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Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

HK、HKF 和HKL型结构紧凑式泵站

此种仅需接电的结构紧凑式泵站以附加集成冷却风扇见长， 为此它可以用于连续

运行的场合。 另外还可提供外加风扇结构形式的泵站（HKF 型），该泵站的冷

却功率比传统泵站提高了25%。 该泵站可以配置成单回路泵（径向柱塞泵或齿

轮泵）、双回路泵（径向柱塞泵和/或齿轮泵）或者三回路泵（仅径向柱塞泵）形

式供货。 其中，单回路泵和双回路泵系统可提供卧式泵站（HKL 型）。 通过组

装不同的连接块和阀组，就可以实现结构极为紧凑的液压控制系统。 这种结构紧

凑式泵站可以广泛地应用于各种机床（例如：车床与铣床）、工装夹具或通用机

械。 而且此种泵站一般不需要外置冷却器。

特征及优点：

■ 适用于间歇工作制S6 和长时间工作制S1

■ 附加外部风扇用于佳功率利用

■3种规格，使用范围广

■ 使用寿命长和可靠性高，

由于使用径向柱塞泵

■ 机油填充量少，废物处理成本低，液压油成本低（环保）

■ 模块化系统的阀与附件方案一致

■ 单回路至三回路泵可用

使用范围：

■ 车床和旋转加工中心上

的车床卡盘、车床尾座和中心架夹紧压力供给系统

■ 机床和设备上的手装系统和夹紧系统

■ 焊接机、机器人

■ 长时间试验试验台构造

■ 扭力扳手

元件种类： 带集成电动机的径向柱塞泵和/或齿轮泵

（三相交流电结构形式）

结构形式： 连续和间歇工作制浸油式结构紧凑泵站

（S1 / S6 运行）

pmax： 径向柱塞泵700 bar （高压）

齿轮泵180 bar （低压）

Qmax： 径向柱塞泵（高压）

约13 l/min (Vg = 9.15 cm3

/U)

齿轮泵（低压）

24 l/min (Vg = 17.0 cm3

/U)

V有效max：

HK 34 8 LST - H 3.6 3 x 400V 50Hz

电动机电压3 ~ 230/400V ∆! 50 Hz, 3 ~ 265/460V ∆! 60 Hz

1 ~ 230V 50 Hz, 1 ~ 115V 60 Hz （单相交流电动机）Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

泵结构形式 单回路泵

■ 径向柱塞泵H，齿轮泵Z，内齿轮泵IZ

带用于压力口P1 和P3 的连接插座的双回路泵

■ 组合：

■ 径向柱塞泵- 径向柱塞泵(HH)

■ 径向柱塞泵- 齿轮泵(HZ)

带分离式插座的双回路泵

■ 径向柱塞泵H 或齿轮泵Z

附加机能 ■ 温度和水平开关

■ 附加的泄漏油接口（HK 4.L 型）

油箱尺寸HK 型： 有效容积V有效0.85l 至15.4l，HKL 型： 有效容积V有效1.7l 至9.1l

■ 各种不同的注油口

基型，规格HK 型，规格2 至4，HKF 型（带外部风扇用于增大冷却功率），规格4

HKL 型（三相交流电动机）和HKLW 型（单相交流电动机），规格3

其它结构形式：

■ 带规模大的电动机结构紧凑式泵站

2 | www.hawe.de | 2011

机能

单回路泵 双回路泵 三回路泵

（径向柱塞泵

或齿轮泵）

（径向柱塞泵/径向柱塞泵，

齿轮泵/齿轮泵，或径向柱塞泵/齿轮泵）

（仅径向柱塞泵）

集中的油泵接口 分开的油泵接口 分开的油泵接口Brief operating manual

For hydraulic power packs type HKL and HKLW

B 7600-3L

Operating manual

July 2009-00

HAWE HYDRAULIK SE

STREITFELDSTR. 25 • 81673 MÜNCHEN

1.1

© 2009 by HAWE Hydraulik

1. Installation notes

It is important that you analyze all aspects of your

application and review all information concerning this

product (see also D 7600-3L) before you select or use any

product or system. Due to the variety of operating conditions

and applications for these products, the user, through his

own analysis and testing, is solely responsible for making the

final selection of the products and assuring that all functionality and safety requirements of his

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

application are met.

