Pentair LINCOLN 94804 User manual

LINCOLN
®
Models 94804, 94806, 94808
4¼, 6&8IN. AIRMOTORS
With AIR BRAKE®
Series “A”
APENTAIR COMPANY
OWNERS MANUAL
IT IS THE RESPONSIBILITY OF THE OWNER AND/OR OPERATOR TO PROPERLY USE AND MAINTAIN THIS EQUIPMENT.
CAREFULLY READ AND UNDERSTAND THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL BEFORE OPERATING
THIS EQUIPMENT.
If the operators not fluent in English, the instructions and warnings shall be read and discussed in theoperator’s native language,
making sure the operator comprehends the contents.
This equipment complies with OSHA Standards where applicable.
WARNING
DO NOT exceed the stated maximum working pressure
of the airmotor or of the lowest rated component in
your system.
DO NOT alter or modify any part of this equipment.
DO NOT operate this equipment with combustible
gas.
DO NOT attempt to repair ordisassemble the equipment
while the system is pressurized.
TIGHTEN all fluid connections securely before using
this equipment.
ALWAYS read and follow the fluid manufacturer’s
recommendations regarding fluid compatibility, and the
use of protective clothing and equipment.
CHECK all equipment regularly and repair or replace
worn or damaged parts immediately.
IMPORTANT: Failure to heed these warnings including
misuse, overpressurizing, modifying parts, using
incompatible chemicals and fluids, or using worn or
damaged parts, may result in equipment damage and/or
serious personal injury, fire, explosion, or property
damage.
This manual contains IMPORTANT WARNINGS and INSTRUCTIONS. READ AND RETAIN FOR REFERENCE.
LINCOLN One Lincoln Way Copyright 1993 Section -A50
St. Louis Missouri 63120-1578 Printed in U.S.A
®APENTAIR COMPANY [phone] Page -84B
NOV-93 FORM 402501

NOTE:
Use only with 6in.(152 mm) stroke
Pump Tubes. DO NOT OPERATE
with air contaminated with
materials not compatible with
BUNA-N Seals.
©Indicates Change
SPECIFICATIONS
CYLINDER EFFECTIVE
MODEL DIAMETER PISTON
IN. (MM) AREA
IN2 (CM2)
94808 8(203) 50 (324)
94808 6(152) 28 (182)
94804 4-1/4 (108) 14 (92)
30-100 (2-7)
30-100 (2-7) 30-200 3/4(20)
1/2(12)
1/2(12)
3/4"NPTF
3/4"NPTF
1/2"NPTF
-34-+93)
30-200 (2-14)
OPERATING OPERATING MIN. I.D.
PRESSURE TEMP. OF AIR AIR
RANGE RANGE SUPPLY INLET
PSIG (BAR) °F (°C) IN. (MM)
AIR CONS.
AT 75 CPM
@100 PSIG
SCFM
160
105
65
DIM. C
IN. (MM)
MAX.
RECOM. STROKE
MODEL LENGTH WEIGHT SEALS DIM. ADIM. B
SPEED IN. (MM) LB. (KG) MATERIAL IN. (MM) IN. (MM)
CPM
94808 46.5 (21) BUNA-N 11-1/4 (286) 11-1/16 (280) 22-3/4 (577) ©
94806 75 6 (152) 33 (15) and 9-1/4 (235) 9-1/4 (197) 22-3/4 (577) ©
94804 22 (10) *TEFLON® 7-1/2 (191) 7-1/4 (152) 23-5/8 (599) ©
2*TEFLON® Seals used with Power Valve Spool (Item 13) and Relay Valve (Item 17).

SERVICE ASSEMBLIES &KITS
To reduce down-time and take advantage of the modular design of the airmotor,
Lincoln recommends using the following Service Assembles for repair of the airmotor.
After removal, the faulty assembly can then be repaired using the corresponding
Soft Parts Kit.
1. Air Brake® Subassembly
P/N 84988
Note Will not fit 84803
3“ Series Ill Airmotor.
2. Soft Parts Kit P/N 84967 for repair
of Air Brake® Subassembly.
(See Parts List for contents.)
