XCMG XZ320 Operation Instructions
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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.
Manual shall be placed with equipment together for reference at any time.
The manual includes structure, performance, operation, lubrication,
maintenance, storage and transportation. Please refer to attached
instructions for usage instructions and maintenance of engine, hydraulic
pump, motor, speed reducer and guide detector, etc.
Warning!Reconfiguration may cause dangers without
manufacturer’s permit before usage. Please consult to
manufacturer or designated dealer before reconfiguration or
manufacturer has no responsibility for any consequence caused
by impermissible reconfiguration.
Note: XZ320 horizontal directional drills have gained many patent licenses
issued by the State Intellectual Property Office (SIPO) (with ZL patent No.:
031428282, 02288040.2, 02283784.1 and 02288046.1). Anybody who
counterfeits it will be prosecuted for his legal responsibility.
We may modify description and technical specification of the manual at any
time. We have rights to improve and create the equipment. Please contact
Xugong Road Machinery Co., Ltd, dealer or log on WWW.XCMGJC.COM to
query relational information if you want to know the latest information.
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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
Safety requirements… …… …… …………… …… …… …… …… … …. .… …… .. 1 6
Usage and operation … …… ……… …… …… …… …… …… …… …. .…… …..21
Lubrication, repair and maintenance…………… …………………………………45
Transportation, storage and protection ………………………… ………………52
Appendix A: Mud cons u m p t i o n ………… … … … … … ……… … …… … … … 56
Appendix B: N o zzl e f low … … … ………… … … ………………………………57
Appendix C: The maximum diameter and length of tow pipe…………………58
XZ320 Horizontal Directional Drill Usage Manual
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I. 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
highways, railways, buildings, rivers, downtown area, historic district, crop
and vegetation protection zones which are difficult to excavate as well as
water supply, coal gas, power supply, telecommunication, natural gas and
petroleum pipes. Drill bit plates and re-expanding hole with different models
shall be selected according to pipe diameter. They have characteristics
such as compact structure, high rotation speed of power heads, large torque
and push-pull effort, quick driving speed, flexible operation, quick
construction speed, low comprehensive expense and high economic and
social benefits.
1. Designation:
XZ 320
Pull-back force: 320kN
Horizontal directional drill
2. Applicable scope
It is suitable to sandy soil, clay and pebble, etc. Most of non-hard rocky
zones in China can be constructed and ambient temperature is between
-10℃ and +45℃.
3. Product characteristics
3.1 Reliable power
Total power is 140kW for water-cooled vortex pressurized engine with 6
cylinders. It can provide torque of 12,000N·m and pull-back force of 320kN
(which can reach 400kN if driven by oil cylinder).
3.2 Large-flow mud
Mud pump can provide mud with sufficient flow during synchronous pushing,
pulling or back rotation during drill operation.
3.3 High rotation speed of power head
Main axle of power head can drill with high speed to increase operating
efficiency when drilling and towing auger stem. Power head also can rotate
with high speed to increase operating efficiency when drilling pivot holes
and small-diameter holes.
3.4 Floating strong auger stem holder
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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. Double-floating-gear can be adopted to reduce thread
abrasion in 2 ends of auger stem effectively and prolong service life of
auger stem so as to reduce construction cost as well as rupture risk of auger
stem.
3.5 Rubber crawler
Hydraulic rubber crawler has the minimum damage to side pavement, lawn
and beauty spots.
3.6 (Optional) hydraulic anchor devices
Hydraulic drive with high efficiency can be selected to position drills quickly,
reliably and stably.
3.7 (Optional) auxiliary loading/unloading device of auger stem
Auxiliary loading/unloading device of auger stem can be selected to reduce
operator’s effort.
3.8 Hydraulic power assisting device
Hydraulic power assisting device shall be provided for complex stratums
with jamming of a drilling tool. The maximum back-pull force can reach
40kN to reduce construction risks effectively.
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II. Structure, Properties and Main Parameters
1. Please refer to Figure 1 for outline dimension of drills.
Figure 1 Outline drawing of drill
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XZ320 Horizontal Directional Drill Usage Manual
Item
Unit
Parameter
The maximum
back-tow/feeding force
kN
320(400)/200
The maximum operating
speed of power head
m/min
20
The maximum torque of
power head
N·m
12000
Rotation speed of power
head
r/min
0～140
Bore diameter
mm
Φ127
The maximum diameter of
re-expanding hole
mm
Φ800
Length of (single) auger
stem
m
3
Diameter of auger stem
mm
Φ73
(Extreme) bending radius of
auger stem
m
65
The maximum mud flow
L/min
320
The maximum mud pressure
MPa
8
Engine model
D6114ZG
Rated power
kW/r/min
140/2300
Driving speed
km/h
3
The maximum climbing
gradient
％
30
Machine weight
kg
10500
Outline
dimension
(under
transportation
status)
Length
mm
7100
Width
mm
2250
Height
mm
2450
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2. Please refer to Table 1 for main performance and parameters.
