Macnaught USA K57-01 Dual Action Air Operated Grease Gun Instruction Manual

: June 17, 2024
: Macnaught USA

Macnaught USA K57-01 Dual Action Air Operated Grease Gun

Macnaught USA K57-01 Dual Action Air Operated Grease
Gun

INSTRUCTION MANUAL

Models: K57-01 (450g BSP, K58-01 (400g BSP), K58-02 (400g NPT)

Specifications:

Models: K57-01 (450g BSP), K58-01 (400g BSP), K58-02 (400g NPT)
Type: Dual Action Air Operated Grease Gun
Grease Compatibility: Up to and including NLGI No.2 consistency

INTRODUCTION

Thank you for purchasing a Macnaught Dual Action Air Operated Grease Gun
The patented Macnaught dual action grease gun is both a single shot and continuous flow grease gun, suitable for bulk, cartridge or grease pump filling with greases up to and including NLGI No.2 consistency.
Please read and retain this instruction sheet to assist you in assembly and maintenance of this product.

SAFETY INFORMATION

CAUTION

Always disconnect the air supply before servicing.
Caution must be observed when either unscrewing the barrel or unscrewing the pull handle from the follower rod as the large follower spring inside the barrel is energised
Macnaught recommends the use of PPE equipment such as safety glasses, protective gloves, safety shoes etc before handling or using this product.
Continual use of this product can potentially cause RSI injury (especially hand or arm injury)
Do not modify or alter this product any way
Never allow any part of the human body come in direct contact with the fuid outlet
Never point the material outlet of the product at yourself or anyone else.
Only physically fit people should be authorised to use this Product
Ensure that any fluid spillage is cleaned up immediately to prevent slipping or injury.
Only use genuine Macnaught replacement parts when repairing this product

SELECT FOLLOWER POSITION

Note:
Refer to Fig 1 for the correct follower position.
How to select Follower position

HOW TO BULK FILL BY SUCTION

Note: Select the correct follower position (see Fig 1).

Lock follower (Fig 2).
Unscrew the barrel from the gun body 2 to 3 turns.
Pull the rod back and retain in barrel slot (Fig.3)
Unscrew the barrel from the gun body.
Release the follower rod from the barrel slot.
Insert the open end of the barrel into the grease, pull the rod back slowly, and at the same time push the barrel into the grease. Pull back the rod until the groove in the rod appears then push the rod into the barrel slot.
Wipe clean and screw the gun body assembly onto the barrel.
Unlock the follower rod from the barrel and apply light pressure on the pull handle (Fig.5), at the same time press the ball in the filler bleeder until grease appears.
Connect the air and pull the trigger several times. If grease does not appear at the coupler repeat step 8.
Unlock the follower rod and push the rod into the barrel.

Note: Should the gun fail to deliver grease refer to the Trouble Shooting Guide on page 3.

Unlock

BULK FILL WITH A MACNAUGHT J3 GREASE PUMP

Note: Select the correct follower position ( Fig 1).

Lock the follower rod (Fig 2).
Slide the filler bleeder valve into the nozzle on the pump
Fill with grease until the groove in the rod is visible at the end of the barrel.
Repeat steps (8), (9), (10) refer (How to bulk Fill).

HOW TO INSTAL A CARTRIDGE

Note: Select the correct follower position (Fig 1).

Repeat steps (1) to (2) above

Pull the follower rod back until the rod groove can be pulled into the barrel slot.
Remove the large end cap from the cartridge.
Slide the large open end first into the barrel.
Remove the small end cap from the cartridge.
Screw the gun body assembly onto the barrel.
Repeat steps (8), (9), (10) as above.

INSTALLATION

Use P.T.F.E. tape while connecting the thread joints
Fill the grease gun with grease and remove the trapped air by unscrewing the filler bleeder valve (5)
Connect the air hose to the inlet valve (4) and start the air supply

OPERATING INSTRUCTIONS

SINGLE SHOT

For single shot operation, press button (7) to move the slider (6) forward as shown in fig 4

CONTINUOUS FLOW

For continuous mode operation, slide the slider (6) back as shown in fig 5

COUPLER REMOVAL

PARTS DIAGRAM

PARTS LIST

Ref No	Part Description	Qty
1	Body	1
2	Grease gun head	1
3	Grease gun barrel	1
4	Inlet valve	1
5	Filler / bleeder valve	1
6	Slider	1
7	Button	1
8	Plunger handle	1
9	Trigger	1
10	Flexible extension	1
11	Grease coupler	1

AVAILABLE SPARE PARTS

Gun head service kit
Barrel assembly (400g)
Barrel assembly (450g)
Follower assembly (400g)
Follower assembly 450g)
Flexible extention (BSP)
Flexible extension (NPT) (-02 model)
Coupler (BSP)
Coupler (NPT) (-02 model)

TROUBLE SHOOTING GUIDE

PROBLEM	CAUSE	SOLUTION
Grease gun pumps little or no grease	Barrel not tight	Tighten barrel
Air pockets in grease	Bleed air from gun
Blocked flexible extension or coupler	Clean or replace extension or coupler
Grease is too tick or too cold	Use thinner grease or warm grease
Excessive grease leaking past follower	Follower is damaged	Replace follower
Damaged head/barrel seal	Replace seal
Gun cycles very slowly	Inadequate lubrication in the air
cylinder chamber	Put a few drops of light oil through the air

inlet valve
If gun does not operate| | Contact closest authorised service centre

SPECIFICATIONS

Output Pressure up to	6,000 PSI (413 bar)
Pressure Ratio	45:1 ratio

Note:
This product should be disposed of according to all applicable local and national government environment regulations and guidelines.

Macnaught Americas

T: +1813 628 5506
E: info@macnaughtusa.com
W: www.macnaughtusa.com

FAQ:

Q: What safety precautions should I take when using this product?

A: Always disconnect the air supply before servicing, use PPE equipment, avoid modifying or altering the product, and ensure only physically fit individuals use it.