Regular Maintenance; Electric Motor Maintenance; Daily Maintenance; Oil And Lubrication Instructions - AIRLESSCO SL1100 Operation And Repair Manual

Maintenance

Regular Maintenance

1. Always stop the pump at the bottom of its stroke
when you take a break or at the end of the day. This
helps keep material from drying on the rod, damag-
ing the packings.
2. Keep displacement pump packing nut/wet cup 1/3
full of Airlessco Throat Seal Oil at all times. The
TSO helps protect the packings and rod.
3. Lubricate Connecting Rod Pin every 3 months.

Daily Maintenance

Inspect the packing nut daily. If seepage of paint into the
packing nut and/or movement of the piston upward is
found (while not spraying), the packing nut should be
tightened just enough to stop leakage. Overtightening
will damage the packings and reduce the packing life.

Oil and Lubrication Instructions

Sealed
Bearing
Oil impregnated sleeve - dip in
hot 10W oil when removed
Fill plug- unit has grease in gearbox from factory
and will not require changing. (Grease - PN
301178)
3A1184A
Bleed (Weep Hole)
1 oz. SAE 30W Oi
- semi-annually
ti15992a

Electric Motor Maintenance

Lubrication
The motor is supplied with pre-lubricated ball bearings,
lubricated for the life of the bearing.
Motor Brushes
Motor brushes need periodic inspection and replace-
ment as wear indicates. Standard Leeson brushes have
an initial length of 1 and 1/4" and should be replaced
when they are worn to a length of 5/8". Brush wear is
greatly influenced by individual application and it is rec-
ommended that brush wear be checked at early inter-
vals of operation in order to determine future required
inspection.
To change the brushes:
1. Unplug the machine.
2. Remove the cover over the motor.
3. Open the two covers at the rear of the motor.
4. Loosen the screw under the brush.
5. Pull out the wire.
6. Push the brush retainer clip in and withdraw.
7. Remove the worn brushes.
8. Install new brushes in the reverse order.
To increase brush life, new brushes (Part #3301146 for
110 volt) need to have a run in period. After changing
brushes, set the machine for spraying. With a bucket of
Pump Conditioner and water, a 50' 1/4" airless hose, air-
less gun and tip on unit, open the prime valve and switch
on. The pump will now prime. With pump running in the
prime mode, turn the pressure control knob to high pres-
sure. (The pump has to cycle fast with no pressure in
the pump). Run the pump for 20 minutes and the
brushes will be run in.
Maintenance
11