…
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  XZ320 Horizontal Directional Drill Usage Manual Figure 3 The 4 schematic diagram of electric system…
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  XZ320 Horizontal Directional Drill Usage Manual Figure 3 The 5 schematic diagram of electric system…
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  XZ320 Horizontal Directional Drill Usage Manual Figure 3 The 6 schematic diagram of electric system…
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  XZ320 Horizontal Directional Drill Usage Manual IV. Safety Requirements Severe casualty may be caused if not abiding by danger, warning or Attention shown in the manual and safety label of drills. Danger: Death or severe injury may be caused due to direct dangers if not abiding by danger, warning or note shown in the manual and safety label of drills.
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  XZ320 Horizontal Directional Drill Usage Manual caused by leakage of hydraulic oil, drilling liquid and washing system with high pressure. 1.9 Be sure not to operate the machine in locations with combustible gas or dangers may be caused. 1.10 Please contact local dealer if there is any doubt for equipment operation, maintenance and usage.
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  XZ320 Horizontal Directional Drill Usage Manual 5.6 Re-drilling or entry into the site is not allowed without permission of power department. 6 Operation when fuel gas pipes are broken by drilling： 6.1 Close the engine and eliminate various fire sources instantly.
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  XZ320 Horizontal Directional Drill Usage Manual 9.2 Detail precaution measures of various kinds of construction sites 9.2.1 Detail precaution measures of power site Take one or all methods as follows: 9.2.1.1 Electric wires shall be exposed by manual excavation. 9.2.1.2 Power failure during construction: Power department shall inspect power wires before restoring power supply.
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  XZ320 Horizontal Directional Drill Usage Manual Keep far away from it due to possible casualty even death by touching electrified body. Keep far away from it due to possible severe casualty caused by movable parts. Use suitable process, procedure and facility or keep far away from it due to possible casualty even death caused by protrusion.

• Page 24: Usage And Operation

  Manual of XZ320 Horizontal Directional Drill Usage and operation 1 Functional instructions of switch, handle or instrument Please refer to Figure 4 for operation panel of left console and Table 2 for detailed functions.

