AA
09
0AG
Seri
es
Air
Mo
tor
‐
Driven
Tank
Wa
sher
0
8/
15/
20
11
10
MAINTENANCE
INFORMATION
IMPORTANT:
IT IS YOUR RESPONSIBILITY TO REGULARLY INSPECT AND MAKE
NECESSARY REPAIRS TO THIS PRODUCT IN ORDER TO MAINTAIN PROPER OPERATION.
IT IS RECOMMENDED THAT THE BUSHINGS AND SEALS BE INSPECTED EVERY 1000
HOURS OF OPERATION OR SOONER IF EXCESSIVE LEAKAGE OF THE SEALS OCCURS.
REMOVAL AND REPLACEMENT OF SPRAY NOZZLES (ITEM 19 ON PARTS LIST DRAWING PL 090AG)
Make sure the unit is completely disconnected from the air source before attempting to service nozzles.
1. Unscrew spray nozzles (19) from pinion shaft (18) and inspect for plugging and wear.
2. If a nozzle is plugged or partially plugged, clean out the orifice and inlet area with a wooden toothpick or
other relatively soft probe. Screwdrivers, wire or other hard metal items should not be used since they may
scratch and severely damage the orifice.
A. If the nozzles need replacement, obtain new nozzles.
3. Replace spray nozzles (19) in pinion shaft (18) by tightly screwing them in.
REMOVAL AND REPLACEMENT OF NOZZLE PINION BUSHINGS (ITEM 16 ON PARTS LIST PL 090AG)
1. Remove guard (21) by removing hex head cap screw (23) and shake-proof washer (22).
2. Unscrew pinion guard (14) and slide pinion gear (15) off of woodruff key (17). Remove woodruff key (17).
3. Carefully remove pinion shaft (18). A slight twist motion will help in removal.
4. Push out the old pinion bushings (16) and clean, and inspect yoke (13) seating surfaces.
5. Install new pinion bushings (16) until they seat fully against the yoke (13).
6. Clean and inspect the pinion shaft (18) and slide through the pinion bushings (16). A suitable lubricant on
the leading edge will help in installation.
7. Install the woodruff key (17) and pinion gear (15). The pinion shaft (18) may need to be rotated slightly to
allow proper meshing of pinion gear (15) and gear (12).
8. Seat pinion gear (15) fully against pinion bushing (16) and thread pinion guard (14) onto pinion shaft (18),
tighten to 17 ft/lbs.
9. Re-install guard (21) and tighten hex head cap screw (23) and shake-proof washer (22).
REMOVAL OF #46340 AIR MOTOR DRIVE (SEE PARTS LIST DRAWING PL 46340)
1. First make sure the unit is completely disconnected from the air source.
2. Using a 4 mm Allen Wrench, unscrew and remove both 5 mm socket head cap screws (1) and respective
spring washers (2).
3. You should now be able to lift the air motor drive completely off the 190 inlet body casting.
REMOVAL/REPLACEMENT OF AIR MOTOR DRIVE COUPLING (ITEM 8 ON PARTS LIST PL 46340)
1. If it is necessary to remove the coupling (5) from the gear motor sub-assembly (11) shaft, tap the coupling
with a rubber or plastic mallet until it releases from the shaft.
2. To reassemble, align the keyway on the coupling (5) with the key (6) on the gear motor sub-assembly (11)
shaft and lightly tap the coupling (5) until it bottoms on the shaft.
NOTE:
The coupling (5) on the gear motor sub-assembly (11) shaft has a press fit so the coupling (5) does
not inadvertently come apart during removal or installation of the gear motor sub-assembly.