Table 1
III. 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.
Drilling: Drilling inclination shall be adjusted firstly and the machine shall be
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fixed by anchor device. The probe shall be installed into the drill bit to
connect drill bit body, auger stem and power head for drilling. Mud pump
also shall pump mud during synchronous drilling for soil cutting and heat
dissipation of protective wall and drill bit during drilling or back towing.
Position of drill bit shall be measured by receiving signals issued by probe
in the wireless probe through earth’s surface receiver. Power head shall
stop rotation and adjust inclined drill bit plate toward required direction if
necessary. Ground receiver will monitor feeding direction when pushing
power head without rotation. Drilling shall be continued after defining
accurate direction. Direction can be adjusted for many times during drilling
until ending.
Pipe layout: Different re-expanding hole drill bits shall be used after drilling
according to pipe diameter and category for once or multiple back drilling to
reach required aperture. 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 of chassis, power head, drilling rig, engine system,
semi-automatic access assembly of auger stem, jaw vice, anchor device,
drilling tool, hydraulic system, electric system and mud system, etc.
2.1 Chassis
Chassis mainly consists of automatic chassis, left and right driving devices.
Hydraulic leg is supplied in the rear of automatic chassis.
Driving device consists of crawler tension device, rubber crawler, drive
wheel, guide wheel, supporting wheel and driving speed reducer, etc.
Embedded planetary reducer (including motor) shall be provided for driving
speed reducer.
Crawler tension device consists of tension oil cylinder, guide wheel and oil
cup, etc. It is used to maintain certain tensity of crawler by adopting
lubricating grease.
2.2 Engine system
As power source of the entire system, engine system includes engine,
water heat dissipater, air filter and muffler, etc. D6114 pressurized
water-cooled engine of Shanghai Diesel Engine Co., Ltd shall be selected
and its rated power is 140kW/2300r/min.
2.3 Power head
As a main operating mechanism of machine, output axle of power head
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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 & supporting device of power head, drilling rig shall slide on the
guide rail by push-pull mechanism of oil cylinder to bear push-pull and
rotation torque of the entire machine.
2.5 (Optional) auxiliary loading/unloading device of auger stem
Auxiliary loading/unloading device of auger stem shall be used to lighten
operator’s intensity and accelerate construction schedule.
2.6 Strong auger stem holder
It includes upper and lower jaw vices and it is in the previous part of sliding
support. Upper jaw vice has clamping and rotation motions. Upper and
lower jaw vice will coordinate with motion of power head to screw down or
loosen threads of auger stem. Special buffer device of our company shall
be used to reduce thread abrasion and prolong service life of auger stem.
2.7 (Optional) anchor devices
Ground anchor is used for anchorage of the entire machine. It is located in
the front end to increase stability. It shall be pressurized by oil cylinder for
drilling in/out of anchor rod driven by low-speed and large-torque motor.
2.8 Vehicle-mounted mud system
Large-flow mud pump of 320L/min shall be adopted for vehicle-mounted
mud system. Horizontal reciprocating single-effect piston pump with 3
cylinders shall be used as mud pump which is driven by hydraulic motor to
provide pressure mud for drill.
2.9 Electric system
Electric system of horizontal direction drill mainly consists of engine
monitoring, mud pump control, jaw vice control, high-speed driving control
and high-speed push-pull control of power head, etc.
2.9.1 Engine part and lamp alarm:
DC 24V single-line power shall be adopted for the machine with negative
electrode ground system. Power shall be generated by 2 series storage
batteries of 12V and power generator. Storage battery shall supply power
during vehicle startup and power generator shall supply DC 24V to the
machine power utilization system and charge storage battery at the same
time after operation.
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·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.
·Oil pressure gauge
Oil pressure gauge is used to display pressure of power generator oil. Oil
pressure alarm switch is closed and indicator lamp is on when oil pressure
is less than setting value and shutdown is required for inspection. (Indicator
lamp will be on if power generator stops operation.)
·Fuel oil gauge
Fuel oil level indication of engine: Oil shall be added in a timely manner if
fuel oil level is super-low.
·Hourly rotation speed list
To record operating hours and current rotation speed of power generator.
·Voltmeter
The list is to measure voltage of electric system.
·Jamming alarm of hydraulic filter
Indicator lamp is on to indicate that oil filter shall be cleaned due to
jamming.
