BLACKMER GDP 102 Manual

BLACKMER GLOBAL DISPENSER PUMP
OPERATION AND MAINTENANCE INSTRUCTIONS
WITH PARTS LIST
MODEL: GDP
964800
INSTRUCTIONS AND
PARTS LIST NO. 1701-A00
Page 1 of 12
Section 1701
Effective February 2004
Replaces October 2003
TABLE OF CONTENTS Page
SAFETY DATA ..................................................................1-2
OPERATION.........................................................................2
Pressure Control Valve (PCV) Adjustment............2
MAINTENANCE ..................................................................2
Draining Pump.......................................................2
Strainer/Check Valve Removal..............................2
Strainer/Check Valve Installation...........................3
Pressure Control Valve (PCV) Removal................3
Pressure Control Valve (PCV) Installation.............3
Pump Cartridge Removal......................................3
Pump Cartridge Installation ...................................4
Sump Float Removal.............................................4
Sump Float Installation..........................................4
OIML Switch Removal...........................................5
OIML Switch Installation........................................5
REPAIR KITS PARTS LIST - Standard Flow Pumps...5
REPAIR KITS PARTS LIST - UHF Pumps ...................6
PUMP PARTS LISTS..............................................7-10
Models 102 & 201..................................................7
Model 206 ......................................................................8
Models:...........................................................................
M00955B107, 203, 204, 207, 208, 705, & 707..9
Model UHF : M00955B602, & 605..........................10
PUMP TROUBLESHOOTING..........................................11
NOTICE:
Blackmer GDP pumps MUST only be installed in
systems which have been designed by qualified
engineering personnel. The system MUST conform to
all applicable local and national regulations and safety
standards.
This manual is intended to assist in the operation and
maintenance of the Blackmer GDP pump, and MUST
be kept with the pump.
Blackmer GDP pump service shall be performed by
qualified technicians ONLY. Service shall conform to
all applicable local and national regulations and safety
standards.
Thoroughly review the pump instructions and hazard
warnings, BEFORE performing any work on the
Blackmer GDP pump.
Maintain ALL system and Blackmer GDP pump
operation and hazard warning decals.
SAFETY DATA
NOTE: Numbers in parentheses following individual parts
indicate reference numbers on the corresponding Blackmer
Parts List.
This is a SAFETY ALERT SYMBOL.
When you see this symbol on the product, or in the manual, look for
one of the following signal words and be alert to the potential for
personal injury, death or major property damage.
Warns of hazards that WILL cause serious personal injury,
death or major proper ty damage.
Warns of hazards that CAN cause serious personal injury,
death or major property damage.
Warns of hazards that CAN cause personal injury
or proper ty damage.
NOTICE:
Indicates special instructions which are very
important and must be followed.

2
FAILURE TO RELIEVE SYSTEM
PRESSURE PRIOR TO PERFORMING
PUMP SERVICE OR MAINTENANCE
CAN CAUSE PERSONAL INJURY OR
PROPERTY DAMAGE.
Hazardous pressure
can cause personal
injury or property
damage.
Hazardous fluids can
cause fire, serious
personal injury or
property damage.
USE CARE WHEN WORKING IN A
POTENTIALLY DANGEROUS
ENVIRONMENT OF FLAMMABLE
FUELS, VAPORS AND HIGH VOLTAGE.
FIRE OR EXPLOSION COULD RESULT
IN SEVERE INJURY OR DEATH.
SAFETY DATA
FAILURE TO DISCONNECT AND
LOCKOUT ELECTRICAL POWER
BEFORE ATTEMPTING MAINTENANCE
CAN CAUSE SHOCK, BURNS OR
DEATH.
Hazardous voltage.
Can shock, burn
or cause death.
OPERATION
Tools Required: 16 mm Socket Wrench
1. To INCREASE the pressure setting, turn the PCV cover
(13) inward or CLOCKWISE using a 16 mm socket wrench.
2. To DECREASE the pressure setting, turn the PCV cover
(13) outward or COUNTERCLOCKWISE using a 16 mm
socket wrench.
