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4.3.  Fit new retaining screw (15), disc springs (14), packing piece (13) and needle packing set (12) 

over needle (16). 

 
4.4.  Insert assembly into Spray Head and screw in retaining screw (15) by hand. 

 

4.5.  Remove needle (16) and re-insert from opposite end (See Figure 3). 
4.6.  Draw needle (16) back until the hexagon key fits into the retaining screw without touching the 

end of the needle (See Figure 4). 

4.7.  Fully tighten retaining screw then back off approximately half a turn – check the needle 

movement. The needle should not require excessive force to be moved or be loose – adjust if 
necessary. 

4.8.  Remove needle (16). 
4.9.  Re-assemble baffle (4, 5 and 6) and fluid tip (3) with new seals as described. 
 
4.10. Re-fit needle (16) in correct orientation. 

 
5.  Re-assemble spray head to gun. Check ‘O’ rings (11) are in position. Engage fluid needle (16) into 

piston. Push spray head in and align with location pin, tighten screws (7). Refit air cap and material 
hose(s). 

 

TO DISMANTLE GUN BODY, See Figure 1. 
 

  

Disconnect hoses and release screw (30). 

5.1.  Remove spray head assembly see steps 1 to 4 and ratchet knob (36). 
5.2.  Piston (28) and Seals (19, 22 and 29). 
5.3.  Remove end cap (35) using pin spanner which is part of the accessory tool kit AGG-412. 
5.4.  Remove springs (32 and 33) and piston (28). Care must be taken when removing the piston 

(28) from the gun to ensure that the front forks do not damage the front seal (19). 

5.5.  Remove the cylinder sleeve (26), accessory tool J-24728 can be used to extract it from the 

body. 

5.6.  Remove the seal and spacer (25), ‘O’ ring (24), spacer (23) and valve seat (22). 
5.7.  Using the hexagon key tool provided in the AGG-412 accessory tool kit, remove the seal locking 

ring (21), front seal (19) and seal ring (20). 

5.8.  Fit new front seal (19) into the locking ring (21) and using the hexagon key re-assemble, with 

seal ring (20) into body. 

5.9.  To replace piston seal (29), clamp accessory tool J-24708 into vice jaws, pins upwards. Position 

holes in piston (28) onto tool locating pins. Remove piston end cap and seal (29), clean end cap 
threads and end of piston. Fit new seal to piston, wipe clean the bore of the cylinder sleeve (26) 
and apply a light coating of soft petroleum jelly, remove ‘O’ ring (27) and replace with a new 
one. 
Push cylinder sleeve over piston seal (29) ensuring the end of the cylinder sleeve with the 
identification groove is pushed on first. Apply one drop of medium strength thread 
locking/sealing compound to the threads of the piston end cap and assemble to piston. 
Carefully tighten piston end cap, compressing seal (29) until end cap makes contact with the 
back face of the piston. Recommended torque: 3.5Nm (30lbf in). 

 

NOTE: This assembly should be left standing upright for 1 hour to allow to compound to 
cure. 

5.10. Re-assemble valve seat (22) ensuring lip is facing out towards the back of the gun body. 
5.11. Re-assemble spacer (23) and ‘O’ ring (24). 
5.12. Remove piston and cylinder sleeve assembly from tool and carefully push seal and spacer (25) 

onto piston with lips of seal facing away from cylinder sleeve. 

5.13. Fit complete assembly into gun. 
5.14. Refit springs (32 and 33), zero sleeve (34) and end cap (35) and tighten down to ensure all 

inner components have been securely compressed into position. Recommended torque 21-
24Nm (190-210lbf in). 

5.15. Using a screwdriver rotate piston (28) so that forks are facing upwards to allow spray head to be 

fitted. 

Summary of Contents for AGGS-522

Page 1: ...SB E 2 702 ISS 01 Operation Manual AGGS 522 Automatic Spray Gun E P 1 12...

Page 2: ...arts will be increased If there is any doubt regarding the suitability of a specific material advise what material is to be used and or submit a sample for test MODELS The automatic spray gun type AGG...

Page 3: ...imum pattern mm 13 JGHV 16 13 0 85m GX JGHV 473 GX K AGGS 420 GX K 480 150 200 19 24 180 305 X 63 13 JGHV 16 13 1 0mm FY JGHV 473 FY K AGGS 420 FY K 480 200 240 19 24 180 305 X 63 13 JGHV 16 13 1 4mm...

Page 4: ...praying If in doubt contact your material supplier The use of respiratory protective equipment is recommended at all times The type of equipment must be compatible with the material being sprayed Alwa...

Page 5: ...1 16 CHART 2 NEEDLE 1 17 AGG 33 COVER 1 18 AGG 403 CONTROL VALVE 2 19 SST 7711 SEAL 2 Ref Order No Description Qty 20 AGG 39 SEAL RING 1 21 AGGS 29 LOOKING RING 1 22 AGG 4 VALVE SEAT 1 23 AGG 5 SPACER...

Page 6: ...he material 2 Adjust the spray gun controls and atomizing pressure before turning material supply on 3 Open valves D marked FAN and E marked ATOM by turning counter clockwise 4 To adjust fluid needle...

Page 7: ...ad 10 up to disengage fluid needle 16 from piston 28 With spray head removed all components can easily be removed and replaced Material Connectors Plug 8 9 WARNING To provide protection from the ingre...

Page 8: ...7 Using the hexagon key tool provided in the AGG 412 accessory tool kit remove the seal locking ring 21 front seal 19 and seal ring 20 5 8 Fit new front seal 19 into the locking ring 21 and using the...

Page 9: ...KK 4559 18 to check atomizing pressure remove cap and fit test cap and gauge SERVICE KIT Order KK 4566 add fluid tip size required Example KK 4566 FFH Parts marked with are included in the kit GUN MO...

Page 10: ...uce material flow E 1 Not enough material E 1 Reduce air pressure or increase material flow F 1 Insufficient material in tank or an obstruction in the hose 2 Gun material passage blocked 3 Worn packin...

Page 11: ...2007 ITW Finishing Systems and Products 11 E...

Page 12: ...ss http www itw finishing de ITW Automotive Finishing UK Anchorbrook Industrial Estate Lockside Aldridge Walsall UK Tel No 01922 423700 Telefax No 01922 423705 Website address http www itweuropeanfini...

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