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DISASSEMBLY
Tools
Required
2-1/8"
Dia. Strap
Wrench
Retaining
Ring Pliers
(External)
Retaining
Ring Pliers
(Internal)
11/16"
Hex Wrench
7/8"
Hex Wrench
13/16"
Hex Wrench
1-3/8"
Hex Wrench
2-1/4"
Hex Wrench
Pliers
Procedure
1. Remove
Priming
Tube (Item 42) from
Adapter
Tube (Item 30).
2. Remove
Cotter
Pin (Item
40)
from
from
Priming
Plunger
(Item 39).
3. Remove
Priming
Shovel
(Item
41)
from
Priming
Plunger
(Item 39).
8. Remove
Retaining
Ring
(Item
31)
and
Guide
Washer
(Item
32) from
Check
(Item 36).
9. Remove
Retaining
Ring
(Item
33),
Packing
Washer (Item 34) and U-cup
Packing
(Item
35)
from
Check
(Item 36).
10. Remove
Lube
Cup
(Item
4) from
Gland
Nut (Item 6).
11. Remove
Bolt
Connector
(Item
1)
from
Plunger
(Item 3).
12. Pull Piston
Assembly
(Items
25,27
& 28) to remove
Plunger
(Item
3),
Connecting
Rod (Item
23), Adapter
(Item 24) and Piston
Assembly
from
Pump Tube (Item 21).
13. Remove
Pump Tube (Item 21) from
Outlet
Body (Item
12).
18. Remove
Outlet
Body (Item 19) from
Outlet
Body (Item
12).
19. Remove
Ball (Item
17), Check
Seat
(Item 16) and
Gaskets
(Item 15) from
Outlet
Body (Item
12).
20. Remove
Retaining
Ring
(Item
10),
Packing
Washer
(Item 9) and U-cup
Packing
(Item
8) from
Gland
Nut
(Item 6).
21. Remove
Piston
Adapter
(Item
25)
from Adapter
(Item 24).
22. Remove
Ball (Item 17) from Adapter
(Item 24).
23. Remove
Cotter
Pins (Item 22) from
Connecting
Rod (Item 23).
24. Remove
Adapter
(Item
24)
and
Plunger
(Item
3) from
Connecting
Rod (Item 23).
4. Unscrew
Adapter
Tube (Item 30) from
14. Remove
O-ring
(Item
20)
from
Pump Tube (Item 21) and slide off of
Outlet
Body (Item
12).
25. Unscrew
Piston
Adapter
(Item
25)
Piston
Assembly
(Items
25,
27
&
and remove
Piston
Collar
(Item 27)
28).
15. Remove
Gland
Nut
(Item
6) from
from Piston
Body (Item 28).
Outlet
Body (Item
12).
5. Remove
Priming
Plunger
(Item
39)
26. Remove
U-cup
Packings
(Item
26)
from
Piston
Body (Item 28).
16. Remove
Sleeve
(Item
11)
from
from
Piston
Adapter
(Item
25) and
Outlet
Body (Item
12).
Piston
Body (Item 28).
6. Remove
Check
Seat
(Item
38) and
O-ring
(Item
37) from
Adapter
Tube
17. Remove
Priming
Plug (Item 13) and
27. To
re-assemble
pump,
reverse
(Item 30).
and Adapter
(Item
14) from
Outlet
disassembly
procedure.
(Refer
to
Body (Item
12).
illustration
for torque
specifications.)
7. Remove
Check
Assembly
(Items
31,
32, 33, 34, 35, & 36) from
Adapter
Tube (Item 30).
TROUBLESHOOTING
Problem
Possible
Cause
Solution
Pump does not operate.
Restricted
or inadequate
air supply.
Check
air supply
pressure
and air hose
diameter
(see
Airmotor
manual
for
minimum
air supply
hose diameter).
Obstructed
material
output.
Check
output
line for restrictions.
Erratic
or accelerated
operation.
Pump is not primed.
Prime
pump (see "Pump
Priming"
instructions).
Insufficient
material
supply.
Refill
material
supply.
Material
is too heavy for priming.
Lower output with material
valve. Increase
pressure
to pressure
primer
(if in use).
Check
for inlet
restrictions.
Pump
operates
on "down"
stroke
only
Worn or damaged
Piston U-cups (Item 26)
Check
and replace
if needed.
(missing
"up"
stroke).
or Piston
Check
(Items
17 & 25).
Pump operates
on "up"
stroke
only
Worn or damaged
Inlet Check
(Items
36
Check
and replace
if needed.
(missing
"down"
stroke).
& 38).
Insufficient
material
supply.
Pump is not
Check
inlet for restrictions.
Lower output
intaking
enough
material
to dispense
on
with material
valve.
both strokes.
Pump
is operating
but
not dispensing
Inlet Check (Items 36
& 38) is not seating
Check
and replace
if needed.
material.
or is damaged.
OPTIONAL
PACKING
KITS
(Includes Items 8, 26 &
35)
86223
Teflon
Packing
Kit - For Models
84976
& 84977.
86224
Teflon
Packing
Kit - For Models
84978
& 84979.
86225
UHMW
Polyethylene
Packing
Kit - For Models
84976
& 84977.
86226
UHMW
Polyethylene
Packing
Kit - For Models
84978
& 84979.
86227
Viton
Packing
Kit - For Models
84976
& 84977.
86228
Viton
Packing
Kit - For Models
84978
& 84979.
PUMP
REPAIR
KITS
86229-
Includes
soft parts for Models
84976
& 84977.
86230-
Includes
soft parts for Models
84978
& 84979.
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