MAINTENANCE
NOTICE:
MAINTENANCE SHALL BE PERFORMED BY QUALIFIED
TECHNICIANS ONLY, FOLLOWING THE APPROPRIATE
PROCEDURES AND WARNINGS AS PRESENTED IN
THIS MANUAL.
DRAINING PUMP
The following procedure will drain the bulk of the fluid from the
pump. Residual fluid may remain in the pump.
Tools Required: 1/4 “ Allen Wrench
1. Remove the plug (11) directly to the right of the strainer
cover (19). This port may be used to monitor vacuum
2. Remove the plug (11) on the lower right face of the head
(9). Fluid will be emptied by removing this plug. Fluid
must be properly contained during draining procedure.
NOTE: Pump contains up to 0.5 liters of fluid.
DO NOT use this port to monitor system pressure
3. If sump drainage is desired, plug (11) near the mounting
hole on the left side of pump casing (1) may be removed.
4. Manually turn the pump pulley COUNTERCLOCKWISE to
aid in fluid removal.
5. Properly dispose of all fluid drained from pump.
6. After pump is drained, replace all plugs (11) using a non-
hardening pipe sealant. DO NOT use PTFE tape.
STRAINER / CHECK VALVE REMOVAL
Check valves (if equipped) should be replaced only if pump is
experiencing frequent prime loss, indicating the check valve is
not functioning. Check valve should be installed when tank
check valve is not available.
Always use strainers with or without check valves. Strainer
must be kept clean to ensure proper operation and pump life.
Tools Required: 5 mm Allen Wrench
1. Lower pump fluid level by removing the plug (11) located at
the right of the stainer cover and rotating the pump shaft
COUNTERCLOCKWISE approximately ten (10) turns.
NOTE: Removing the plug allows air to enter.
2. Remove the three (3) strainer cover screws (21).
3. Remove the strainer cover (19). Inspect cover O-ring (18)
for damage. If damaged, discard O-ring and replace.
4. Carefully pull out strainer (17). Keep strainer in a
horizontal position to avoid contaminating pump with
strainer debris. It may be necessary to use a small tool to
gently hook the inside of the metal strainer end cap.
5. If equipped, remove the inlet check valve assembly (16).
Inspect for cracked or otherwise damaged O-rings.
Replace if damaged.
6. Lift dome strainer (25) out from the bore (behind the check
valve assembly.)
PRESSURE CONTROL VALVE ADJUSTMENT
Pressure Control Valves (PCV) must be set to the desired
single hose operating pressure.
RETAINING RING (15) MUST BE IN
PLACE AT ALL TIMES DURING
PRESSURE CONTROL VALVE
ADJUSTMENT. PERSONAL INJURY OR
PROPERTY DAMAGE MAY OCCUR IF
RETAINING RING IS NOT INSTALLED.
DISCONNECTING FLUID OR
PRESSURE CONTAINMENT
COMPONENTS DURING PUMP
OPERATION CAN CAUSE SERIOUS
PERSONAL INJURY, DEATH OR MAJOR
PROPERTY DAMAGE.
Hazardous pressure
can cause
personal injury or
property damage.
Hazardous pressure
can cause
personal injury or
property damage.

MAINTENANCE
3
STRAINER / CHECK VALVE INSTALLATION
1. If equip with check valve option, insert dome strainer (25)
into bore as shown on figure 1.
2. Clean debris from check valve, especially at the O-ring
seats.
3. Lubricate O-ring before installing in check valve assembly.
4. Insert check valve assembly (16) or check cap (30) into
corresponding pump bore as shown in Figure 1. Press
assembly squarely over receiving cylindrical surface until
O-ring seats firmly over the surface and holds assembly in
position.
5. Insert new or cleaned strainer (17) into bore, over check
valve assembly.
6. Clean debris from strainer cover O-ring groove and install
O-ring (18). If O-ring does not stay in place, use a small
amount of all purpose grease to hold the O-ring in groove.