3. Relay Valve P/N 242787
4. Signal Valve Cap Kit
PIN 243853
5. Air Signal Valve P/N 241768
6. Trip Indicator P/N 243852
7. Stop Valve Repair Kit
P/N 244091
8. Air Pump Repair Kit
PIN 244092
9. Bleed Assembly P/N 243854
10. Gasket and Air Filter Kit
P/N 244089 (Items 40, 51 &53)
11. Gasket Plate with Check Valves
P/N 244093 (Items 52 &63)
12. Upper Body
P/N 243855 (Item 50)
13. Complete Air Brake® Repair Kit
P/N 243851
(Includes all kits listed in
#4 thru #11)
14. Cylinder Tube Soft Parts Kit
(Includes “O’-rings, piston seal, etc.)
P/N 84791 (8” Airmotor)
P/N 84792 (6” Airmotor)
P/N 84793 (4-1/4” Airmotor)
15. Muffler with Gasket P/N 242788
16. Muffler Element Kit P/N 84939
for repair of Muffler listed above.
(Includes element, felts and
gasket.)
17. Power Valve Subassembly
P/N 244804 (8” Airmotor)
P/N 244806 (6” Airmotor)
P/N 244808 (4-1/4” Airmotor)
18. Soft Parts Kit P/N 84968 for repair
of Power Valve Subassemblies listed
above.
19. Power Valve Spool &Body
P/N 244802
IMPORTANT: When replacing soft parts, replace all parts included in the soft parts kit. 3

POWER VALVE
SUBASSEMBLY
Torque to 50 in. lbs.
After 24 hours,
Re-torque to 50 in.
©Indicates Change
lbs.
DETAIL A
4NOTE: Refer to Page 3for Service Assemblies &Kits.

WARNING WARNING
ALWAYS check equipment for
proper operation before each
use, making sure safety devices
are in place and operating
properly. DO NOT alter ormodify
any part ofthe equipment asthis
may cause amalfunction and
result in serious bodily injury.
BEFORE CONNECTING
AIR MOTOR TO AIR LINE
LINCOLN SERIES Ill AIR MOTORS are
fully pneumatic and require aminimum
specified size of air supply hose for
proper operation. Check specification
for minimum I.D. of the air supply hose
and select corresponding sizes of air
controls and accessories for non-
restrictive air flow. Lincoln filter,
regulator with gauge and lubricators are
available as combination units (FRL).
For 3/8” air Iine -Model 83387-6
For 1/2” air line -Model 83387-8
For 3/4” air Iine -Model 83387-12
If quick disconnect coupling should be
used, install supplied coupler to insure
proper airmotor operation.
NOTE: Whenever flammable materials
are pumped, ground Airmotor according
to Local Codes.
OPERATING PRECAUTIONS
Use Lincoln replacement parts to
assure compatible pressure rating.
Heed ALL warnings.
DO NOT OPERATE Airmotor
continuously at speeds exceeding
75 cycles per minute.
DO NOT OPERATE Airmotor in excess
of recommended pressure range.
Disconnect air line and relieve (vent)
pressure when Airmotor sits idle for
long periods of time and before
servicing.
WARNING
ALWAYS read and follow the
fluid and solvent manufacturer’s
recommendations regarding the
use of protective clothing and
equipment.
To reduce the risk of serious
bodily injury or property damage.
NEVER exceed the maximum air
or fluid working pressure of the
lowest rated system component
ATTACHING AIRMOTOR TO
PUMPTUBE
1. Tightly attach the tie rods (Item 41) to
the Airmotor lower casting. Use short
threaded end of tie rods.
2. Mount Airmotor on top of pump tube
outlet and tightly connect pump tube
coupling nut to Airmotor Piston Rod
(Item 5).
3. Hand tighten tie rods to the pump
tube with four nuts (Item 42)
supplied with Airmotor.
4. Connect air supply and slowly cycle
pump several times using only
enough air pressure to operate pump
without stalling.
5. STOP pump on “UP’ stroke and
tighten four nuts to securely fasten
Airmotor to pump tube.
SERVICE AND
DISASSEMBLY PROCEDURE
WARNING
Always disconnect air supply
to Airmotor and relieve pressure
before checking, servicing, or
repairing any part of Airmotor.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
TOOLS REQUIRED
7/64 (.109) Hex Wrench
5/32 (.156) Hex Wrench
3/16 (.189) Hex Wrench
1/8 (.125) Hex Wrench
3/4 (.750) Open End Wrench
(for 6“ Airmotor)
15/16 (.937) Open End Wrench
(for 8” Airmotor)
1/2 (.500) Open End Wrench
(for 4-1/4” Airmotor)
1/2 (.500) Box End Wrench.
Pliers
0-100 in. lb. Torque Wrench.
The modular design of the Airmotor and
accessibility of vital operation parts
make service available without taking
Airmotor out of line or without
complete disassembly.