Installation, adjustments, maintenances, and repairs have to be

performed by authorized, trained, and instructed staff only.

The use of this product beyond the specified performance limits, with not approved fluids, and/or when non-genuine spare

parts installed will lead to an expiration of the guarantee.

The hydraulic power pack can become hot during operation

→Risk of injury!

The following guidelines and standards have to be taken

additionally into account:

VDI 3027  “Initial operation and maintenance of hydraulic

systems”

DIN 24346 “Hydraulic systems”

ISO 4413  “Hydraulic fluid power - General rules relating to

systems”

D 5488/1 Pressure fluids - notes for selection

B 5488  General operating manual for the assembly,

initial operation and maintenance of hydraulic

components and systems

Declaration of conformity

Letter of conformity acc. to EC directive 2006/95/EG 

„Electrical equipment designed for use within certain voltage limits“

The compact power packs are manufactured in conformity with EN 60 034 (IEC 34 – VDE 0530) and VDE 0110.

Notes: Conforming EC directive machinery safety 89/392 EC, appendix II, section B:

The components are produced conforming the harmonized standards EN 982, EN 983, EN 292 and EN 60204-1. The

setting in operation is forbidden until it is verified that the machine where this component is utilized fulfils the requirements

in safety of Machinery Directive 89/392/EEC incl. appendix.

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

2. Coding

Type te for hydraulic power pack

Single circuit pumps Dual circuit pumps

with 1+phase motor

Complete type coding

Commission number

Production date: Week/Year

Geometric delivery flow of the pump, flow Q (l/min) = Vg

·n / 1000

Max. perm. operating pressure

Nom. voltage and mains frequency according to circuitry (!, /, ()

Voltage ranges (!, /, (), where the rated performance is available:

- 50 Hz: ±10% (IEC 38)

- 60 Hz: ±5%

Nom. power according to mains frequency (50 Hz, 60 Hz)

The actual power consumption can be higher than the nom. power!

Nom. current

The actual current consumption can be higher than the nom. current!

Nom. speed

Operating capacitor

Not scope of supply!

Tank capacity

Type coding

Order example:

Single circuit pump

HKL 34 DT /1 - H 7,7 -  A1/150 3 x 400/230 V !/ 50 Hz

Dual circuit pump

HKLW 32 8T  /1C- HZ 0,88/5,2 - NA31-A700R/100/120-WGZ4-1R-WG110 -1 x 110 V 60 Hz - Fluid drain hose G 1/4 x 300

Connection block depending on pump version

(if required in combination with directional valve bank, see sect. 5.1)

Motor voltage Fluid drain hose

Pump version:

H ...  - Single circuit pump (radial piston pump)

Z ...  - Single circuit pump (gear pump)

HH ... / ... - Dual circuit pump (radial piston pump - radial piston pump)

DHH ... - Dual circuit pump (radial piston pump - radial piston pump)

HZ ... / ... - Dual circuit pump (radial piston pump - gear pump)

ZZ ... / ... - Dual circuit pump (gear pump - gear pump)

Z ... - H ... - Dual circuit pump with separate connection pedestals

(radial piston pump - gear pump)

Fan shroud:

n Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

o coding - Sheet steel version

Position of the connection pedestal

/1 Standard

/2 Installation position, rotated by 90° to the left (only with version H and Z)

/3 Installation position, rotated by 90° to the right (only with version H and Z)

Additional functions (combinations are also possible)

no coding No additional functions (only type HKL)

T Temperature switch (standard with type HKLW)

D  Float switch (NC-contact)

S Float switch (NO-contact)

Basic types, motor version

HKL 34 3+phase motor, nom. power 1.5 kW

HKLW 34 1+phase motor, nom. power 1.5 kW

HKL 32 3+phase motor, nom. power 1.5 kW

HKLW 32 1+phase motor, nom. power 1.5 kW

HKL 38 3+phase motor, nom. power 2.2 kW

HKL 38 V 3+phase motor, nom. power 2.2 kW with moulded moto

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

3. Further characteristic data 

3.1 General

Nomenclature Constant delivery pump

Design Valve controlled radial piston pump or gear pump

Direction of rotation Radial piston pump -- Any

Gear pump - Counter clock-wise, as indicated by an arrow on the fan shroud. It is therefore necessary

to check the rotation direction of the motor. The fan wheel has to rotate counter clockwise after briefly

starting the motor when looking through the perforation of the fan shroud.