7. Install strainer cover (19) with screws (21). Hand tighten,
alternating between each screw to keep the cover parallel
to the casing face. Torque the screws to 150 lbs-in (17
Nm). DO NOT OVERTIGHTEN.
8. Replace the plug (11) in the hole located to the right of the
strainer cover.
PRESSURE CONTROL VALVE REMOVAL
Excessive wear on the pressure control valve (PCV) can
cause improper pump performance, including flow loss or
excessive or low discharge pressure.
Tools Required: Large Snap Ring Pliers
16 mm Socket Wrench
1. Drain the pump following the procedure outlined under the
“Draining Pump” section.
2. Remove the snap ring (15).
3. With a 16 mm socket wrench, turn the valve cover (13)
outward or COUNTERCLOCKWISE until completely
removed.
4. Remove the spring (12) and valve (10).
5. If valve did not come out with the spring, use a needle
nose pliers to remove it from the bore.
PRESSURE CONTROL VALVE INSTALLATION
1. Inspect valve for damage or excessive wear. Replace if
necessary.
2. Install pressure control valve in reverse order of removal.
Refer to Figure 2. Apply a light application of grease on
the cover O-ring (14) to help keep the O-ring from being
damaged during installation.
NOTICE:
Modification of pressure control valve or failure to
correctly install all components of the pressure control
valve will void any regulating agency recognition
applicable to this pump.
3. When pump is operating at full speed, discharge pressure
must NOT exceed 50 psi (3.5 bar) with any discharge
restriction (fully open to fully close discharge). If the
pressure exceeds 50 psi (3.5 bar), refer to “Pressure
Control Valve Adjustment” procedure in the Operation
Section of this manual.
Figure 2 - Pressure Control Valve
PUMP CARTRIDGE REMOVAL
Damage or excessive wear to pump cartridge can cause low
suction, low flow, lock-up or excessive noise.
Tools Required: Large Snap Ring Pliers
16 mm Socket Wrench
5 mm Allen Wrench
13 mm Socket Wrench (or 1/2” Socket Wrench)
Rubber mallet (optional)
1. Drain the pump following the procedure outlined under the
“Draining Pump” section.
2. Remove belt and pulley.
3. Remove strainer, check valve, and pressure control valve
Refer to “Strainer/Check Valve Removal” and “Pressure
Control Valve Removal” for disassembly instructions.
4. Remove the ten (10) head capscrews (5).
5. Slightly rotate the head (9) counterclockwise around pump
cartridge to give exposed edges to grasp.
6. Remove head (9) from pump casing.
7. If the pump cartridge (7) comes off with head, remove by
rotating and pulling the cartridge from the head bore.
Valve (10)
Spring (12)
Valve Cover (13)
Cover O-ring (14)
Snap
Ring (15)

MAINTENANCE
8. If the cartridge remains in the pump casing, grasp the shaft
and/or liner and pull while slightly turning back and forth. If
necessary, GENTLY tap around the circumference with a
rubber mallet to loosen the cartridge assembly. Be sure to
keep it concentric with the bore. DO NOT PRY THE
CARTRIDGE OUT AGAINST THE SIDE WALLS AS THE
GASKET SEAL SURFACE WILL BE DAMAGED.
PUMP CARTRIDGE INSTALLATION
1. Install the wave spring (6) in the cartridge bore with the
dowel pin hole exposed by the gap in the wave spring.
2. Lightly grease the lip seal O-rings.
3. Align the pump cartridge dowel pin with the dowel pin hole
and slide in the pump cartridge (7). If the pin is in the hole,
you should be able to rotate the cartridge very lightly back
and forth and feel the positive stops. The wave spring
deflection will also be felt when the cartridge is pressed in
axially. PUMP WILL NOT BUILD IF THE CARTRIDGE PIN
IS NOT IN THE HOLE.
4. Insert provided guides into screw holes. The guides will
orient gasket as well as hold it in position.
5. Install the head gasket (8). If needed, apply a thin film of
motor oil onto the mating surface to affix areas of the
gasket that do not retain their position.