Power Valve
1.
Remove four screws (Items 27 &34)
with 3/1 6“ hex wrench (2 on each
side).
2. Remove End Caps (Items 10 &14).
3. Push out Valve Spool (Item 13).
4. Remove Spool Bumpers (Item 9)
(One from each end).
5. Remove “O” Ring (Item 11) (One from
each end of valve body).
6. Remove four Screws (Item 37) with
3/16“ hex wrench and lift valve body
(Item 12).
7. Remove Gasket (Item 15) to
complete valve disassembly.
8.To REASSEMBLE, REVERSE
procedure.
Air Brake® Subassembly
1. Remove four Screws (Item 23) (two on
each end) with 3/16“ hex wrench and
pull out Air Brake® Subassembly.
2. Remove two Screws (Item 39), with
7/64” hex wrench and lift out Valve
Body (Item 17).
3. Remove four Screws (Item 32) (two on
each side of Air Brake”) with 1/8” hex
wrench and remove Signal Valve
Caps (Item 31) and Air Signal Valves
(Item 20).
4. Remove four Screws (Item 24) with
3/16“ hex wrench and lift off Upper
Body (Item 50) and Upper Gasket
(Item 51).
5. Remove Gasket Plate (Item 52) and
Lower Gasket (Item 53).
6. Remove Air Filter (Item 40) in two
locations.
7. Remove Pump Sleeve (Item 56) and
Piston (Item 55).
8. Remove Diaphragm Seal and
Retainer, Diaphragm, Spring and
Stop Valve Assembly (Items 61, 57,
58, 59 &60).
9. Remove cover from Bleed Assembly
(Item 67) and remove lock screw.
Using 1/2” box end wrench, remove
bleed valve bolt and remaining parts.
10. Remove Trip Indicator (Item 48).
11. To REASSEMBLE, REVERSE
procedure, insuring that:
a. Upper and Lower Gaskets (Items
51 &53) are well oiled with 10 wt.
motor oil.
b. Assembly Screws (Items 23 &24)
are torqued to 65 to 70 in. Ibs.
Cylinder Tube and Muffler
1.Remove Air Brake” Subassembly
(See previous instructions).
2. Remove two Screws (Item 30) with
3/16” hex wrench and pull off
Muffler (Item 29).
3. Remove Gasket (Item 28).
4. Remove four Nuts (Item 26) with
open end wrench.
5. Lift upward and remove Upper
Casting (Item 8).
6. Remove four Tie Rods (Item 25).
7. Remove Air Tube (Item 7).
8. Lift upward and remove Cylinder
Tube (Item 6).
9. Remove Piston and Piston Rod
(Item 5).
10. Remove four Connecting Rods
(Item 41) with open end wrench.
11. To REASSEMBLE, REVERSE
procedure.
NOTE: Align two holes on the Cylinder
Tube (Item 6) with two holes on the Air
Brake” Subassembly before tightening
Tie Rods (Items 25) so that proper seal
with “O’’-rings is achieved.
5

PARTS LIST
Item Part Number
No. Description (Qty.) Model 94808 Model 94806 Model 94804
(8” Dia.) (6” Dia.) (4¼ Dia.)
