NS-40 Manual
Page 7
729-110-036
Revision 1.14
August 2013
MAINTENANCE INSTRUCTIONS
Gun Maintenance
If gun motion becomes sluggish or erratic, the gun
should be disassembled and cleaned.
Disassembly of Gun
1.
Remove foot and leg assembly. Remove chuck
with drift pin.
2.
Remove chuck adaptor (24) and dust bellows
(21).
3.
Remove two screws (35) and front cover insert
and leg support assembly (13).
4.
Disconnect weld cable extension by removing
screw (31) and lockwasher (46). Remove any
remaining thread locking compound residue.
Remove lifting rod and cable connector
assembly (5) and mainspring (17).
5.
Remove four screws (30), lifting mechanism
stop assembly (6), lifting ring (7), moveable
core assembly (8), core spring (18) and lifting
ring spring (19).
Cleaning
Blow or wipe the gun body and parts clean, the
inside diameter of the lifting ring (7) and the
mating outer diameter of the lifting rod should be
carefully examined. If these surfaces reveal any
signs of dirt or a dull reddish brown stain, clean
and polish with a fine (600 grit or finer) abrasive
paper. Lifting rod must be re-lubricated after
cleaning gun. See "Reassembly of Gun".
Reassembly of Gun
1.
Assemble lifting ring (7) with moveable core
assembly (8) and lifting ring and core springs
(18) and (19). Install in gun body.
2.
Install lifting mechanism stop assembly (6).
using four screws (30). Make certain that
insulated side is facing outward.
3.
Lubricate lifting rod in area indicated with a
thin coat of high temperature bearing grease
Lubrico M-24-M (#523-001-013) or equivalent.
4.
Install lifting rod and cable connector assembly
(5) and mainspring (17).
5.
Connect weld cable extension (15) to lifting rod
and cable connector with screw (31) and
lockwasher (46). Screw should have a light
coating of thread locking compound (47) and
should be tightened to 37 to 40 in*lbs. Hook
must remain square.
6.
Install front cover insert and leg support
assembly (13), screws (35), dust bellows (21),
and chuck adaptor (24).
7.
Install foot and leg assembly and chuck.
Control Cable Color Coding
Cannon Connector
Pin
Description
1
No Connection
2
Red (To Red Coil Lead)
3
White (To Trigger)
4
Black (To Trigger)
5
Green (To Green Coil
Lead)
6
No Connection
R & S Connector
Pin
Description
X
No Connection
Y
Green (To Green Coil
Lead)
Z
Black (To Trigger)
Small
Pin
White (To Trigger)
Hubbell Connector
Pin
Description
Silver
White
Brass
Black
Center
No Connection