6. Carefully install the head (9) over the cartridge. Push head
in until it comes approximately 1/4” from the casing face.
7. Carefully replace guides with head screws, threading each
of them in a few turns.
8. Alternating between the four screws closest to the shaft,
draw in the head approximately one turn on the screw at a
time in order to keep the head parallel to the casing.
NOTE: Screws will become very tight if faces are not kept
parallel. If necessary, go back to step 3 and check to
ensure the cartridge pin is still aligned with the hole.
9. Once the head is fully drawn in, torque the four screws to
200 lbs-in (23 Nm).
10.Before tightening the remaining head screws, check that
the pump shaft turns freely and uniformly. If so, tighten the
remaining screws to 200 lbs-in (23 Nm).
11. Reinstall inlet check valve, strainer and pressure control
valve according to previous instructions.
SUMP FLOAT REMOVAL
Pump will have poor suction or sump overflow if sump float
mechanism is worn or damaged
Tools Required: 13 mm Socket Wrench (or 1/2” Socket Wrench)
4 mm Allen Wrench
1. Drain the pump following the procedure outlined under the
“Draining Pump” section.
2. Remove the pump from the dispenser per dispenser
installation instructions.
3. Remove the ten (10) sump cover screws (5).
4. Lift off the sump cover (4) and gasket (3). Inspect gasket
and replace if worn or damaged.
5. The sump return float mechanism should operate freely. At
full down position, the float valve should center and seat
against the rubber seal surface. If it does not seat, or parts
are worn or damaged, remove the sump float assembly
and replace.
The sump overflow float mechanism (if present) should
operate freely. The float valve should center and seat
against the rubber seal surface when float is lifted straight
up.
Either the sump float assembly (2) or the sump overflow
float mechanism (23) can be removed by removing the two
sump base mounting screws (24).
SUMP FLOAT INSTALLATION
1. Install the sump return float assembly (2) or sump overflow
float assembly (23), holding the mount to the casing with
one finger and inserting the two screws (24) with the other
hand. Take care the rubber washer has not fallen out and
is properly seated in the recess of the float assembly
mount. See Figure 4.
2. Tighten the screws (24) to a torque of 18 lbs-in (2 Nm).
3. Check float mechanism. It should operate freely.
At full down position, the sump return float valve should
center and seal against the rubber seal surface.
The sump overflow float assembly should seat when the
float is fully elevated.
Figure 3 - Pump Cartridge
4
Wave Spring (6)
Pump Cartridge (7)
Head Gasket (8)

KIT NO. DESCRIPTION PARTS INCLUDED IN KIT
Ref. No. Part Description Part No.
894860 Inlet Strainer Kit* 17 Strainer 724890
18 O-Ring, Strainer Cover 702332
894861 Check Valve Kit* 16 Check Valve Assembly 894840
18 O-Ring, Strainer Cover 702332
25 Strainer, Dome 724893
894862 Inlet Strainer/Check Valve Kit* 16 Check Valve Assembly 894840
17 Strainer 724890
25 Strainer, Dome 724893
18 O-Ring, Strainer Cover 702332
894877 Pressure Control Valve Kit 10 Pressure Control Valve (PCV) 454800
12 Spring, PCV 474865
14 O-Ring, PCV Cover 702335
15 Retaining Spring 903621
894866 Pump Cartridge Kit 6 Wave Spring 903408
7 Pump Cartridge 894805
8 Gasket, Head 384860
18 O-Ring, Strainer Cover 702332
14 O-Ring, PCV Cover 702335
20 Key, Shaft 909152
15 Retaining Ring 903621
- - Pin - Gasket Guide 574861
724894 Inspection Kit 8 Gasket, Head 384860
18 O-Ring, Strainer Cover 702332
14 O-Ring, PCV Cover 702335
724896 Overflow Check Valve Kit 23 Float Asy, Sump Overflow 384850
24 Capscrew 924018
3 Gasket Sump 384862
894878 Float Assembly Kit 2 Float Asy, Sump 894876
24 Capscrew 924018
3 Gasket Sump 384862
REPAIR KITS PARTS LIST
FOR STANDARD FLOW PUMPS
MAINTENANCE
4. Install the sump cover gasket (3). Correctly position the
gasket onto all sealing surfaces.
