Scheduled
Maintenance (Cont)
14
Scroll Enclosure Air Compressors
REPLACE TIP SEAL
1. Remove the six nuts (Key #60).
2. Remove the stationary scroll housing
(Key #1).
3. Take out the old tip seal from the
orbiting scroll housing and stationary
scroll housing.
4. Remove the old dust seals from both
housings.
Install the new tip seals and dust seals in
the stationary and orbiting scroll hous-
ings in the following manner:
1. Blow off any dust from both scroll
housings.
2. Install the high pressure, or shorter
tip seal, from the center of the scroll
and extend the tip seal outward in
the seal channel.
NOTE: The side and bottom lip notches
face inward and down into the channel.
3. Install the low pressure, or longer tip
seal, in the same way, but make sure
there is no gap between the high and
low pressure seals.
Do not attempt to
remove the orbit
scroll from the housing.
After installing half
of the low pressure
seal, carefully remove the seal from the
channel and make sure the seal is prop-
erly locking onto the channel indenta-
tions located just past the high pressure
seal.
NOTE: The indentations are machined
into the seal channel to prevent the low
pressure seal from moving.
4. Blow off any dust caused by remov-
ing the seal from the seal channel.
5. Install the low pressure seal com-
pletely. Make sure the side and bot-
tom lip notches are facing inward
and down into the seal channel.
NOTE: The lip notches must not be dis-
torted in the seal or torn off.
!
CAUTION
!
CAUTION
6. Install backup tube in the dust seal
channel.
7. Place dust seal over the backup tube.
The backup tube
must meet at the bot-
tom of the housing in the six o'clock
position. The dust seal must meet on the
right side of the housing, or in the three
o'clock position.
!
CAUTION
Figure 5
Extension
Adapter
PC - Orbit Scroll
Side Bearings
Grease Fitting
PC - Housing
Side Bearings
Grease
Gun
3 Grease Caps
Air End Pulley & Cooling
Fan (Not Shown)
Fan Duct Shroud
(Not Shown)
8. Install the stationary scroll housing
onto the orbiting scroll housing
and reassemble the unit.
9. Make sure when reassembling the
unit, the Pulley Belt and the
Housing Nut follow the specifica-
tions as detailed in Chart 19 below.
Figure 6
Extension
Adapter
Needle
Adapter
PC - Orbit Scroll Side Bearings
Grease Fitting
PC -
Housing
Side
Bearings
Pulley Belt
Housing Nut
Key #65
Key #60
Model
Size
Torque
Size
Torque
SLP03
M8
175
M8
175
SLP05
M8
175
M10
260
Chart 19 - Belt Torque (In. - lbs.)
