YAMADA SKR-110A50 Instruction

Doc. No. OSA 010U-02

INSTRUCTION

GREASE LUBRICATOR

SKR- 110A50 MODEL No.880631

WARNING

Prior to operating this pump, be sure to read this operation manual for safety. After reading the manual, please
keep it on hand for future reference.

- Preface

Thank you for purchasing a Yamada Pump. This machine is a portable type lubricator that is indispensable for grease
lubrication for machines and vehicles. This lubricator cannot be used for oil lubrication.
The applicable grease is limited to a type of NLGI No.2 or less in the normal operating conditions.

- If the lubricator is used in an extremely cold or low-temperature environment, the discharge volume will be
remarkably lowered.

- Silicone grease is not applicable.

- For Safe Operation

This manual describes the items that are important for the user to operate this product safely, correctly, and efficiently.
Before operating this product, read this manual thoroughly, in particular, “Warnings and Cautions” at the beginning of
this manual.

- Warnings and Cautions

For safe use of this product, be sure to note the following: In this document, warnings and cautions are indicated by
symbols. These symbols are for those who will operate this product and for those who will be nearby, for safe
operation and for prevention of personal injury and property damage. The following warning and caution symbols
have the meanings described below. Be sure to remember their meanings.

WARNING :

This indicates the existence of potential hazard which, if not avoided, will
result in death or serious injury.

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CAUTION :

Furthermore, to indicate the type of danger and damage, the following symbols are also used along with those
mentioned above:

This symbol indicates a DON'T, and will be accompanied by an explanation on something you must not
do.

This symbol indicates a DO, and will be accompanied by instructions on something you must do in a
certain situation.

This indicates the existence of potential hazard which, if not avoided, may
result in bodily injury or in physical damage.

- Precautions on Use

The following warnings and cautions are very important. Be sure to observe them.

WARNING

- If the material handled come into direct contact with or is splashed over your body, it could be harmful
to the eye or skin. Be sure to check the material handled, and when you work with it, put on a protective
gear (protective mask, glasses, safety gloves, etc.) depending on the degree of danger.

- Some types of grease may contain a carcinogenic material. Read the cautions for handling grease
given by the grease maker carefully when handling the grease.

- Gasoline is a high-volatility material. Do not use gasoline to clean the pump in any case, otherwise it
may cause ignition or explosion.

CAUTION

- Restriction on handling
The operator or administrator of this pump should not allow those who have no knowledge of the pump
to operate it.

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- The maximum supply air pressure of this machine is 0.7 MPa. Using the machine with a supply air
pressure exceeding this limit will lead to death or bodily injury or physical damage due to machine
breakage. Be sure to adjust the supply air pressure below 0.7 MPa.

- After the end of daily work, at night, and on holidays, be sure to shut off the supply air to this machine to
release the gun so as to bleed the internal pressure.
Any secondary accident such as pollution of installation, due to pump operation driven by worn-away
packing or hose without shutting off the supply air, shall be attributable to the user’s responsibility.

- Do not operate the gun lever with the discharge port facing to another person during machine operation
in any case. A direct hit against the human body may result in an accident such as skin damage.

- During machine operation or after completion of movement, be sure to lock the caster brake for locking.

- When replacing any part at maintenance, be sure to stop the air supply to the machine to avoid having
fingers nipped because of a malfunction.

Table of Contents

- Preface

- For Safe Operation

- Warnings and Cautions

- Precautions on Use

1. Names of Parts

1.1 Names of Parts .................................................................................................................... 1

1.2 Contents of Package ........................................................................................................... 1

2. Principles of Operation ......................................................................................................... 2

3. Preparations before Operation

3.1 Setting a Pail ....................................................................................................................... 3

3.2 Assembling the Equipment .................................................................................................. 3

3.3 Operating the Equipment ..................................................................................................... 4

4. How to Operate the Machine ............................................................................................... 5

5. Maintenance and Inspection

5.1 Troubleshooting and Corrective Measures .......................................................................... 6

5.2 Maintenance and Inspection ................................................................................................ 7

5.3 Disassembly and Assembly ................................................................................................. 8

5.3.1 Separating the air motor from the lower pump ................................................................ 8

5.3.2 Disassembling and inspecting the lower pump ............................................................... 9

6. Parts Disassembly Drawing and Parts List

6.1 SKR-110A50 (880631) ........................................................................................................ 10

6.2 Grease Gun (851985) .......................................................................................................... 10

6.3 Pump Ass’y (851779) .......................................................................................................... 11

7. Pump Specifications

7.1 Engineering Data ................................................................................................................. 12

7.2 Performance Curve ............................................................................................................ 12

7.3 Demensions ......................................................................................................................... 12

8. Limited Warranty .................................................................................................................... 13

1. Names of Parts

1.1 Names of Parts

1.2 Contents of Package

The main devices and the accessories are packed in different cases.
Open the top part of the corrugated fiberboard case and check if the devices and cabinet are not damaged and if
accessories are all contained in the package.

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2. Principles of Operation

The Yamada Air-powered Pump is a reciprocating type that is driven by
compressed air. The pump consists of an air motor to drive the pump and a
lower pump to draw up the material as shown in the figure at right.
When compressed air is supplied from the compressor to the air motor, the
air piston starts its up/down motion by the function of the air switching
mechanism built in it.
This motion is transmitted to the piston of the lower pump by the connecting
rod that connects between the air piston of the air motor and the piston of the
lower pump, thereby giving the up/down motion to it.
When the up/down reciprocating motion of the piston of the lower pump is
performed, the material is sucked into the lower pump and fed out from the
discharge port by pressure.

Connecting
rod

Air

Motor

Lower pump

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