5. Lower the sump cover (4) gently into place over the gasket
with the pins aligned so as not to move the gasket.
6. Install and tighten the center-most sump cover screw (5) to
200 lbs-in (23 Nm).
7. Install the remaining sump cover screws and tighten to 200
lbs-in (23 Nm), alternating in a cross pattern.
OIML SWITCH REMOVAL
Tools Required: 19mm (or 3/4”) Wrench, Wire Cutters
1. Cut and remove tamper resist wire.
2. Rotate (CCW) OIML Switch Asy. (22) off with wrench.
Take special care that no debris falls into port upon
removal.
OIML SWITCH INSTALLATION
1. Apply very thin film of thread sealing compound onto
thread beginning about 3mm from the end. (Thread
sealing tape is not advised as it may cause contamination.)
2. Rotate (CW) OIML Switch Asy. (22) threads into sump vent
port by hand and tighten firmly with wrench. Again, take
care that no debris or loose thread compound fall into
sump vent port.
3. Secure new tamper resist wire through appropriate holes in
the switch body and pump casing tab.
5
*Not available for Models M00955B102 and M00955B201.

REPAIR KITS PARTS LIST
FOR UHF PUMPS
KIT NO. DESCRIPTION PARTS INCLUDED IN KIT
Ref. No. Part Description Part No.
894865 Inlet Strainer Kit, UHF 17 Strainer, UHF 724895
18 O-Ring, Strainer Cover 702332
894861 Check Valve Kit 16 Check Valve Assembly 894840
18 O-Ring, Strainer Cover 702332
25 Strainer, Dome 724893
894867 Inlet Strainer/ 16 Check Valve Assembly 894840
Check Valve Kit, UHF 17 Strainer, UHF 724895
25 Strainer, Dome 724893
18 O-Ring, Strainer Cover 702332
894868 Pressure Control Valve Kit, 10 Pressure Control Valve (PCV), UHF 454810
UHF 12 Spring, PCV, UHF 474870
14 O-Ring, PCV Cover 702335
15 Retaining Spring 903621
894870 Pump Cartridge Kit, UHF 6 Wave Spring 903408
7 Pump Cartridge, UHF 894806
8 Gasket, Head 384860
18 O-Ring, Strainer Cover 702332
14 O-Ring, PCV Cover 702335
20 Key, Shaft 909152
15 Retaining Ring 903621
- - Pin - Gasket Guide 574861
724894 Inspection Kit 8 Gasket, Head 384860
18 O-Ring, Strainer Cover 702332
14 O-Ring, PCV Cover 702335
724896 Overflow Check Valve Kit 23 Float Asy, Sump Overflow 894850
24 Capscrew 924018
3 Gasket Sump 384862
894878 Float Assembly Kit 2 Float Asy, Sump 894876
24 Capscrew 924018
3 Gasket Sump 384862
6

REF. NO. DESCRIPTION OF PARTS QTY. PART NO.
1 Casing, Pump 1 **
2 Float Assembly, Sump (Std) 1 894876
3 Gasket, Sump 1 384861
4 Sump Cover Assembly 1 **
5 Screw, Taptite 20 924002
6 Wave Spring* 1 903408
7 Pump Cartridge* 1 894805
8 Gasket, Head* 1 384860
9 Head 1 **
10 Pressure Control Valve (PCV)* 1 454800
11 Plug 3 908200
12 Spring, PCV* 1 474865
13 Cover, PCV 1 414800
14 O-Ring, PCV Cover* 1 702335
15 Retaining Ring* 1 903621
16 Check Valve Assembly 1 **
17 Strainer 1 **
18 O-Ring, Strainer Cover* 1 702332
19 Cover, Strainer 1 **
20 Key, Shaft* 1 909152
21 Capscrew 3 924021
22 OIML Switch Asy.(Optional) 1 894830
23 Float, Sump Overflow Assembly (Opt) 1 894850
24 Capscrew 2-4 924018
PUMP PARTS LIST- MODELS 102 & 201
**Not a saleable item. *Included in one or more repair parts kits.
7

PUMP PARTS LIST - MODEL 206
8
REF. NO. DESCRIPTION OF PARTS QTY. PART NO.