1“U’’Cup (Buna-N)
2(1) (Note #1)
Rod Bearing (Note #2)
(2) (Note #3)
241732 241732 241732
3Seal, Cylinder (Buna-N) (2) (Note #1) (Note #2)
4“O”-ring (Buna-N) (2) (Note #3)
241740 (Note #2)
5Piston Rod Assembly (1) (Note #3)
241740 241742
6241741 Cylinder Tube (1)
7241744 Air Tube 241745
(1) 241746
241748
8Upper Casting 241748
(1) 241749
241750
9241751
Bumper, Valve (2) 241752
(Note #5)
10 Cap, Valve (Note #5)
(1) (Note #5)
241755 241755
11 241755
“O-ring (Buna-N) (2) (Note #5)
12 Body, Valve (Note #5)
(1) (Note #5)
244658 244658
13 244658
Spool, Valve (1) 241758 241758
14 Cap, Valve (1) 241758
241759
15 Gasket 241760
(1) 241761
(Note #5) (Note #5)
16 “O”-ring (Buna-N) (1) (Note #5)
242787
17 Relay Valve (Note #5) 242787
(1) 242787 242787
18 242787 “O-ring (Buna-N) (3) (Note #6) (Note #6)
19 “O’-ring (Buna-N) (1) (Note #6)
(Note #6) (Note #6)
20 (Note #6)
Air Signal Valve 241768 241768 241768
21 (2)
“O’’-ring, Piston (Buna-N)
22 (1) (Note #1) (Note #2)
Lower Casting (1) ------
241773
23 241774
Screw (1/4-20 x1-1/2”) (4) 241775
24 50051 50051
Screw (1/4-20 x7/8”) (4) 50051 50850 50850
25 Tie Rod (4) 50850
241766
26 241779
Nut (4) 241767
27 Screw 51018 51007 (2) 51001
28 Gasket 50521 50521 (1) (Note #4) 50521
(Note #4)
29 Muffler Body (1) 241021 (Note #4)
241021
30 241021
Screw (1/4-20 x1-1/2”)
31 Signal Valve Cap (2) 50051 50051
(2) (Note #8) 50051
32 Screw (Note #8)
(4) (Note #8) (Note #8)
33 Seal, Piston (Note #8)
(2) (Note #8)
______ ------
34 Screw (2) 50521 (Note #3) 241783 241783
35 “O”-ring (Buna-N) (2) (Note #6) (Note #6)
36 Adapter (1) (Note #6)
------ ------ 241789
37 Screw (1/4-20 x2-1/4’) (4) 244975 244975
38 Coupler (1) 244975
652012
39 Screw (6-32) 652012
(2) 50816 652008
50816
40 Air Filter (2) 50816 (Note #7)
41 Tie Rod (Note #7)
(4) (Note #7)
241023 241023 241023
42 Nut (1/2-20) (4) 236203 236203
43 Muffler Element (1) (Note #4) 236203
(Note #4)
44 Nipple (1) 650112 (Note #4)
650112
45 End Element 650112
(1) (Note #4) (Note #4)
46 Muffler Plate (1) 241027 (Note #4)
241027 241027
47 Screw, Self Tapping (10-32) (2) 66962 66962
48 Trip Indicator (1) 66962
243852 243852
49 “O’-ring (Buna-N) (4) 243852
(note #6) (Note #6)
50 Upper Body (1) (Note #6)
243855 243855
51 243855 Upper Gasket (Nitrile) (1) (Note #7)
52 Gasket Plate (Note #7)
(1) (Note #9) (Note #7)
(Note #9)
53 Lower Gasket (Nitrile) (1) (Note #9)
(Note #7) (Note #7)
54 Lower Body (1) (Note #7)
N/A N/A N/A
55 Piston (1) (Note #10) (Note #10)
56 Pump Sleeve (1) (Note #10)
(Note #10) (Note #10)
57 Diaphragm Retainer (1) (Note #10)
(Note #11)
58 Diaphragm (Note #11)
(1) (Note #11) (Note #11) (Note #11)
59 Spring (1) (Note #11) (Note #11)
(Note #11)
60 Stop Valve Assembly (1) (Note #11) (Note #11)
(Note #11)
61 Diaphragm Seal (1) (Note #11) (Note #11)
(Note #11)
62 “O”-ring (Buna-N) (1) (Note #11)
(Note #10) (Note #10)
63 Umbrella Seal (Nitrile) (Note #10)
(2) (Note #9&10) (Note #9&10) (Note #9&10)
64 Quad Ring (Buna-N) (1) (Note #10) (Note #10)
65 (Note #10)
Quad Ring (Buna-N) (1) (Note #110) (Note #10)
66 Spring Pin (2) (Note #10
243614 243614 243614
67 Bleed Assembly (1) 243854 243854 243854
NOTES: 1. Included in 84791 Cylinder Tube Soft Parts Kit for
Model 94808 (8” Airmotor).
2. Included in 84792 Cylinder Tube Soft Parts Kit for
Model 94806 (6” Airmotor).
3. Included in 84793 Cylinder Tube Soft Parts Kit for
Model 94804 (4-1/4” Airmotor).
4. Included in 84939 Muffler Element Kit.
5. Included in 84968 Soft Parts Kit for Power
Valve Subassembly.
6. Included in 84967 Soft Parts Kit for Air Brake®
Subassembly.
7. Included in 244069 Gasket and Air Filter Kit.
8. Included in 243853 Signal Valve Cap Kit
9. Included in 244093 Gasket Plate with Check
Valves.
10. Included in 244092 Air Pump Repair Kit.
11. Included in 244091 Stop Valve Repair Kit.
N/A -Not Available
6

MODEL 94804
Assemble Adapter to Piston Rod
Using Loctite #242 Blue on threads,
Torque to 60-65 Ft. Lbs.
