Page Number - 2
Form 422891
PILE DRIVER
®
III PUMP ASSEMBLY
MODELS 84900, 84901 and 84902
TABLE OF CONTENTS
Safety........................................................................................2
Product Specification.................................................................2
Model Chart................................................................................2
Dimensions................................................................................3
Attaching Airmotor to Pumptube..................................................4
Operating Precautions................................................................4
Pump Priming.............................................................................4
Outlet Position Adjustment..........................................................4
Disassembly Procedure.............................................................5
SAFETY
Read and carefully observe these operating instruction before
operating the pump. The pump must be operated, maintained
and repaired exclusively by persons familiar with the operating
instructions. Operate the pump only after Safety instructions
and this Operation Manual are fully understood.
PRODUCT SPECIFICATIONS
Pump Stroke:
6 in. (152 mm)
Output per cycle:
84900
22 cu. in. (360 cc)
84901
17 cu. in. (278 cc)
84902
12 cu. in. (196 cc)
Operating Temperature:
-30°F to +160° F
(-34° C to +71°C)
Max. Recommended Speed:
75 Cycles/Minute
Output at 75 cpm:
84900
7.1 gpm (26.9 liter/min).
84901
5.5 gpm (20.8 liter/min.)
84902
3.9 gpm (14.8 liter/min.)
Wetted part materials:
Carbon steel, Bronze,
Polyurethane, Nitrile
Weight:
56 lbs. (25.4 kg.)
MODEL CHART
Pump
Pump
Airmotor*
Ratio
Maximum Delivery
Maximum Air
Tube
Model
Pressure
Pressure
2342
86810
42:1
4200 psi
(290 bar)
100 psi
(7 bar)
2325
84808
25:1
2500 psi
(172 bar)
84900
2352
84806
15:1
1500 psi
(104 bar)
2367
84804
7:1
1400 psi
(97 bar)
200 psi
(14 bar)
2374
84803
3:1
600 psi
(41 bar)
2355
86810
55:1
5500 psi
(379 bar)
100 psi
(7 bar)
2323
84808
35:1
3500 psi
(241 bar)
84901
2350
84806
20:1
2000 psi
(138 bar)
2365
84804
10:1
2000 psi
(138 bar)
200 psi
(14 bar)
2372
84803
4:1
800 psi
(55 bar)
2375
86810
75:1
7500 psi
(517 bar)
100 psi
(7 bar)
2322
84808
45:1
4500 psi
(310 bar)
84902
2349
84806
25:1
2500 psi
(172 bar)
2364
84804
12:1
2400 psi
(166 bar)
200 psi
(14 bar)
2371
84803
6:1
1200 psi
(83 bar)
*Refer to Airmotor Owner/Operator Manual, Section A50 Page 78.
GLAND PACKING DESIGN*
Many industrial type materials (sealants, adhesives, inks, etc.)
display a tendency to dry out and to build up on the pump
plunger rod. These hard dried out materials cause the gland
packing to wear rapidly, resulting in leakage and ultimate pump
failure The second problem is the gland seal exposure to high
pressure and in particular, to pressure fluctuation during pump
operation (stroke change over).
The gland packing design* of Pile Driver III pumps addresses
both problems:
Externally, a special spring type Metal wiper (Item 5) scrapes
built-up and dried material from the pump plunger before it is
pulled through the gland packing on the down stroke. In order
to help the metal wiper work longer and more efficiently, the
lube well of the pump should be filled with a fluid compatible
with the material being pumped.
Do not fill the lube well to full capacity, as the reciprocat
-
ing movement of the pump may draw fluid into the
airmotor.
Internally, a special Protection Sleeve (Item 9) with
concentric grooves creates a labyrinth path which reduces the
effects of internal pressure and stroke change over fluctuation
on the gland seal. In addition, a second internal wiper limits
gland seal exposure to the pumped material.
The combination of the metal wipers and the protection sleeve
results in longer gland seal life and prevents
leakage.
*U.S. Patent No. 4,976,192