1 Casing, Pump 1 **
2 Float Assembly, Sump (Std) 1 894876
3 Gasket, Sump* 1 384861
4 Sump Cover Assembly 1 **
5 Screw, Taptite 20 924002
6 Wave Spring* 1 903408
7 Pump Cartridge* 1 894805
8 Gasket, Head* 1 384860
9 Head 1 **
10 Pressure Control Valve (PCV)* 1 454800
11 Plug 3 908200
12 Spring, PCV* 1 474865
13 Cover, PCV 1 414800
14 O-Ring, PCV Cover* 1 702335
15 Retaining Ring* 1 903621
16 Check Valve Assembly* 1 894840
17 Strainer* 1 724890
18 O-Ring, Strainer Cover* 1 702332
19 Cover, Strainer 1 034863
20 Key, Shaft* 1 909152
21 Capscrew 3 924021
22 OIML Switch Asy.(Optional) 1 894830
23 Float, Sump Overflow Assembly (Opt) 1 894850
24 Capscrew 2-4 924018
25 Strainer, Dome* 1 724893
26 Sleeve, PCV 1 **
27 Seal Plug 1 **
28 Tube, Vortex 1 **
29 Plug 1 908202
30 Check Cap 1 724842
**Not a saleable item. *Included in one or more repair parts kits.

PUMP PARTS LIST - STANDARD FLOW PUMPS
MODELS M00955B107, 203, 204, 207, 208, 705, 707
9
REF. NO. DESCRIPTION OF PARTS QTY. PART NO.
1 Casing, Pump 1 **
2 Float Assembly, Sump 1 894876
3 Gasket, Sump* 1 384862
4 Sump Cover Assembly 1 **
5 Screw, Taptite 21 924002
6 Wave Spring* 1 903408
7 Pump Cartridge* 1 894805
8 Gasket, Head* 1 384860
9 Head 1 **
10 Pressure Control Valve (PCV)* 1 454800
11 Plug 3(4) 908200
12 Spring, PCV* 1 474865
13 Cover, PCV 1 414800
14 O-Ring, PCV Cover* 1 702335
15 Retaining Ring* 1 903621
16 Check Valve Assembly* 1 894840
17 Strainer* 1 724890
18 O-Ring, Strainer Cover* 1 702332
19 Cover, Strainer 1 034863
20 Key, Shaft* 1 909152
21 Capscrew 3 924021
22 OIML Switch Assembly 1 894830
23 Float, Sump Overflow Assembly 1 894850
24 Capscrew 4 924018
25 Strainer, Dome* 1 724893
26 Sleeve, PCV 1 **
27 Seal Plug 1 **
28 Tube, Vortex 1 **
29 Plug 1 908202
30 Check Cap 1 724842
**Not a saleable item. *Included in one or more repair parts kits.

PUMP PARTS LIST - UHF PUMPS:
MODELS 602 AND 605
10
REF. NO. DESCRIPTION OF PARTS QTY. PART NO.
1 Casing, Pump 1 **
2 Float Assembly, Sump 1 894876
3 Gasket, Sump* 1 384861
4 Sump Cover Assembly 1 **
5 Screw, Taptite 21 924002
6 Wave Spring* 1 903408
7 Pump Cartridge* 1 894806
8 Gasket, Head* 1 384860
9 Head 1 **
10 Pressure Control Valve (PCV)* 1 454810
11 Plug 4 908200
12 Spring, PCV* 1 474870
13 Cover, PCV 1 414800
14 O-Ring, PCV Cover* 1 702335
15 Retaining Ring* 1 903621
16 Check Valve Assembly* 1 894840
17 Strainer* 1 724895
18 O-Ring, Strainer Cover* 1 702332
19 Cover, Strainer 1 034863
20 Key, Shaft* 1 909152
21 Capscrew 3 924021
22 OIML Switch Assembly 1 894830
23 Float, Sump Overflow Assembly 1 894850
24 Capscrew 4 924018
25 Strainer, Dome* 1 724893
26 Sleeve, PCV 1 **
27 Seal Plug 1 **
28 Tube, Vortex 1 **
**Not a saleable item. *Included in one or more repair parts kits.

PUMP TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE
Pump not priming or 1. Suction line obstruction.
excessive time to prime 2. Air leak in suction line.