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  Manual of XZ320 Horizontal Directional Drill Figure 4 Operation panel of left console Table 2 Left console switch Name Function Front jaw vice switch To control clamping or loosening of front jaw vice Post jaw vice switch To control clamping or loosening of post jaw vice…
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  Manual of XZ320 Horizontal Directional Drill Please refer to Figure 5 for operation panel of right console and Table 3 for detailed functions. Figure 5 Operation panel of right console…
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  Manual of XZ320 Horizontal Directional Drill Table 3 Right Console Switch Name Function Shutdown switch of engine To control engine shutdown Startup switch of engine To control engine startup Front jaw vice switch To control clamping or loosening of front jaw…
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  Manual of XZ320 Horizontal Directional Drill Table 4 Function of auxiliary console Name Function Power switch Main power switch of the system Key switch Used for engine startup and system electrification Machine To display engine oil pressure pressure gauge Fuel oil gauge…
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  Manual of XZ320 Horizontal Directional Drill Table 5 Operation panel of post console Name Function Liquid control handle To control expansion/retraction of of left leg left leg Liquid control handle To control expansion/retraction of of right leg right leg Inclined liquid control…
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  Manual of XZ320 Horizontal Directional Drill zones. 2.1.4 Provide phone numbers of local rescuing and medical departments as well as phones. 2.2 Site exploration Construction site shall be inspected as follows before equipment ： positioning 2.2.1 Overall flatness and slope of construction site 2.2.2 Height drop of construction site such as hill and valley, etc;…
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  Manual of XZ320 Horizontal Directional Drill construction site with buffer zone of at least 3m away from equipment. 2.4.3 Space Check if perforation and final hole have sufficient space to guarantee gradual bending of auger stem. Please refer to “The minimum angle buildup distance”…
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  Manual of XZ320 Horizontal Directional Drill 2.5.1.2 “A” and “B” refer to height of carrier front end and post end to the ground. “C” refers to horizontal distance of front and post ends and formula of perforation angle is follows:（ （B-A）/C）×100 （Please refer to Figure 8.）…
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  Manual of XZ320 Horizontal Directional Drill loose bolts or not. 2.6.3 Check if there is oil, water or gas leakage or not. 2.6.4 Check if display of various manipulation instruments is normal or not. 2.6.5 Check if assorting facilities are complete or not.
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  Manual of XZ320 Horizontal Directional Drill avoid bending and distortion of auger stem. Figure 9 Beginning pit 2.7.2 Bore path record Record actual bore path after construction. List skewness, depth of every auger stem and describe the construction process integrally. In addition, construction sketch shall be mapped to record back tow depth and approximate position.
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  Manual of XZ320 Horizontal Directional Drill 2.10.1.3 (As shown in Figure 10), the probe shall be connected to container tube. Figure 10 Assembly of drilling rig 2.10.1.4 Transmitter installation： Replace old battery, place signal rod in its accurate position and use guide instrument accurately according to manual.
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  Manual of XZ320 Horizontal Directional Drill · Pull-rod axles (3) (4) shall be screwed down to rotation body (5). · Rotate special pliers to insert pull-rod axles (3) (4) into special pliers (1) (2) then into elastic pins (6) (7) respectively.
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  Manual of XZ320 Horizontal Directional Drill 2.10.6 Connect the 1 auger stem. 2.10.6.1 Start up the engine. 2.10.6.2 Align buffer rod of the front wrench. 2.10.6.3 Clamp the drilling rig by front wrench. 2.10.6.4 Load the auger stem. 2.10.6.4.1 Lubricate main axle connector thread of power head.
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  Manual of XZ320 Horizontal Directional Drill Note：Drills shall be anchored accurately before perforation. 3.1 Operation of feeding & revolution handle Feeding & revolution handle has 2 operation locations to allow complex effect of 4 basic motions. Please refer to Figure 13 for function and position of operation handle.
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  Manual of XZ320 Horizontal Directional Drill 3.2.4 Power head shall move forward slowly. Strive to drill the 1 auger stem straightly. 3.2.5 Monitor various surveying meters. 3.3 Add auger stems Warning ： Please keep far away from rotary axle due to possible death or casualty.
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  Manual of XZ320 Horizontal Directional Drill 3.3.3 Close clamp switch of holder. 3.3.4 Rotate the lifting device to move the auger stem to its axle. 3.3.5 Lubricate front threads of auger stem. Note：Thread oil shall be brushed on threads of auger stem and short connector when installing the auger stem.
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  Manual of XZ320 Horizontal Directional Drill 3.7 Monitor various surveying instruments and shutdown is required for inspection if any is any problem. 3.8 Drill bit shall be positioned by guide instrument after drilling for at least half of length of auger stem.
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  Manual of XZ320 Horizontal Directional Drill bending angle of single auger stem or it may be damaged.) Attention：Stop operation and find out reasons instantly if single auger stem has larger angle variation within shorter distance. Auger stem, drill bit, beginning rod, pivot plate even probe rod may be damaged if continuing to operate the machine.
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  Manual of XZ320 Horizontal Directional Drill reject due to super-low success rate. 6 Soil exit of drill bit Drill bit shall be led to target pit or protrude out of the ground upward. Pay attention that deformation of auger stem shall be within the minimum bending radius.
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  Manual of XZ320 Horizontal Directional Drill 7.1.6 Ensure that mud can be jetted from all nozzles. 7.2 Re-expanding prompt 7.2.1 Strive to straighten drilling route during plan. Inspect bending extreme of back towing materials for gradual bending. Mud quality is important for re-expanding so it is required to know soil quality, underground water, additive and mixed mud.
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  Manual of XZ320 Horizontal Directional Drill Figure 15 for clamping. Figure 15 Clamping diagram of auger stem 8.1 Stop the power head and hold the auger stem when connector is between front and post jaw vices. Press clamping switch of front jaw vice (2) until auger stem is clamped with certain pressure.
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  Manual of XZ320 Horizontal Directional Drill stem. 8.4.2 Rotate the main axle and move the power head forward. Connect main axle pin to the box of auger stem then screw down the connector. 8.4.3 Open the front jaw vice to loosen the auger stem.
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  Manual of XZ320 Horizontal Directional Drill maintain balanced pressure in the hole or drill bit of larger diameter shall be adopted for expanding, borehole cleaning and pipe layout. PE or PVC tubes with higher hardness and strong resistance pressure shall be used and pipes with slight hole shrinkage generally can be set after borehole cleaning.
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  Manual of XZ320 Horizontal Directional Drill 9.6.4 Mud effusion prevention measures 9.6.4.1 Design bore depth shall be added from 6m to 9m and original depth can be added from 9m to 12m. 9.6.4.2 Improve the drill bit structure to strive to mix mud in the bore into mud.
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  Manual of XZ320 Horizontal Directional Drill Pipes with large deformation shall be repaired or they shall be rejected. 9.11 Pipe jamming Pipes may be jammed in the hole due to many residual mud blocks, hole collapsing and hole shrinkage. Back tow pressure gauge will increase gradually before jamming.