Torque to
MODELS 94806 and 94808
7

SETTING THE AIR BRAKE®
TRIP SPEED
1. Determine the maximum speed the
Airmotor will need to run.
2. Add 15 cycles per minute to this
maximum required speed. WARNING
3. Loosen the lock screw.
4. Rotate the bleed knob to the correct
setting as follows:
Maximum
Airmotor Bleed Knob
Speed Setting
0-20 cycles/min. Low
20-50 cycles/min. Medium
50-75 cycles/rein. High
5. Turn lock screw until it contacts spring
washer, then tighten additional 1/2
turn.
6. Test unit in normal use to insure
setting is not too low. If Air Brake”
stops Airmotor during normal
operation, increase the setting.
NOTE: Air Brake® is disabled when
bleed knob is set on the run
setting.
Always shut off air supply
before servicing Airmotor. An
Airmotor in the tripped con-
dition is under pressure and
may restart unexpectedly for
one or two cycles.
AIR BRAKE® RESETTING
INSTRUCTIONS
If the Airmotor runs faster than the
preset speed, the Air Brake® will stop
the airmotor with the pump plunger in
the down position. The Trip Indicator
piston extends to indicate that the Air
Brake® has been triggered and IS
preventing Airmotor operation.
To reset the Air Brake®:
1. Shut off air supply to Airmotor.
2. Press flush reset button with ascrew-
driver (located on right side of Relay
Valve -Item 17) until Air Brake® shifts
and Indicator button retracts.
3. Wait two full minutes to insure all
residual pressure vents off.
4. Turn on air supply. Airmotor will
now restart.
TROUBLESHOOTING
Problem Possible Cause Solution I
Airmotor does not operate, air escaping Restricted or inadequate air supply. I
from exhaust. Check air supply and adjust to minimum
recommended level. Check air supply
hose diameter and change it to minimum
recommended size (see specifications).
Check size of FRL and quick disconnect
coupling. Replace if too small or
restricted.
Erratic or accelerated operation with Dirty or damaged Relay Valve (Item 17) or Check valves and clean if necessary.
short stroking. Air Signal Valve (Item 20). Replace any damaged or worn parts.
Air Brake® “trips” off even though Bleed groove clogged in Bleed Assembly Remove bleed assembly and check
airmotor is running below set trip speed. (Item 67). bleed groove for foreign matter. If found,
(Runs three strokes or more before
stopping.) disassemble entire Air Brake® for cleaning
and replace air line filter.
Air Brake® “trips” very quickly after Leaking Diaphragm (Item 58). Replace diaphragm.
airmotor is started (within 3strokes),
even though airmotor is running below Leaking Upper Gasket (Item 51). Replace Upper and Lower Gaskets
set trip speed. (Items 51 &53).
Upper piston Quad Ring (Item 64) is Replace quad ring.
leaking.
Bleed Hole(A) in clear washer not aligned Align Tab (C) of clear washer to Slot (D) in
with Bleed Hole (B) in Weed base. bleed base. (See illustration 9in Service
Assemblies and Kits.)
Air Brake” “trips” at proper speed Stop valve vent hole in Lower Body (Item
(indicated by the sound of air surging into Unclog vent hole in lower body.
54) is clogged. (See Detail A, page 4.)
diaphragm chamber), but airmotor does Stop Valve (Item 60) is damaged.
not stop. Check stop valve and replace if worn or
damaged.
Air Brake® will not trip even though Discharge Umbrella Seal (Item 63) is not Inspect and replace both umbrella seals
airmotor has been running above the trip closing properly. if damaged.
speed for more than 1minute. Diaphragm (Item 58) is not properly Reinstall diaphragm properly or replace if
installed, or is leaking due to damage. damaged.
Leaking Upper Gasket (Item 51) or Lower Disassemble Air Brake® and re-assemble
Gasket (Item 53). with new gaskets.
Stuck metering Pump Piston (Item 55). Increase air pressure to 100 PSI and try
again. If this fails, replace piston and
pump sleeve, including all rubber parts
(Items 55,56,62, 64&65).
Inlet Air Filter (Item 40) is completely or Clean or replace relet air filter.
partially clogged.
RETAIN THIS INFORMATION FOR FUTURE REFERENCE
When ordering replacement parts Iist Part Number, Description, Model Number and Series Letter.
LINCOLN provides aDistributor Network that stocks equipment and replacement parts.