J. D. NEUHAUS Profi 025Ti, Руководство по эксплуатации

Страница: 119 / 218

Renewing motor lubrication:
Note:
The grease packing in the rotor chambers is
sufficient for approx. 250 hours of normal operation.
The rotor chambers are only emptied by approx. 75%.
In this condition, refilling must be performed.
The retaining rings 9 and Vyon washers 10 must be
removed in order to refill the chambers.
Then pack the chambers with high-performance
lubricant (JDN Art. no 11901) without forming cavities.
Use new Vyon washers to close off the lubricant
chambers and secure these using retaining rings.
Replace centre section halves with brake lining.
If the centre section half with brake lining is to be
replaced, the following removal operation is also
required.
Detach the hoist from the point of attachment and
set down carefully.
Detach the chain box if necessary.
Remove the control valve.
Remove centre section bolts 11 .
Detach the motor with centre section half on the
motor-side from the hoist.
Remove the bolts 12 and pull out the centre section
half with the brake lining 13 .
Motor installation with additional basic lubrication:
Apply high-performance grease lightly to braking
surface and rotor bearing (needle bush) in the centre
section half and slide this into the motor housing. At
the same time, insert the anti-twist device (pin).
Bolt centre section half to motor housing.
Coat the internal cylinder of the motor housing
lightly with high-performance grease.
Coat the entire rotor lightly with high-performance
grease and insert into the front rotor bearing with
the clutch side first.
Coat the vanes lightly with high-performance grease
and insert into the rotor slots with the starting aids.
Coat the braking surface and the outer diameter
including the brake piston seal lightly with high-
performance grease and push the brake piston with
the braking surface first into the internal cylinder.
Note the position of the eccentric bore.
Insert the brake springs into the bores of the brake
piston.
Loosen adjusting bolts 14 and lock nuts 15 . Screw
back adjusting bolts.
Apply high-performance grease lightly to rotor
bearing (needle bush) in the motor cover and install
motor cover. Ensure correct seating of the brake
springs and the locating pins to the motor housing
and to the brake piston. Do not tighten the four
adjusting bolts after bolting the motor cover in place,
only screw them in loosely by hand to the stop in the
cover. Screw back the lock nuts sufficiently
beforehand.
Then screw back the adjusting bolts 45° from the
stop, hold, and lock with the nuts. For lifting heights
of 10 m and more, a setting of up to 60° is required.
For operation in areas with ambient temperatures
exceeding 30° C, the adjustment must be carried out
with the device warmed up accordingly.
Checking vane wear
powered by air !
M A I N T E N A NC E
Page 51
Rotor Cylinder liner (internal cylinder)
V
2
max. = 0.2 mm
Brake piston
Vane
Brake disc
V
1
max. = 0.2 mm
L
max
= R - (V
1
+ V
2
)
L
min
= R - (V
1
+ V
2
) - 0.5 mm = L
max
- 0.5 mm
L
hmin
= 23 mm
R
L
h
L