Speed range Radial piston pump H: 200 ... 3500 min-1

Gear pump Z 1.1 ... Z 3,5: 500 ... 4500 min-1

Z 4.5 ... Z 5.2: 500 ... 3200 min-1

Z 6.4 ... Z 6,9: 500 ... 2400 min-1

Z 8.2 ... Z 8.8: 500 ... 1800 min-1

Z 11.3: 500 ... 1500 min-1

Z 6.5 ... Z 21: 500 ... 3500 min-1

Installed position Only horizontal

Mounting via four supports with holes #9 mm, see also sect. 4.1

Mass (weight) Basic type H Z HZ, HH, DHH, Z - H

(without fluid) HKL 3

HKLW 3.

HKL 3.7

HKLW 3.7

HKL 3.8

HKLW 3.8

HKL 3.9

HKLW 3.9

HKL 3.79

HKLW 3.79

HKL 3.89

HKLW 3.89

Pipe connection only via directly mounted connection blocks, see selection table in section 5.1. For the connection hole

pattern of the basic pump, see section 4.3

Pressure Delivery side (outlet ports P, P1 und P3) depending on pump design and delivery flow, see sect. 2

Suction side (inside the tank): ambient pressure. Not suitable for charging.

Start-up against pressure Versions with 3+phase motor will start-up against pressure pmax

!

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Whereas versions with 1+phase motor will start-up only against slight pressure!

3.2 Hydraulic

Filling and usable volume

Pressure fluid Hydraulic oil conforming DIN 51 524 part 1 to 3; ISO VG 10 to 68 conforming DIN 51 519

Opt. operation range: Radial piston pump H: 10 ... 500 mm2

/s

Gear pump Z: 20 ... 100 mm2

/s

Viscosity range: min. approx. 4; max. approx. 800 mm2

/s

Also suitable are biologically degradable pressure fluids type HEES (Synth. Ester) at service temperatures up to approx. +70°C. Electrically hazardous: Any fluid types containing water must not be used

(short-cut). i.e. fluids type HEPG and HETG are not suitable!

Temperature Ambient: approx. -40 ... +80°C; Fluid: -25 ... +80°C. Note the viscosity range !

Permissible temperature during start: -40°C (observe start-viscosity!), as long as the service temperature is at least 20K higher for the following operation. Biologically degradable pressure fluids: Observe

manufacturer’s specifications. By consideration of the compatibility with seal material not over +70°C.

For mass (weight) of the connection

blocks an d valve banks, see

the respective pamphlets (see listing in sect. 5.1)

Tank size Filling volume Usable filling volume

Coding Vfilling

Vusable

(coding H, Z) Vusable

(coding HZ, HH, DHH, Z - H)

-- 3.7 l 1.7 l 1.7 l

7 4.1 l 2.1 l 1.7 l

8 5.5 l 2.6 l 1.7 l

9 11.2 8.2 l 8.2 l

79 11.6 l 8.6 l 8.2 l

89 13 l 9.1 l 8.2 l

3.3 Electrical data

The figures below apply to radial piston as well as to gear pumps

The drive motor and pump form a closed, not separable unit, see description section 1.