2.8.2 Mud pump control
Mud pump switch is used to control mud pump and mud pressure can be
displayed by mud pressure gauge. Mud pressure variation shall be
monitored carefully during operation. Check if mud channel is jammed or
not if mud pressure is high and operation speed of piston reduces.
2.8.3 Jaw vice control
·Rotation switch of post-jaw vice
The switch is used for clockwise or counter-clockwise rotation of post
wrench.
·Clamp switch of post jaw vice
The switch is used to control clamp of post jaw vice.
·Clamp switch of front jaw vice
The switch is used to control clamp of front jaw vice.
2.8.4 Double-speed control of power head
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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. High-speed push-pull can be adopted to save auxiliary period
during drilling or back towing if main axle is not connected to auger stem.
(Mud pump will stop operation automatically when using high-speed
push-pull function.)
High-speed rotation of power head shall be controlled by manual valve on
power head box. Manipulation rods of the valve shall be placed in different
positions to guarantee different rotation speed of power head. (Please do
not use high-speed rotation function of power head during large-aperture
construction.)
2.9 Principle of hydraulic system is shown in Figure 2.
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Figure 2 Principle diagram of hydraulic system
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XZ320 Horizontal Directional Drill Usage Manual
Figure 3 The 1st schematic diagram of electric system
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2.9 Principle of electric system shown in Figure 3
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XZ320 Horizontal Directional Drill Usage Manual
Figure 3 The 2nd schematic diagram of electric system
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XZ320 Horizontal Directional Drill Usage Manual
Figure 3 The 3rd schematic diagram of electric system
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XZ320 Horizontal Directional Drill Usage Manual
Figure 3 The 4th schematic diagram of electric system
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XZ320 Horizontal Directional Drill Usage Manual
Figure 3 The 5th schematic diagram of electric system
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XZ320 Horizontal Directional Drill Usage Manual
Figure 3 The 6th schematic diagram of electric system
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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.
Warning: Death or severe injury may be caused due to potential
dangers if not abiding by danger, warning or note shown in the manual
and safety label of drills.
Attention: Slight or medium injury may be caused due to potential
dangers if not abiding by danger, warning or note shown in the manual
and safety label of drills.
Warning： Please read and master the manual before startup to
operate equipment according to regulations. The manual shall be
placed in convenient locations with timely supplementation or
replacement if it is lost, damaged or difficult to read.
1 Please read following content carefully on the construction site
before operating the equipment：
1.1 Only trained operators with rich experience can operate the drill. Be
sure to read the manual and accept operation training before operation.
1.2 Please contact local utility pipe company before construction for
assistance with position detection and mark of original underground pipes
and cables along the route. Please contact relevant departments in a
timely manner if pipes are damaged during construction.
1.3 Construction site shall be divided according to underground dangerous
articles to select suitable tools, equipment, safety facilities and construction
methods.
1.4 Construction scope shall be marked obviously and irrelevant persons
can not enter into it within construction scope.
1.5 Construction staff shall wear suitable safety protection clothes such as
rubber insulation gloves and shoes, etc.
1.6 Inspect underground dangerous articles, safety situations and
emergency measures carefully before formal bootstrap. Responsibility of
every worker also shall be defined definitely.
1.7 Equipment shall be operated carefully with instant shutdown for
inspection under abnormal conditions.
1.8 Confirm all pipes are connected reliably to avoid severe casualty
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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.
2 User’s facilities
2.1 Fire extinguisher
Be sure that fire extinguisher can extinguish fire caused by oil or power.
2.2 Lighting lamp
Other lighting lamps shall be provided if necessary.
3 Classification of underground dangerous articles
3.1 Power wire 3.2 Natural gas pipe
3.3 Optic fiber cable 3.4 Water pipe
3.5 Blow-off pipe 3.6 Pipes to convey other chemicals, liquid or gas
4 Electric shock knowledge
4.1 Current will be conveyed to underground by various ways besides
channel of the minimum resistance.
4.2 Current also can be conveyed to equipment by cables of auger stem,
hose and machine.
4.3 Casualty or death may be caused by low-voltage current.
4.4 Electric shock shall be assumed under following circumstances：
4.4.1 Power failure 4.4.2 Smoking
4.4.3 Explosion 4.4.4 Crack noise
4.4.5 Electric arc
5 Operation during electric shock:
5.1 Remain on our respective positions on the drill or grounding cushion.
5.2 Anybody is strictly prohibited to contact or access drill.
5.3 Contact relevant power departments instantly.
5.4 Do not touch auger stem and drill body by hand or tool.
5.5 Drill operator can not leave the machine until power department
confirms power cutoff and safety of work zone.
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