Macnaught Flexigun K32 User manual

Thank you for purchasing a Macnaught K32 single hand
operated grease gun.
Please read and retain this instruction sheet to assist you
in the operation and maintenance of this quality product.
DESCRIPTION
Your Macnaught Flexigun is a pistol grip type grease gun
complete with high pressure flexible grease hose for easy
access to those hard to reach grease points.
It is designed for use with 400g cartridges or bulk grease.
The filler/bleeder valve in the head also allows clean filling
from 20kg (35lb) grease pails using a Macnaught “J2” Grease
Gun Filler Pump.
The “variable stroke” feature of this grease gun allows you to
achieve higher greasing pressures using short piston strokes
or high volume with a full stroke.
CAUTION
Caution must be observed when either unscrewing the
barrel or unscrewing the pull handle from the follower rod,
the large follower spring inside the barrel is energised.
A) Unscrew Barrel and “Lock” Follower (see Fig 4).
C) Remove both caps from grease cartridge. Insert into
Barrel, larger open end first. Screw barrel to head tightly.
B) Insert Barrel into grease and slowly pull Follower Rod
out while pushing Barrel further into grease (see Fig 2)..
B) Pull Follower Rod out until groove in rod can be moved
into slot in Barrel End Cap, lock the rod into end cap.
K32 FLEXIGUN
Fig2 Fig3
1
KF145
0206
0005
K32 FLEXIGUN
If Using Bulk Grease:
A) Unscrew Barrel and lock Follower (see Fig 4).
Select the correct follower position (see Fig 1):
To select the correct follower position for bulk fill or cartridge
D) Bleed air from grease (see Fig 5).
Fig1
If Using Cartridge Grease:
1. Loading Gun with Grease
INSTRUCTION MANUAL
INTRODUCTION
IMPORTANT
C) When groove in rod lines up with slot in end cap, lock rod
in end cap.

D) Wipe excess grease from outside of Barrel then screw
Barrel to head tightly.
E) Bleed air from grease (see Fig 5).
If Using J2 filler Pump:
A) “Lock” Follower to Follower Rod (see Fig 4).
B) Push Filler/Bleeder Valve into J2 Pump outlet
(see Fig 3).
C) Hold Flexigun and pump J2 handle. The Follower Rod
will slowly move out the end of the barrel because the
Follower is “locked” to the rod.
D) Stop pumping when groove in Follower Rod is
visible. Overfilling can cause grease to by-pass the
follower.
E) Bleed air from grease (see Fig 5).
2. How To “Lock the Follower
There is a slot in the front face plate of the Follower Assy. The
Follower Rod has a matching lug which allows the Rod to be
“locked” to the Follower so force can be applied to the
Follower to expel any air pockets in the grease.
To “lock” the Follower, align the Follower Rod lug and Follower
slot. Pull the Rod back then turn through 90 deg.
UNLOCKED LUGS LOCKED LUGS
PARRALLEL TO SLOT 90 DEG TO SLOT
To “unlock” the Follower, gently push and turn the Follower
Rod. When the lug and slot are aligned, the Rod will be free to
move through the follower.
3. To Bleed Air From Grease
Normally there is no need to bleed air through the Filler/
Bleeder Valve. The gun will self bleed by pumping the handle
5 to 10 times.
Pump the handle until grease appears at the coupler
(usually 5 to 10 times is sufficient).
If the grease is thick, cold or “tacky”, or an air-lock
is caused by the follower sticking in the cartridge:
Force air out through the Filler/Bleeder valve:
Important: Follower must be “locked” to rod (see Fig 4).
A) Release Follower Rod From slot in end cap.
B) Unscrew the Filler/Bleeder Valve 2 full turns (see Fig 5).
C) Place the rod Pull Handle on a flat surface and push gun
down firmly (see Fig 5). Some grease will appear before
air is expelled.
D) Close the Filler/Bleeder Valve by hand, firmly.
E) Gently push and turn the Follower Rod until it goes fully
into the Barrel.
4. The Variable Stroke Feature
Your Flexigun is fitted with an extra Check Valve which allows
you to use shorter hand strokes for fast easy greasing and
achieve higher pressures. The Handle does not have to
return all the way to its original position before the next
pumping stroke.
Fig4
Fig5
PUSH
DOWN FILLER BLEEDER
VALVE
FOLLOWERROD
!
"
#
2
After each reload of grease:
A) Release the Follower Rod from the End Cap.
B) Gently push and turn the rod until it goes fully into the
barrel.