Connection & Version with terminal box,

WAGO CAGE CLAMP®S, cable 1.5 mm2

... 3 mm2

(Cable gland M20x1.5 is customer furnished)

& Version with central plug (Co. HARTING), cable 1.5 mm2

& Version with terminal box and blade type terminals, blade type terminals (female) 6.3 (Co. AMP)

(cable gland M20x1.5 is customer furnished)

Protection class IP 54 conf. IEC 60529, apply to the complete hydraulic power pack (as a Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

reference protection class to

pure electrical machinery)

Safety class VDE 0100 Safety class 1

Insulation Design conf. VDE 0110

& for mains with 4 or 3 conductors L1~L2-L3~PE (3~phase mains) with grounded neutral point up to

500 V AC nom. phase voltage conductor - conductor

& for mains with 4 or 3 conductors L1~L2-L3 (3~phase mains) without grounded neutral point up to

300 V AC nom. phase voltage conductor - conductor

& for 1~phase mains with 2 conductors L-N up to 300 V AC nom. voltage.

Temperature switch

Coding T

Technical data:

Bimetallic switch

HKLW = winding protective switch

HKL = temperature switch, mounted separately

Signaling takes ce at 80°C * 5K (Kelvin)

Max. voltage 250 V  50/60 Hz

Nom. current (cos ϕ~0,6) 1.6 A

Max. current at 24 V (cos ϕ= 1) 1.5 A

Connection – in the terminal box / plug Co. HARTING

Technical data:

Switching performance DC/AC 60 W/ 60 VA

Max. current DC/AC 0.8 A (cos ϕ=1)

Max. voltage 230 V  50/60 Hz

A protective circuitry is mandatory at inductive loads!

Float switch

Coding D, S

}

HKL 34, HKL 38 3 x 400/230V 50 Hz !/

Operating voltage 3 x 460/265V 60 Hz !/

Motor current IM A( ) 400 V 50 Hz

4( 60 V 60 Hz)

Delvi ery f ol w (tendency)

Hydraulic work (pVg

) (bar cm3

)

HKL 32 3 x 400/230V 50 Hz !/

Operating voltage 3 x 460/265V 60 Hz !/

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

HKLW 32 1 x 230V 50 Hz

Operating voltage 1 x 110V 60 Hz

HKLW 34 1 x 230V 50 Hz

Operating voltage 1 x 110V 60 Hz

Motor current IM A( ) 400 V 50 Hz

4( 60 V 60 Hz)

Motor current IM A( ) 110 V 60 Hz

Motor current IM A( ) 110 V 60 Hz

Delvi ery f ol w (tendency)

Delvi ery f ol w (tendency)

Delvi ery f ol w (tendency)

Motor current IM A( ) 230 V 50 Hz

Motor current IM A( ) 230V 50Hz

Hydraulic work (pVg

) (bar cm3

)

Hydraulic work (pVg

) (bar cm3

) Hydraulic work (pVg

) (bar cm3

)

Current consumption

D S

(NC-contact) (NO-contact)4.2 Basic pump type HKL and HKLW

Type HKL 3., HKL 3.8

Type HKL W 3., HKLW 3.8

Connection pedestal

at HKL.../1

Terminal box

can be mounted off-set 3x90°

M8x12

Silentbloc

#40x30 / M8 (65 Shore)

Cable gland

M20 x 1,5

Oil level gauge

Filler neck

Fluid drain G 1/4 (BSPP)

Fluid drain hose, see page 7

Connection pedestal

at HKL.../1

(coding 8)

(coding 7) Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

(coding 7)

(coding 8)

All dimensions are in mm and are subject to change

without notice!

B

B

A

A

Connection

pedestal at

HKL.../3

at

Connection HKL.../1-Z-H

pedestal at

HKL.../2

4. Unit dimensions

4.1 Mounting, hole pattern

Electrical connection

M8 or # 9

Recommended fastening

For illustration

Coding P1, P2, FP1, and FP2

see page 7

B 7600-3L  page 6

HKL 3.

HKLW 3.

