DRILL-QUEST ENGINEERING GMBH
MODEL YD160-1/2
HYDRAULIC POWER STATION
OPERATION MANUAL
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1 Summary
Model YD160-1/2 hydraulic power station is an independent hydraulic power unit, which is combined by oil
pump, control valve, oil tank, electric motor, filter, gauge, etc. The motor of Model YD160-1 is common
three-phase motor, not flame-proof type.The motor of Model YD160-2 is flame -p roof fh ree -pha se
inductio n mo to r.It is applicable for drilling pipe tong, screwing machine and other hydraulic equipment.
This hydraulic power station has many advantages, such as simple configuration, easy operation, sufficient
oil supply, high efficiency and stable work property.
2 Technical parameter
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Max working pressure: 2900 psi (20MPa)
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Rated flow rate: 2~42 gpm
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Oil tank volume: 166 gallon
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Type of the oil pump and motor: 160SCY-YBZ-Y250M-6-37KW
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Overall dimension: 5.6×4.1×4 ft
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Weight: 2200 lb
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Special requirement of power supply:□440V，60Hz□480V，50Hz□660V，60Hz □
3 Configuration and working principle
The schematic diagram of this hydraulic power station is
shown in Fig.1.
Configuration is shown in Fig.2. The oil
pump is a manual variable plunger pump, the oil supply of
pump is variable,using the adjust wheel to adjust the out flow of
the plunger pump (see Fig.3 and Table 1).The standard motor of
the hydraulic power station is Y250M-6-37KW, 380V，50Hz.
Fig.1
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0
Fig.2
1. JB978-77 pipe joint
2. combination washer22
3.outlet
4.inlet
5.oil tank
6.JB966 pipe joint 14/M18×1.5
7. O ring 16×2.4
8.connection board
9. O ring 20×2.4
10.gauge 0－25MPa
11.gauge joint
12.overflow valve YF-B32H3-S
13. non-return valve
14. pipe joint
15. O ring 42×3.1
16. combination washer 42
17. O ring 65×3.1
18.filter PZU-160×20L-Y
19. air filter EF6-80
20. Temperature meter YWZ-250T
21.globe valve DN50-10
22.nut M60×2
23. O ring 55×3.5
24. elbow piece 50
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Adjust whe el
Graduation
Fig.3
Table 1
Graduation of the pluger pump
Actual output flow
L/min
gpm
10
138
36
9
124
33
8
110
29
7
97
26
6
83
22
5
69
18
4
55
15
3
41
11
2
28
7
1
14
4
□Dimension of oil inlet and outlet see Fig.4,the standard is M42×2.
□Dimension of oil inlet and outlet：inlet：
outlet：
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oil in le t
oil outlet
Fig.4
4 Usage, maintenance and attention items
4.1 Adjust the pressure of oil system
Adjusting the overflow valve 12 (in Fig.2) to min pressure station,start the motor, adjusting the overflow
valve slowly,when the pressure shown in the gauge 10 meet the pressure we needed, then screw down the locknut
of the overflow valve .The adjusting range of the overflow valve is 5~20 MPa, the preestablishing pressure in our
company is 10 MPa.
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If the manual is changed or revised later, we have no obligation to notify any person.
If the pictures vary from the practicality,please accept the practicality.
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4.2 Maintenance and attention items
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Check carefully the appearance of the
hydraulic power station for integrity and
damage, check outer parts and accessories
and screw on tightly connections loosened
during handling and transportation, if any.
Choose a spot within l0 meters of the
equipment to mount the unit. The spot
should be well ventilated.
YB-N46 wear-resistant hydraulic oil are
The lo wer-limit mark
recommended for use in the oil tank. When
the ambient temperature is below -25℃,
YC-N46 low-freezing hydraulic oil may be
a choice. For a short period of time
transparent oils of the same grade may be
Fig.5
used as a substitute. The temperature of the
oil during working is 15～65℃,the correct action must be taken when temperature of oil in the tank is too
low or high.
 Generally, change the hydraulic oil
once a year. Protection measures
Windo w for wash ing
should be taken to prevent moisture or
impurities from entering into the oil.
 When pouring oil into the tank, the
lower-limit mark of oil level must be
reached (see Fig.5). Check the oil level
in the tank regularly and replenish if
necessary to reach the upper-limit
mark.
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Clean the oil tank once a year, the
window for washing see Fig.6.
Fig.6
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Don’t run o ver 2900 psi (20MPa), or the power un it will be damaged !
5, Ordinary trouble and troubleshooting
Ordinary trouble
Main cause
Remedy
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Insufficient
pressure
1, the adjusting value of overflow valve
1, adjusting the overflow valve.
is lower.
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2, something is wrong with the overflow
2,.repair the overflow valve.
valve.
3, the pressure gauge is aging so as to not
3, inspection and replacing pressure
correctly recording the value.
gauge.
4, something is wrong in the plunger
4, dismantle the pump and clean every
pump.
moving part. Then reassembly the worn
parts.
1, somewhere of the oil pipe is leaky so
1, fastening adapter, replacing the
as to cause insufficient oil supply.
sealing piece.
2, shortage of the oil
Insufficient
3, . something is dirty between the
2, supply the oil.
oil supply
distribution oil plate and pump body or
3, dismantle the pump and clean every
the retaining pin of the distribution plate
moving parts, then reassembly the parts.
is not fixed well, as a result the
distribution plate is not very well fit.
6 Carry, store , opening the box and after-sales service
6.1 Carry
□Handle hydraulic power station steadily and smoothly, keep from getting damp, upside down or damaged.
□Keep the hydraulic power station balanced and horizontal not to swing so as to avoid bumping or damaging.
6.2 Store
□Store in places free of sunshine, rain and moist, with excellent ventilation and ambient temperature below
45℃.
□Don’t leave the hydraulic power station on muddy ground or in the open air
□Protect the oil entrance in storage to prevent dirt or dust.
□Valid storage time for new hydraulic power station is one year since delivery. Replace part or all of the sealing
pieces and hoses after expiration.
6.3 Opening the box
□After opening the box, check the appearance of the hydraulic power station, check goods according to the
packing list.
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