• Page 50: Lubrication, Repair And Maintenance

  Manual of XZ320 Horizontal Directional Drill VI. Lubrication, repair and maintenance 1 Operation and maintenance of rubber crawler 1.1 Tension force of rubber crawler Tension force of rubber crawler must be adjusted before operation of driving device. (Rubber crawler has been adjusted before leaving the factory.) It must be adjusted if crawler has large pendant length during…

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  Manual of XZ320 Horizontal Directional Drill shall be removed instantly or service life of crawler may be damaged. Warning:Rubber crawler damaged by improper operation is not within regulated scope of “three warranties” of the machine.
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  Manual of XZ320 Horizontal Directional Drill 2 Equipment lubrication and maintenance · Check if various connectors are tightened and pipelines are damaged or not before operation of lubrication system. · Leakage of hydraulic oil is difficult to inspect by visual observation. It is preferred to inspect by a hard paperboard or wooden pieces.
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  Manual of XZ320 Horizontal Directional Drill 2.3 Maintenance of power head shown in Table 9 Table 9 Maintenance of power head Lubrication item Hour Lubrication oil Inspection of lubrication oil in L-CKD220 power head SHELL OMALA EP150 Inspection of driving speed…
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  Manual of XZ320 Horizontal Directional Drill stem with special lubrication grease before usage for the 1 time and after drilling. 2.7 Ordinary inspection shown in Table 12 Table 12 Ordinary inspection Interval Item (hour) Inspection of tensity of feeding chain…
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  Manual of XZ320 Horizontal Directional Drill Belt inspection Replacement short If necessary connector Replacement of sliding If necessary plate of power head Warning!Close engine and manipulate various handles for unloading and descend, lock or support various ascending devices before cutting off hydraulic pipes. Various connectors shall be covered by thick cloth and loosened by connector nuts to release residual pressure.
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  Manual of XZ320 Horizontal Directional Drill 2.8.5 Short connector 2.8.5.1 Replace short connector of drill collar if necessary. 2.8.5.2 Unload thread connection of drill collar and short connector. 2.8.5.3 Replace old short connectors and brush thread adhesive on threads. 2.8.5.4 Install new short connectors with tightening by jaw vice.
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  Manual of XZ320 Horizontal Directional Drill Air filter shall be replaced if yellow strip in repair indicator reaches red line position or operation for 1,000 hours. It also shall be replaced constantly during construction in dirty environment. Muffler 2.9.3 It shall be replaced if necessary.

• Page 58: Transportation, Storage And Protection

  XZ320 Horizontal Directional Drill Manual VII. Transportation, Storage and Protection 1. Transportation notice Drill shall be transported by truck during distance transfer. It has a driving chassis so it can move onto the vehicle by support (welded by owner)without relying on crane.

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  XZ320 Horizontal Directional Drill Manual Warning! Drill shall move forward during motion on the horizontal ground or downslope pavement and retreat during upslope or moving to tow truck to strengthen safety precaution measures and facilitate operation. Please operate as follows when entering into the site or finishing drilling;…
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  XZ320 Horizontal Directional Drill Manual VIII. Daily Storage and Protection Anchorage seat must be placed on the ground thoroughly during drill storage so that angle adjustment oil cylinder is not under the stress status. Manipulation rods of various valve blocks shall be in middle positions.
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  Manual of XZ320 Horizontal Directional Drill Appendix A Mud Consumption Guarantee sufficient mud in the hole during drilling and re-expanding for smooth construction. Mud demand shall be determined according to dimension of re-expanding hole, back towing materials and nozzle dimension.
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  Manual of XZ320 Horizontal Directional Drill Diameter of re-expanding drill bit (or Gallon/foot Liter/meter back towing pipe) 13.5＇ 34.29 cm 7.44 92.35 35.56 cm 99.31 14＇ 14.5＇ 36.83 cm 8.58 106.54 15＇ 38.1 cm 9.18 114.01 15.5＇ 39.37 cm 121.74 16＇…
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  Figure 16 Relation diagram of pressure and flow In Figure 15: A:Flow of every nozzle; Unit: Liter/minute; B:Nozzle pressure; Unit: Kilogram/centimeter C:Nozzle diameter; Unit: Millimeter; Appendix C The Maximum and Length of Tow Pipes Please refer to following list for the maximum operating capacity of XZ320…
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  Manual of XZ320 Horizontal Directional Drill horizontal directional drill. (Actual capacity relates to soil quality and mud greatly and the list is only for reference.) Diameter of drill bit and the maximum length of tow pipe (or steel tube) Diameter of drill bit and the maximum length of tow pipe (or plastic tube)
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  徐州工程机械集团有限公司 XUZHOU CONSTRUCTION MACHINERY GROUP Co.,Ltd. 生产单位：徐州徐工基础工程机械有限公司 Xuzhou Xugong Foundation Construction Machinery Co.,Ltd. 地址：中国.江苏.徐州经济开发区驮蓝山路 36 号 Add：No.36 Tuolanshan Road, Economic Developing zone,Xuzhou JiangSu, China 全国统一客服热线： （Tel） ：400-110-9999 销售部电话（Tel） ：0516-87738167 87738169 87892612 传真（Fax） ：0516-87892627-103、104、109 服务处电话（Tel） ：0516-87892690 87738150 传真（Fax） ：0516-87738173 邮编（Postcode） ：221004 网址：http：//www.xcmgjc.com 2011 年…

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