3. Clogged strainer (see “Strainer/Check Valve” section).
4. Pump speed too low (Check motor, pulleys and belt).
5. Damaged or missing strainer cover O-ring (see “Strainer/Check Valve” section).
6. Pressure Control Valve open, worn or not seated properly.
(See “Pressure Control Valve” section.)
7. Damaged O-ring on Check Valve or improperly seated Check Valve Assembly
(see “Strainer/Check Valve” section).
Reduced Capacity (Flow) 1. Pump speed too low (check motor, pulleys and belt).
2. Air leak in suction lines.
3. Restriction in suction lines.
4. Excessive system pressure (flow loss to pressure control valve).
5. Pressure control valve open, worn or not seated properly.
(See “Pressure Control Valve” section).
6. Worn or damaged pump cartridge (see “Pump Cartridge” section).
Noise 1. Inlet Restriction of:
a. Inlet piping.
b. Clogged strainer.
2. Excessive pump speed.
3. Pump inadequately fastened to the base plate.
4. Misaligned pulleys.
5. Improperly anchored piping.
6. Pressure control valve setting too high (see “Pressure Control Valve Adjustment”).
7. Excessive time with closed discharge line (full bypass with no flow).
8. Damaged pump cartridge (see “Pump Cartridge” section).
9. Excessive system pressure.
Leakage
Port 1. Loose piping.
2. Improperly applied pipe thread sealant.
Weep Hole 1. Damaged shaft seal O-ring.
2. Damaged shaft seal (see “Pump Cartridge” section)
Head or Sump Gasket 1. Damaged gasket.
2. Improperly torqued mounting screws.
Sump Overflow 1. Excessively foamy fuel (possible air in fluid).
2. Failure of sump float mechanism (see “Sump Float” section).
3. Failure of sump overflow check valve.*
Motor/Belt Overheating 1. Pump cartridge locked up.
2. Pressure Control Valve stuck closed.
3. Excessive speed.
4. Improper belt tightening or alignment.
5. Defective or damaged motor.
NOTICE:
MAINTENANCE SHALL BE PERFORMED BY QUALIFIED TECHNICIANS ONLY, FOLLOWING
THE APPROPRIATE PROCEDURES AND WARNINGS AS PRESENTED IN THIS MANUAL.
*Applies only to units equipped with the Overflow Check Valve option.
11

Sliding Vane Pumps: 5 to 2200 GPM
Refined Fuels, Liquefied Gases, Solvents,Process
Stainless Steel Sliding Vane Pumps
1 to 265 GPM: Acids, Brines, Sugars, Syrups,
Beer, Beet Juice, Cider, Flavor Extracts, etc.
System One®Centrifugal Pumps
10 to 7500 GPM; Process, Marine
Magnetic Drive Pumps
Stainless Steel: 14 to 215 GPM
HXL 6, 8 & 10”
Sliding Vane Pumps
130 to 2,220 GPM
Refineries
Terminals
Barges
Ships
Reciprocating Gas Compressors
Liquefied Gas Transfer, Boosting, Vapor Recovery
Hand Operated Pumps
Dispensing, Transfer, In-line
Accessories
Gear Reducers, Bypass Valves, Strainers
Visit www.blackmer.com for complete information on all Blackmer products
1809 Century Avenue, Grand Rapids, Michigan 49503-1530 U.S.A.
Telephone: [phone] • Fax: [phone]
E-mail: [e-mail] • Internet Address: www .blackmer.com