General; Daily Operation; Maintenance After Initial 50 Hours Of Operation; Maintenance As Required By Lubrication Guide - Sullair LS-20T Operator's Manual

7.1 GENERAL

A good maintenance program is the key to long
compressor life. Below is a program that when ad-
hered to should keep your compressor in top run-
ning condition. Included in this program are routine
service operations for every major serviceable com-
ponent of the compressor. See Section 6.6 for in-
structions on Parts Replacement and Adjustment
Procedure.
DO NOT remove caps, plugs, and/or other compo-
nents when compressor is running or pressur-
ized.
Stop compressor and relieve all internal pressure
before doing so.

7.2 DAILY OPERATION

Prior to starting the compressor it is necessary to
check the fluid level in the sump. Should the level be
low, simply add the necessary amount. If the addi-
tion of fluid becomes too frequent, a simple problem
has developed which is causing this excessive loss.
See the Troubleshooting Section (6.8) under Exces-
sive Fluid Consumption for a probable cause and
remedy.
After a routine start has been made, observe the in-
strument panel gauges and be sure they indicate
the correct readings for that particular phase of op-
eration. After the compressor has warmed up, it is
recommended that a general check on the overall
compressor and instrument panel be made to as-
sure that the compressor is running properly.
7.3 MAINTENANCE AFTER INITIAL 50 HOURS OF
OPERATION
After the initial 50 hours of operation, a few mainte-
nance requirements are needed to rid the system of
any foreign materials. Perform the following mainte-
nance operations to prevent unnecessary prob-
lems.
1. Clean the return line strainer.
2. Clean the return line orifice.
3. Clean the compressor unit gear housing, bearing
and shaft seal orifices.
4. Clean the main filter element.
7.4 MAINTENANCE AS REQUIRED BY LUBRICATION
GU IDE ( SEC T ION 3
1. Drain the sump and change the compressor
fluid.
2. Replace the filter element.
3. Clean the return line strainer.
4. Lubricate the inlet cylinder linkage.
7.5 PARTS REPLACEMENT AND ADJUSTMENT
PROCEDURES
FILTER MAINTENANCE
Replace your fluid filter element when the mainte-
nance indicator shows red, or at every lubricant
WA R N I N G
!
)
MAINTENANCE
change (6 months). This must be done even if the
bearing filter indicator does not show red.
SEPARATOR MAINTENANCE
Ref er to Figur e 6 --- 1 . When the need f or a separ a tor
element replacement is indicated by the mainte-
nance indicator (usually mounted to the air receiver/
separator tank but can also be remote mounted),
use the following procedure for separator replace-
ment.
1. Remove the air receiver/separator tank lid by re-
moving the twelve (12) hex head capscrews.
NOTE
To assist with the removal of the tank lid, Sullair
has provided a 1"---8 nut to the top lid so it can be
removed by a 1"---8 eye bolt (which is available
from Sullair) or a similar type of lifting device.
2. Remove the 3/4"---10 jam nut and sealing hex nut
from the 3/4"---10 separator hold down rod.
3. Remove the round separator cover plate from the
top of the separator element.
4. Remove the old separator element and discard.
5. Scrape the old gasket material from the tank lid
mounting surface and the flanges mounting sur-
face on the tank. Be sure to keep all scrapings
from falling back inside of the tank.
6. Before installing the new separator elements,
make sure to lubricate both sealing gaskets on
the element with a lubricating compound (i.e.
Figure 7-1 Separator Elements
*Replacement Element P/N 02250119---666 (Primary)
**Replacement Element P/N 02250119---667 (Secondary)
Section 7
27