Namco Aqua Jet Rosta Spring Shaft Replacement Instructions

Update 1
AQUA JET
ROSTA SPRING SHAFT ASSEMBLY
REPLACEMENT INSTRUCTIONS 

TOOLS and PARTS REQUIRED
Ratchet Handle
Ratchet Handle Extension Bar
Hex Sockets ............... 10mm
13mm
17mm
9/16 
„
 AF
Spanner ..................... 13mm
Pozi Driver ................. No.2
Hex Wrench ............... 8mm
Security Wrench for M5 Security Button Head Screws
Rosta Spring Shaft Assembly ....... Part No 46000088A (Supplied)
10ml Loctite 242 ............................ Part No 95000004 (Supplied)
Castrol LM Grease ........................ Part No  - - - - - - - (Supplied)
SAFETY WARNINGS...

1. Remove 4off Hex Head Screws (M8x60). Raise the level
adjusters on the Ride Assembly and separate the ride assembly
from the monitor cabinet only sufficiently enough to disconnect
the connectors and air line.
Note: Ensure that the blue locking ring is pushed towards the
connector when removing the air tube. There may be a loud
“hissing” noise as the air in the compressor tank is released,
2. Move the ride assembly away from the monitor cabinet to give
sufficient room to work and lower the level...

9. Disconnect the 3way and 9way connectors
located at the base of the control arm on the
right hand side.
10. Remove 8off  Hex Head Screws (M8x45) and
remove the control arm assembly. The 13mm
spanner will be required to remove the two
front screws as there is insufficient room to use
a socket.
Note: This assembly is heavy, ensure that at
least two people are available to remove this
unit.
11. Disconnect the 15way connector and
remove the Pozi Head Screw
(M4x12) retaining the Earth wire
inside the Tank...

21. Remove the Hex Socket Head Screw (M12x16) and remove the Retaining Washer.
22. Remove 4off Hex Head Screws (M6x16) and remove the Rosta Spring Bracket.
23. Slide the Rosta Spring off the shaft.
24. Remove the Spacer Washer and slide the Swing Arm Assembly off the shaft.
25. Repeat steps 21 - 24 to remove the other Swing Arm Assembly.
CAUTION
All Hex Head Screws must have Loctite 242 applied to the thread when being
refitted.
Ensure that all Spring and Flat Washers are refitted and all screws...

31. Repeat steps 27-30 to fit the other Swing Arm Assembly.
32. Replace the Rosta Spring Shaft Assembly to the Main Base Assembly and fit, finger tight,
the 7off Hex Head Screws (M6x25). Fully tighten the screws.
Note: This item is heavy. Ensure that two people are available to replace this item.
33. Replace the Ride Assembly on to the
bearings and Joint Box making sure
that the wires and air tube are passed
through and taking care not to trap
fingers or clothing.
Note: This item is heavy. Ensure that...

43. Reconnect the two 2way connectors
on the air valves. (The plugs can go
into either socket)
44. Refit the Air Tubes to connectors A
and B. The tubes are just pushed fully
into the connectors.
45. Raise the level adjusters on the ride base and move it to the monitor cabinet. Reconnect
the Air Tube from the Ride Base to the Monitor Cabinet.
Turn the machine ON and listen for any air leaks. If there are any leaks push the air tubes
in fully until the connection is sealed.
Turn the machine OFF and...

54. Replace the Rubber Skirts and fixing brackets
using the 8off Security Head Screws (M5x30)
4ea side.
55. Raise the level adjusters on the Ride Base and move the Ride Base to the Monitor
Cabinet.
56. Reconnect the air tube and loom connectors. Refit the 4off Hex Head Screws (M8x60) to
join the Ride Assembly to the Monitor Cabinet, ensuring that the air tube or wiring is not
trapped.
57. Lower the level adjusters on the Ride Base so that the castors are approx. 5mm from the
ground. Tighten the locking...