HKL 3.7

HKLW 3.7

HKL 3.8

HKLW 3.8

HKL 3.9

HKLW 3.9

198.5

a

284

316.5

259

HKL 3.79

HKLW 3.79

223.5

HKL 3.89

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

HKLW 3.89

377B 7600-3L  page 7

Type HKL 3.9, HKL 3.89

Type HKL W 3.9, HKLW 3.89

For illustration

Coding P1, P2, FP1, and FP2

see above

A B

B A

(coding 89)

(coding 79)

(coding 79)

(coding 89)

Coding P1, FP1 Coding P2, FP2

Continuation  4.2 Basic pump type HKL and HKLW

Fluid drain hose G 1/4 x 300

G 1/4 x 500

Fluid drain hose G 1/4 W x 300

G 1/4 W x 500

G = BSPPB 7600-3L  page 8

Electrical

Terminal box (without coding)

WAGO CAGE CLAMP®S, cable 1.5 mm2

... 3 mm2

3+phase motor 1+phase motor

Single circuit pump

Centering pin

Centering pin

M6, 20 deep

M8, 20 deep

Dual circuit pump with common

connection pedestal.

For missing dimensions, see above!

Dual circuit pump

with a separate

connection

pedestal

Sealing of ports:

P and P1 = Kantseal 6.07x1.68 NBR 90 Sh

P3 and R = 8x2 NBR 90 Sh

Ports at a customer furnished connection block

4.3 Electrical and hydraulical connection

Hydraulical Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

CB - Operating capacitor is not

scope of delivery

D (NC-contact) S (NO-contact) TB 7600-3L  page 9

Coding D, S Coding DT, ST

Coding F

Blade type terminals, blade type terminals (female) 6.3 AMP

Coding T Coding D - T, S - T

3+phase motor  ! 3+phase motor  / 1+phase motor

Electrical connection at the user (via the plug)

CB - Operating

capacitor is not

scope of delivery

CB - Operating capacitor is not scope

of delivery

Coding P1, P2, FP1, FP2

Central plug (Co. HARTING) HAN 10 E

3+phase motor 1+phase motor

D S T

(NC-contact) (NO-contact)

D (NC-contact) S (NO-contact)B 7600-3L  page 10

5. Appendix

5.1 Notes regarding selection

Procedure for selection and system lay-out of compact power packs with directly mounted valves is detailed in D 7600-3L.

Technical description of the connection blocks

A connection block is mandatory for the hydraulic connection of the hydraulic power pack

Type

A, AL, AM, AK,

AS, AV, AP

AN, AL, NA,

C30, SS, VV

AX

B

C

Description

For single circuit pumps

with pressure limiting valve and the possibility for direct mounting of directional valve banks

Optional: pressure resistant filter or return filter, idle circulation valve, accumulator charging

valve, prop. pressure limiting valve

For dual circuit pumps

with pressure limiting valve and where directional valve banks can be directly mounted in

some cases Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

Optional: accumulator charging valve, two stage valve, idle circulation valve

For single circuit pumps

with pressure limiting valve (type approved) and the possibility for direct mounting of directional valve banks

for use at accumulator charged systems

Optional: pressure resistant filter or return filter, idle circulation valve

For single circuit pumps

for actuating single acting cylinders with pressure limiting valve and drain valve

Optional: throttle valve

For single circuit pumps

with ports P and R for direct piping

Pamphlet

D 6905 A/1

D 6905 A/1

D 6905 TÜV

D 6905 B

D 6905 C

Technical description of the directional valve banks

The direct mounting of directional valves to the connection blocks type A enables creation of compact hydraulic units without

additional piping.

Type

VB

BWN, BWH

BVZP

SWR, SWS

BA

NBVP

NSWP

NSMD

NZP

Description

Directional seated valves up to 700 bar

Directional seated valves up to 450 bar

Directional seated valves up to 450 bar

Directional spool valves up to 315 bar

Valve bank for the combination of different directional valves with connection hole pattern NG

6 acc. to DIN 24 340-A6

Directional seated valves

Directional spool valves

Clamping modules

(Directional spool valve with pressure reducing valve and  feedback signal)

Intermediate te

with connection hole pattern Ng 6 acc. to DIN 24 340-A6

Pamphlet

D 7302

D 7470 B/1

D 7785 B

D 7451, D 7951

D 7788

D 7765 N

D 7451 N

D 7787

D 7788 Z

5.2 Assembly and installation notes

Attention: The compact hydraulic power pack has to be installed and connected by a qualified technician, who is familiar with and

works according to the generally accepted engineering standards and the latest legal regulations and standards.

