Munix MI CN-90 Instruction Manual Download Page 5

- 5 - 

 
Keep all screws tight. Loose screws can cause personal injury or damage tool. 
Check if there are worn and damaged parts. If any, please replace immediately. 
If tool is used without an in-line oiler: place 5 or 6 drops of air tool oil into the 
air inlet of the tool at the beginning of each workday. 
 

SERVICE AND REPAIR 

All quality tools eventually require servicing of replacement parts due to wear 
from normal use. Some user serviceable components are described in the 
TROUBLESHOOTING Sect ion. All repairs made by local agencies are fully 
guaranteed against defective material and workmanship. We cannot guarantee 
repairs made or attempted by anyone other than these agencies. 
Should you have any questions about your tool , please contact with seller at any 
time. In any communications, please give all information shown on the 
nameplate of your tool (model number, type, serial number, etc.) 

TROUBLESHOOTING 

CAUTION:

 Disconnect tool from air supply before performing 

any service procedure. 

PROBLEM CAUSE 

SOLUTION

Air leaking at trigger 
area 

1. O-ring in trigger valve stem is worn 
and damaged. 
2. O-ring in trigger valve head is worn 
and damaged. 
3. Having foreign matters. 

1.Check/replaceO-ring/lubricate. 
2.Check/replaceO-ring/ lubricate 
3.Clean the tool/lubricate 

Air leaking at the body 
lower portion and nose 

1. Screw is loose at connecting port ion of 
the nose and body. 
2. O-ring is damaged between body and 
nose. 
3. Bumper is damaged. 
4.Having foreign matters at the contacting 
portion of the bumper and body. 

1.Tighten screw/recheck 
2.Check/replaceO-ring/ lubricate 
3. Replace the bumper. 
4. Disassemble and clean 

Air leaking at the upper 
portion and nose body 

1. Screw is loose at the connecting port 
ion of the cylinder and body. 
2. O-ring is damaged. 
3. Gasket is damaged. 

1. Tighten the screw and 
recheck. 
2. Check/replace0-ring/ lubricate 
3. Replace the gasket.

 

 

 

 

 

 

 

 

23. GRIP TOOL FIRMLY TO MAINTAIN 
CONTROL

 

while allowing tool to recoil away 

from work surface as fastener is driven. If safety 
bracket is allowed to contact work surface again 
before trigger is released, an unwanted fastener will 
be fired. 

24. DO NOT DRIVE FASTENERS

 on top 

of other fasteners, or with the tool at too steep 
an angle: the fasteners can ricochet causing 
personal injury. 

25 .DO NOT DRIVE FASTENERS CLOSE

 

to the edge of the work piece. The work piece 
is likely to split allowing the fastener to fly 
free or ricochet causing personal injury. 

26. KEEP ALERT

. Watch what you are 

doing. Use common sense. Do not operate any 
tool when you are tired. 

27. KEEP HANDS AND BODY PARTS 

away from area shown in Fig. 13 to avoid 
injury. 

28. THIS TOOL IS EQUIPPED WITH 
ADJUSTER 

that can adjust driving depth. 

When adjusting the driving depth, first 
disconnect from air supply and rotate the knob 
of the adjuster by hand until it is satisfactory. 

29. WHEN NOT IN USE,

 tool should be 

cleaned and put back into the packing box. 
For safety, keep out of reach of children. 
 

 

EMPLOYER’S RESPONSIBILITIES 

 

Employer must enforce compliance with the safety warnings and all other 
instructions contained in this manual. Keep this manual available for use by all 
people assigned to use this tool. For personal safety and proper operation of this 
tool, read and follow all of these instructions carefully. 
 
 
 
 

Summary of Contents for MI CN-90

Page 1: ...355x368x130mm 3 5 kgs 225 300pcs 70 120PSI 4 9 8 3bar 1 4 N P T 45 90mm MI CN 90mm Thank you very much for purchasing our MI CN 90mm Pneumatic Coilnailer COILNAILER MI CN 90mm ...

Page 2: ...nder Cap 59 HCN041 O ring 9 5x1 9 9 HCN093 Gasket 60 HCN142 O ring 10 3x1 9 10 HCN094 Spring 61 HCN143 Trigger Valve Seat 11 HCN095 Valve Seat 62 HCN044 O ring 12 8x1 9 12 HCN096 O ring 48 8x2 5 63 HCN144 Spring 13 HCN097 Valve 64 HCN145 O ring 5 5x1 5 14 HCN098 O ring 67x3 65 HCN146 Trigger Valve Stem 15 HCN099 Collar 66 HCN147 Tirgger Valve Guide 16 HCN100 Cylinder Seal 67 HCN148 Spring Pin 3x26...

Page 3: ...sion rust or in a having heavy powder environment 11 DISONNECT TOOL FROM AIR SUPLY HOSE before doing tool maintenance clearing a jammed fastener leaving work area moving tool to another location or handing the tool to another person 12 ONLY DISCONNECT THE QUICK CONNECTOR with the connector of the body tail portion air inlet no compressed air can be guaranteed when disconnecting If operation is not...

Page 4: ...rs between the small piston and small cylinder 2 O ring on the small piston is worn and damaged 3 Tool dry and lacks lubrication 4 The spring on the small piston is damaged 5 Air pressure is lower 6 Connecting screw of nose and body is loose 7 Stopped hook can t stop the fasteners 8 Bent fasteners 9 Wrong size fasteners 10 Gasket is damaged 11 Dry small piston 12 Small piston bumper is worn and da...

Page 5: ...ten screw recheck 2 Check replaceO ring lubricate 3 Replace the bumper 4 Disassemble and clean Air leaking at the upper portion and nose body 1 Screw is loose at the connecting port ion of the cylinder and body 2 O ring is damaged 3 Gasket is damaged 1 Tighten the screw and recheck 2 Check replace0 ring lubricate 3 Replace the gasket 23 GRIP TOOL FIRMLY TO MAINTAIN CONTROL while allowing tool to r...

Page 6: ...ep to achieve desired results See Fig 20 CLEARING A JAMMED FASTENER 1 CAUTION Disconnect tool from air supply 2 Open latch rotate lower housing and remove the nails of the lower housing 3 Use a slender soft steel rod to drive the drive blade to its uppermost position Use needle nose pliers to remove the jammed fastener see Fig 21 4 Follow instructions in PREPARING THE TOOL BEFORE DRIVING to reload...

Page 7: ...ing the tool to another person Clean and inspect tool daily Carefully check for proper operation of trigger and safety mechanism Do not use the tool unless both the trigger and the safety mechanism are functional or if the tool is leaking air or needs any other repair FASTENER SPECIFICATIONS Only use recommended fasteners They may be screw ring and smooth fasteners OPERATING INSTRUCTIONS FOREWORD ...

Page 8: ...9 16 nails 4 Rotate to the side of the body Place a coil of nails over the Lower Nail Housing Uncoil enough nails to reach the Feed Hook and place the second nail between the teeth on the Feed Hook 5 Close the latch see Fig 17 6 Adjust directional exhaust deflector see Fig 18 so that the exhaust air blast will be directed away from the operator Grasp the deflector and rotate it to the desired posi...

Reviews: