Instruction manual

MSSM0302AE/8414BV (1 of 3)
ÈSUSPENSION ADJUSTMENTS FOR
DIVIDED CYLINDER MACHINES
The suspension system on Milnor
®
Hydro-cushion
®
machines is adjusted and thoroughly tested at the factory.
It should not require subsequent adjustment unless the machine is distorted during shipment or installation or unless
some component of the system, such as a Hydro-cushion
®
cylinder is replaced.
There are two primary objectives when adjusting the suspension system on any Hydro-cushion
®
machine model:
1. To position the shell in the proper location within the frame (hanging dimensions) to maximize freedom of
movement of the shell and to insure proper draining, and
2. To adjust the length of up and down travel at each of the push-down locations (push down travel) so that the
shell will not be distorted (racked) when pushed down.
All Milnor
®
Hydro-cushion
®
machines contain the following suspension system components (as shown on
the typical system on the previous page):
1. Hydro-cushion
®
cylinder—which suspend the shell and cylinder within the frame and provide vibration
damping during extraction.
2. Pneumatic push down devices (air bags)—which when inflated, force the shell downward where it is held
against rigid pads during loading, unloading, washing, and draining.
3. Metal or rubber pads—some rigidly fixed to the shell and some rigidly fixed to the frame, which come in con-
tact when the shell is pushed down.
The actual configuration of these components varies from model to model.
ÊHow Shell Adjustments are Made
Regardless of machine model, repositioning of the shell is always accomplished by adjusting the nuts at the
top of the upper Hydro-cushion
®
shafts. To move the shell up or down at the location of any Hydro-cushion
®
, see
FIGURE 2 and proceed as follows:
These procedures should be accomplished with power to the machine locked off .
1. Straighten the tongues on the keyed lock washer using
pliers, screw driver, etc.
2. Loosen the lock nut (upper hex nut) and move it all the
way up to the top of the shaft, but do not remove it.
3. Use the adjusting nut (lower hex nut) to “crank” the shaft
up or down as required.
4. Once final adjustment is made, while holding the adjust-
ing nut to prevent it from turning, retighten the lock nut
against the adjusting nut (with the lock washer between).
5. Rebend the tongues on the lockwasher as before, to
prevent movement of the nuts.
Hydro-cushion
®
adjusting and
lock nuts
Shell
Push-down
device (air bag)
Rest pad
Push-down
travel dimension
Frame
Hydro-cushion
®
cylinder
ÎFIGURE 1 (MSSM0302AE)
ÎHydro-cushion
®
Suspension System Components
(does not depict a specific machine)
Hydro-cushion
®
shaft
Locknut
Ajusting
Nut
Keyed
lockwasher
ÎFIGURE 2 (MSSM0302AE)
ÎHydro-cushion
®
Upper
Shaft and Adjusting Nuts
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