Windsor EPB2 Owner's Manual page 5

PERIODIC MAINTENANCE
Twice a month, flush a white vinegar solution (One quart vinegar
to two gallons of water) or anti–browning solution (mixed as
directed) through the POWER ESCORT This will prevent build–up
of alkaline residue in the system.
If spray jets become clogged, remove the spray tips, wash them
thoroughly, and blow dry.
NOTE:
Do not use pins, wire, etc. to clean nozzles as this could destroy
spray pattern.
Apply silicone lubricant to solution nipple.
Periodically inspect all hoses, electrical cables, filters and con–
nections on your machine. Frayed or cracked hoses should be
repaired or replaced to eliminate vacuum or solution pressure
loss. Because the electrical cable must be well insulated and cable
connector screws kept tight, If the cable insulation is broken or
frayed, repair or replace it immediately. Don't take chances with
electrical fire or shock.
PROTECT FROM FREEZING
If it becomes necessary to store in temperatures that could drop below
40 F, the pumping system, hoses and valves must be protected from
freezing with a methyl hydrate window washer antifreeze solution. Do not use
ethylene glycol or cooling system antifreezes.
1. Add a gallon or two of window washer antifreeze to the supply
tank, turn on pump switch and spray until the antifreeze solution
fills the solution lines.
MAINTENANCE INSTRUCTIONS FOR
POWER ESCORT
WARNING:
Remove machine power cord from electrical
source before making any adjustments or repairs to the
machine. Only qualified maintenance personnel are to
perform repairs.
NOTE: In the following instructions all letter
designations, IE:
1
coming graphical examples in this guide.
TO ACCESS VAC MOTOR/ PUMP ASSEMBLY
Remove solution from both tanks.
1. SOLUTION TANK: Attach the 4 ft. vac hose, supplied with machine,
to dome. Switch on vac motor and vacuum unused solution into
recovery tank.
2. RECOVERY TANK: Remove drain hose from keeper and empty
solution into bucket or floor drain.
VACUUM MOTOR
1. Remove (2) tank mounting bolts from rear chassis panel.
2. Lift up recovery tank to access vac exhaust hose. Disconnect
hose from vac motor, motor wire leads and remove tank/vac
2
motor.
will be shown in the up-
3. To inspect motor brushes, remove brush holder assembly.
Brushes should be replaced when worn to 3/8 inch or after
about 250 operating hours. After second brush replacement
the armature commutator should be checked for pitting and
concentricity. Vac motors can be repaired but such repairs
should be made by a qualified motor repair shop.
VAC SHOE
1. Tilt machine back to rest on handle.
2. Remove (3) bolts holding shoe to tank.
(3rd bolt located at motor mounting plate.)
NOTE: When reinstalling a new vac shoe, proper alignment of
shoe to floor must be made.
1. Install vac shoe and tighten screws.
2. Set machine upright on a flat–level surface and check vac
shoe for level contact on the flat surface.
3. Make adjustment at axle leveling screws by tightening/
loosening both of the lock nuts until shoe is level.
TRANSPORT WHEELS
1. Remove screw and hub cap
axle.. Before reinstalling wheel, clean axle and apply light
coating of silicone lubricant.
BRUSH ASSEMBLY / BEARING
1. Remove belt guard and "ROLL" belt off motor pulley.
2. Remove screw from each end of brush shaft and remove
brush assembly from housing. Replace brush or bearings as
required.
SWITCH CONTROL PANEL
1. Remove (2) screws holding switch housing to handle.
2. Replace switches as required.
CAUTION:
connected to proper terminals. Refer to wiring diagram located on
back panel (or owners guide) for assistance.
PUMP ASSEMBLY
P H
OWER EAD
2. Tilt machine back to rest on handle.
3. Remove cable from lift bracket.
Remove (2) pivot bolts.
4. Disconnect solution hose from elbow.
5. Remove (4) bolts holding pump/plate assembly to tank.
6. Lift out pump & plate assembly. Disconnect hoses from
pump and pump lead wires from junction box.
7. Refer to pump parts list for replacement parts.
CAUTION:
wiring diagram for proper connections.
CAUTION:
1
NOT OVER TIGHTEN –
discharge ports in pump head.
98255 7/1/97
4
and slide wheel off
When replacing switches, make sure wire leads are
R
EMOVAL
6
7
When replacing electrical parts refer to the machine
When replacing hosebarbs on pump head
as this could crack intake and
3
5
8
– DO
5