The following guidelines and standards have to be taken into account:

- VDI 3027 “Initial operation and maintenance of hydraulic systems”

- DIN 24346 “Hydraulic systems”

- ISO 4413 “Hydraulic fluid power -- General rules relating to systems”

- D 5488/1 Pressure fluids - notes for selection

- B 5488 General operating manual for the assembly, initial operation and maintenance of hydraulic components and systemsB

Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

& a) Identification

see type te and discription in section 2

b) Installation and mounting

Installation

The hydraulic power pack incl. the solenoids of the directional valves can become hot during operation →Risk of injury!

Care has to be taken that fresh air can be drawn in and the warm air can escape. 

Modifications of any kind (mechanical, welding or soldering works) must not be performed.

& Installed position only horizontally

& For dimensions, see sect. 4.2

& Mass (weight) for the basic power pack without valve assembly and fluid

a & Mounting: Mounting hole pattern, see section 4.1

c) Electrical connection and setting of the protective motor switch

& For connection of the electric motor, see sect. 4.3

& For connection of the float and fluid level switch, see sect. 4.3

Note: The temperature switch will trigger at a fluid temperature of approx. 95°C.

Note: The signal has to be delayed sufficiently (time lag relay) if the lay-out of the system features an operation cycle where

the pump is emptied below the min. level and replenished by the reflow from the consumer within one cycle.

& Adjustment of the protective motor switch

- S1-operation (pressure <= p1

) Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

The protective motor switch should be set for the corresponding current, required to achieve the adjusted pressure of the

pressure limiting valve (see IM-(pV

)calc.- curve sect. 3.3), however not higher than the nom. current IN. This motor protection

covers only a possible mechanical blockade of the motor.

- S6-operation (pressure <= pmax

)

In most cases it is sufficient, to set the response current to approx. (0.85...0.9) of IN. This makes sure that on one hand the

bimetallic switch does not trigger too early during normal operation but on the other hand the oil temperature doesn&t rise

too high due to a prolonged response time after the pressure limiting valve is in action.

- Test the setting of the motor protective switch during a test run. 

Temperature switches, float switches and pressure switches are further safety measures against malfunctions.

& Selection of the proper operation capacitor with type HKLW A capacitor is mandatory for the version with 1+phase motor.

The recommendations in sect. 3.3 ensure that the max. pressure rating specified are achieved.  The electric loss can be minimized by utilizing a smaller capacitor (- 30%) as long as only 75% of the specified max. hydraulic work (pVg

) is employed

Note: The capacitor is not scope of delivery. 

Condenser choice

Motor voltage Reference voltage

1 x 230V 50 Hz

1 x 220V 60 Hz

1 x 110V 60 Hz

1 x 115V 50 Hz

400 V AC

230 V AC

d) Notes to ensure EMC (Electromagnetic compatibility)

No impermissible spikes are emitted (EN 60034-1 sect. 19) when hydraulic power packs (inductive motor acc. to EN 60034-1

sect. 12.1.2.1) are connected to a system (e.g. power supply acc. to EN 60034-1 sect. 6). Tests regarding the conformity with

EN 60034-1 sect. 12.1.2.1 and/or VDE 0530-1 are not required. Electro-magnetic fields may be generated during switching the

motor ON/OFF. This effect can be minimized by means of a filter e.g. type 23140, 3 • 400 V AC 4 kW 50-60 Hz

(Co. Murr-Elektronik, D-71570 Oppenweiler

) Putting into operation

& Check, whether the compact hydraulic power pack is professionally connected.

- Electrically: Power supply, controls

- Hydraulically: Piping, hoses, cylinders, motors

- Mechanically: Fastening at the machine, the frame, and the rack

& A protective motor switch should be employed to safeguard the electric motor. For current setting, see sect. 5.2 c

& The pressure fluid to top-up the power pack should have passed the system filter or be fed via a filter unit always.

