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Instruction Manual
Hydraulic Jack
Note: The Owner/Operator must read carefully and understand
all the information presented here before operation.
1
1
Warning in advance………………………………
2 2 Description………………………………………..
2 3 Transporting & Storing…………………………...
3
3.1
Storing……………………………………
3
3.2
Transporting…………………………….
3 4 Installing…………………………………………...
3 5 Operating………………………………………….
4 5.1
Scope of use…………………………….
4
5.2
Method of operating…………………….
4
5.3
Safety standard…………………………
5 6 Maintaining………………………………………..
7 7 Add oil……………………………………………..
8
8
Trouble shooting guide…………………………..
8 9 List of parts………………………………………..
9
10
Constructional detail of part……………………..
10
Contents
2
THANK YOU VERY MUCH FOR CHOOSING OUR HYDRAULIC
JACK. FOR YOUR SAFETY AND CORRECT OPERATION,
PLEASE CAREFULLY READ THE MANUAL BEFORE USE.
NOTE: All of the information reported herein is based on data
available at the time of printing. The factory reserves the right to
modify its own products at any time without notice or incurring in any
sanction. Please verify with the factory for possible updates.
1. WARNING IN ADVANCE
1.1 This jack shall be operated only by those peoples of
profession, with skills, and of educated.
1.2 The use of this jack should follow every important points
described in this manual, otherwise the injure of operators or
damage of articles during use of this jack might be happened
because of negligence.
1.3 Before jack-operating, operator should check and confirm that
the jack is in good state.
1.4 The original manufacturer has no responsibility to the change
of jack's mechanical property caused by maintaining of the
third party without any written permission from manufacturer
except repairing by the manufacturer or his agency.
2. DESCRIPTION
This package includes one jack, one spare parts bag and one this
manual.
3
Model
HM50
HM100
Loading (ton)
5ton
10ton
Lifting height (mm)
205
230
Min.height / tooth (mm)
25
30
Min. height / head (mm)
368
420
Load on the operating
handle (N)
380
400
Net weight (kg)
25
35
Reduced speed
adjustable
adjustable
Temperature of use
-20C°∽+50 C°
-20C°∽+50 C°
Packing size (mm)
360x190x430
380x220x510
3. TRANSPORTING & STORING
3.1 Storing
Keeping the folded jack in dry place.
3.2 Transporting
The operating handle (02) is just for operating the jack. When
transporting the jack, it can not be dropped or be thrown
because it may cause the piston of it damaged, and the pump
of it might be spoiled. Therefore, the jack should be fixed
before transporting to avoid it being shocked by other objects.
4. INSTALLMENT
The installing of jack is very simple .The only thing you should follow
is to insert the operating handle (02) to the socket (04) and screw it
tightly in clockwise direction.
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5. OPERATING
5.1 Scope of use
When use this jack it shall be put on the fixed and solid place, such
as reinforced concrete floor to lift or to move weight articles vertically
or horizontally. In order to lift articles in such limited area of jack,
some auxiliary pad can be placed under the base of it. The tooth
plate (43) of jack should be put on the base, so that it can be folded
inside when compacting the jack.
5.2 Method of operating
5.2.1 Lifting
Put a weight on the tooth plate of jack stable.
Attention: Can not use the front end of tooth plate to lift the weight.
Important point: When lifting the weight by the tooth plate, the
weight should be closed to the head of jack to avoid the pillar (47) of
jack being bent.
Please screw in the unload handle (16) tightly in clockwise direction
before lifting.
Then press and lift the operating handle up and down repeatedly to
pump the pressure to lift the weight. The lifting movement can be
stopped immediately by stopping the lifting operation.
5
5.2.2 Reducing
Please screw out the unload handle slowly in anti-clockwise
direction to reduce the weight step by step. But when screw up the
round unload handle again, the reducing movement can be stopped
instantly.
Note: When the jack is in unload condition, the head of it should be
pressed to reduce its height.
Attention: If the jack is not in the state of maintaining, each part of it
can not be dismantled except the operating handle.
5.3 Safety standard
5.3.1 The lifting of weight is dangerous operation, the appointed
operators should be professional, be trained and be experienced.
5.3.2 Those extra weights can not be added on the lifted weight to
avoid dropping accident happening.
5.3.3 Never exceed the recommended maximum limitation of lifting
weight.
5.3.4 Please keep a safety distance with the lifted weight.
5.3.5 Never use the jack , or being changed or spoilt, or in bad
condition itself.
5.3.6 When lifting the weight by tooth plate, please keep the weight
closing to the head of jack to avoid the pillar of jack being bent.
Please check the drawing again.
5.3.7 Please confirm that each support point of ground should be
solid and stable including floor area and loading etc, then any type
of operating should be handled on the plane surface only.
5.3.8 Please guarantee the lifted weight being stable during the
whole lifting period to avoid it being turn over or being slipped. Each
device shall be fixed before lifting.
5.3.9 Never operating the jack when people standing on the lifting
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objects
brace plate
objects
weight.
5.3.10 Never use the front end of the tooth plate to lift weight. The
tooth plate should be located in its base totally, the pushing point to
the weight should close to the back end of tooth plate as far as
possible.