12345
6
7
8
9
10
11 12 13 14
15
21
22
23
24
25
26
27
5
16
17
18
19 20
Important:
Use Loctite sealant on
check valve threads
3
Order for replacement
Item No Part No No off Part or set Kit Ref Part name
K32-1K (KIT A) OVERHAUL KIT
21 KF14A-1K (KIT B) BFOLLOWER KIT
1 KY 1 KY Coupler
2 KF9 1 KF9 Flexible hose Assy’
3 KD64 1 A Spring keeper
4 KF32 1 A Outlet ball spring
5 N400 2 A ¼” Steel ball
6 KF118 1 KF126s A Outlet body
7 BS013 2 A O’Ring
8 KF75 1 A Filler/Bleeder valve
9 KF109 1 A Check valve spring
10 KF107 1 A Check valve body
11 KF138 1 KF138s (incl N158) Body
12 BS011 1 A O’Ring
13 KF108 1 A Piston
14 KF64 1 A Piston spring
15 KF65 1 KF122s A Piston sleeve
16 N252 1 A Circlip
17 N550 2 A Retainer screw
18 KF19 1 A Piston roller
19 KF70 2 A Pivot pin
20 KF129 1 KF129s Handle
22 KF104 1 Follower spring
23 KF25 1 KF25s Follower rod
25 KB13 1 Pull Handle
26 KF27 1 Barrel
24 KF26 1 KF27s End cap
27 N158 1 B Seal washer
SPARE PARTS LIST
SPARE PARTS DIAGRAM

Problem Cause Remedy
1) Gun pumps little or no A) Air lock – Follower stuck in cartridge. A) 1) Check condition of cartridge. Replace if
grease. damaged.
2) “Lock” follower to rod (refer fig 4 ) and push
follower into cartridge.
B) Air lock – Grease too thick or cold. B) 1) Consult grease supplier.
2) Store grease gun and grease away from
extreme cold.
C) Check valve (10) ball seat damaged or dirty. C) 1) Remove check valve (10).
2) Clean and inspect all components. Replace as
Required.
3) Important - use Loctite (or similar) thread sealant
on check valve threads.
D) Body outlet (14) ball seat dirty or damaged D) 1) Remove ball (3) and spring (4).
2) Disassemble, clean, and inspect all components.
Replace as required.
E) Worn or damaged Piston O-ring. E) 1) Remove handle (20).
2) Pull out plunger (13).
3) Replace O-ring (12).
2) Grease leaks past A) Follower (21) damaged or perished. A) Replace follower (21).
follower B) Over filling gun when using filler pump B) Stop pumping filler pump when groove on piston rod
Is visable at the back of barrel. Refer to filling instructions
TROUBLE SHOOTING GUIDE
4
Macnaught Pty Ltd
POBox90ArncliffeNSW2205Australia
Telephone [phone]
Facsimile [phone]
Email: [email protected]
Web:www.macnaught.com.au
MacnaughtPtyLtd(“Macnaught”)warrantsthatallProductsmanufacturedbyMacnaughtand
purchasedafter 1st of July 1999 willbefree from any defectscaused by faulty materialsor
workmanshipforaperiodof(5)yearsfromthe date of purchaseoftheproduct,providedthat
duringtheWarrantyperiod:
1) Macnaughtreceives notice settingout full detailsof any defect in any product and
detailsofthetimeandplaceofpurchase.
2) ThePurchaser,attheirowncostreturnstheproducttothenearestauthorized Macnaught
servicecenter.
Forcomponentrycontainedinthe product, (such as o’rings, seals, springsandhoses)
whicharesubjecttowear,thewarrantyperiodwillbe(12)monthsfromthedateof
purchaseoftheproduct.
Macnaughtshall,atitsoptionrepairorreplaceanyproductfounddefectiveby its inspection.
Thiswarrantydoesnotcoverfailureofpartsorcomponentswhich,inthejudgmentofMacnaught,
arisesfrommisuse,abrasioncorrosion, negligence, accident,substitutionofnon-Macnaught
parts,faultyinstallationortampering.
IfMacnaughtinspectiondisclosesnodefectinmaterialorworkmanship,repairorreplacement
andreturnwillbemadeatcustomarycharges.
Macnaught’sliabilityandthepurchaser’srightsunderthis Warranty shall be limited to such
repairor replacement and in particular, shall not extend to any direct, special,indirect or
consequentialdamageorlossesofanynature.
Theforegoingwarrantysupersedes,voidsandisinlieu of all or any other warranties.
“Note:Thiswarrantydoesnotformpartof,nordoesitconstitute,acontractbetweenMacnaught
andtheend-userorpurchaser.Itisadditionaltoanywarrantygivenbytheselleroftheproducts.
Thiswarrantydoesnotexclude, limit, restrictormodifythenon-excludablerightsorremedies
conferredupontheend-userorpurchaser, or thenon-excludabledutiesorliabilitiesimposed
onthe seller orMacnaught, by PartV, Divisions 2and 2AoftheTradePractices act 1974
(Commonwealth)orotherlegislative provisions.Macnaughtotherwiseexcludes,totheextent
permittedbylaw,anyrightsconferred on theend-userordutiesorliabilitiesimposeduponit.”
WARRANTY POLICY