Only mineral oils conforming DIN 51524 part 1 to 3, type HL or HLP, with a viscosity of ISO VG 10 to 68 acc. to DIN 51519 are

suited for use with this power pack. The water content must not exceed 0.1% (Danger of short-cut!)

Also suitable are biologically degradable pressure fluids type HEES (Synth. Ester) at service temperatures up to approx. +70°C.

Electrically hazardous: Any fluid types containing water must not be used (short-cut) i.e. fluids type HEPG and HETG are not

suitable! The compact hydraulic power pack has to be topped-up to the max. marking of the fluid level gauge/dip-stick.

& Filling and usable volume

•Initial operation and bleeding

The pump cylinders will be bled automatically if the pump is switched on and off several times while the connected directional

valves are switched into a switching position where idle circulation is provided, if possible with your circuitry (see circuit diagram).

Another way is to install a pipe fitting with a short piece of pipe and prolonged by a translucent tube. The other end of the tube

should be put into the filler neck (breather removed), held firmly and sealed with a non-fluffing cloth. Now switch on the pump

and let it run until no more bubbles are visible. Next after the pump cylinders are bled any air dragged into the system should be

removed by opening the bleeder screws at the consumers (if provided) until no more bubble are detected or by operating all

functions of the circuitry without load until all cylinders, motors, etc. move steadily and without any hesitation.

•Pressure limitation and pressure reducing valves

Do not a make any changes of the pressure setting without simultaneously checking the pressure with a pressure gauge!

•Directional valves

Solenoid valves apparent are to be connected to the controls according to the hydraulic wiring diagram and functional diagram.

•Accumulator charged systems

Accumulators have to be filled with appropriate equipment according to the pressure specifications of the hydraulic wiring

diagram. The respective operating manuals have to be taken into account.

•Run-down

A certain pressure rise will occur due to pump motor run-down, if the pump is directly connected to a hydraulic cylinder via a

pipe, such as e.g. in the typical connection pattern for clamping equipment (connection block B...) and if the power unit is switched

off by a pressure switch as soon as a pre-selected pressure is achieved. The extent of this additional pressure rise depends on

the pre-selected pressure, the volume of the connected consumers and the pump delivery rate. If such pressure rises are

undesired, it will be necessary to reset the pressure limiting valve to match the shut-off point of the pressure switch. The result

will be that all excess delivery of the pump during run-down will be conducted to the tank via the pressure limiting valve.

Procedure for matching is as follows:

1. Fully open the pressure limiting valve.

2. Adjusting the pressure switch on highest value (turning the adjustment screw clockwise up to the stop).

3. Start the pump (pressure gauge and all consumers connected) and turn up the pressure limiting valve until the pressure gauge

shows the desired final operation pressure.

4. Turn back the pressure switch until the pump is switched off at the desired pressure (see point 3.).

5. Lock pressure switch and pressure limiting valve in position Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站

.

The effect of excessive run-down pressure may also be minimized by utilizing an accumulator or providing additional volume in the

consumer line.

If the compact hydraulic power pack is running under full load, i.e. the preset pressure is close to the maximum permissible

pressure, then effectively no run-down will occur, as the pump will stop almost immediately after shut-off.

5.3 Servicing

The hydraulic power packs type MP and the valves being directly mounted onto the hydraulic power pack are almost maintenance

free. Only the fluid level should be checked regularly depending on operation conditions.

The fluid should be exchanged every year as a general rule, but more frequently if tests show aging or contamination.

Attention:

Prior to maintenance and repair works the system has to be:

- depressurized (hydraulic side). This applies especially to systems with hydraulic accumulators

- cut-off or deenergized

Repairs and spare parts

Repairs (recing service items) are possible by competent craftsmen. The motor can&t be repaired or reced by the customer.

Therefore if the motor is defect, the complete pump should be returned to our facilities for an overhaul. There are spare parts lists

available, pls. state your pump type acc. to the type te either on the pump or on the cover te. Hawe代理，哈威代理HK, HKF和HKL型紧凑式液压泵站