5.3.11Never screw the adjustable screw (18),under any
circumstance, otherwise a typical accident of jack-dropping might be
happened. These parts (10,11,18,19,20,21) are the device of
overloading protection.
5.3.12Never use the side of jack's head to lift weight. The weight
should be contacted with the black shadow surface of the following
pictures.
5.4.3 Operators should be very careful to use different jacks to lift a
heavy-duty weight. It attention to the shifting of center of gravity
during reducing or lifting the weight. The total lifting weight of all
jacks should be larger than load of lifted weights.
5.4.4 The owner of jack should guarantee all of the stick labels
concerning safety standards keeping on its relative locations, which
should be replaced when they can not be read clearly.
5.4.5 This operation manual can not cover all situations, please
follow each step of it cautiously.
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6.MAINTAINING
6.1 Routine inspecting
6.1.1 Before each operating, please inspect and confirm that:
(1) All of the stoppers and screws of jack have been screwed up
tightly.
(2) The jack's pump without any oil-leaking.
(3) The pump body, tooth plate and its base without any cracking or
form deformation happening-changing.
(4) The pump should be operated normally without loading.
6.1.2 Under the frequent use of the jack, the time of checking shall
be shortened as well, and following checking points shall be
emphasized:
(1) All of the jack stoppers, screws, and nuts should be screwed up
sufficiently and should be adjusted when it necessary.
(2) When the jack is in loading state, please pump it totally until the
release valve opening and without any oil-leaking (but the oil spot on
the surface of pillar or valve stem is in normal).Please release the
pressure of pump and check the pillar to confirm the pillar being flat
and vertical without any shocking and scraping. If any damage of it
being found the pillar should be changed in time.
(3) When the jack is reducing, operator should check whether the
reducing movement is stable or not and it should be wedged (but
some slight vibration is in normal).
(4) Please, carefully check all of the exterior parts of jack including,
Pump body: no deformation, cracking and impacting on it;
Operating handle of pump: no deformation no over space in each
plug, otherwise the old plug shall be replaced by a new one;
Tooth plate: no deformation & cracking;
Base: no deformation &cracking.
8
Items
Symptom
Possible cause
Aliments
1
Jack can not
be pumped
up properly.
The release valve
is not closed.
1.Screw in the unload
handle (16) tightly in
clockwise direction.
2.Loose the screw
(37) to release the air
from the pump, then
screw in it tightly.
2
Jack can not
be released
down at the
top position
The release valve
is not opened
enough.
Screw out the unload
handle (16) in counter
- clockwise direction
3
Jack can not
be pumped
up to its
rated
high-test
position
Oil is not enough.
Screw out the screw
(10),add hydraulic oil.
4
The oil has
leaked,
around the
plunger.
Seals are worn
out.
Replace worn seals
with new seals (8)
and (9) (in the spare
parts bag .
7.ADD OIL
If the jack can not be pumped up to its rated high-test position, you
may have to add hydraulic oil into the oil tank. The hydraulic fluid to
be used must have a quality of ISO VG22 or equivalence. Mixing of
difference fluids is prohibited!
8.TROBLE SHOOTING GUIDE
9
NO
NAME
CODE OF
NUM
NO
NAME
CODE OF
NUM
PART
PART
5t
10t
5t
10t
1
Handle Grip
501
501 1 25
Ball
525
525 3 2
Handle
502
502 1 26
Spring
526
526 2 3
Snap Ring
503
503 6 27
Screw
527
527 2 4
Socket
504
504 1 28
Pump Body
528
528
1
5
Pin
505
505 2 29
O-Ring
529
529
2
6
Plunger
506
506 1 30
Y-Ring
530
530 1 7
Wiper
507
507 1 31
O-Ring
531
531 1 8
Back-Up Ring
508
508 2 32
Valve Stem Bush
532
532 1 9
O-Ring
509
509 2 33
Oil Pipe
533
533
1
10
Screw
510
510 1 34
Retaining Ring
534
534 1 11
Gasket
511
511 3 35
Filter
535
535
1
12
Ball
512
512 1 36
Flexible Bag
536
1036
1
13
O-Ring
513
513 1 37
Screw
537
537
1
14
Release Rod
514
514 1 38
Assemble Of Cylinder
538
1038
1
15
Snap Ring
515
515 1 39
Steel Wire
539
1039
1
16
Unload Handle
516
516 1 40
O-Ring
540
1040
1
17
Screw
517
517 1 41
Retaining Ring
541
1041
2
18
Adjusting Screw
518
518 1 42
Bush
542
1042
2
19
Spring
519
519 1 43
Forked Mounting
543
1043
1
20
Ball Seat
520
520 1 44
Y-Ring
544
1044
1
21
Ball
521
521 1 45
Snap Ring
545
1045
1
22
Linkage
522
522 1 46
Limit Block
546
1046
1
23
Screw
523
523 4 47
Pillar
547
1047
1
24
Pin
524
524 1
9 .LIST OF PARTS
10
10.CONSTRUCTIONAL DETAIL OF PARTY
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