After unpacking, the pump should be checked for any damage that may have
occurred during shipment. Damage should be reported to the carrier
immediately.
The following items should be included within the shipping container:
1.2 UTILITIES / HOOK-UP
It is recommended that the pump be positioned within 15° from level to maintain
self-priming ability and pumping efficiency. Allow sufficient room for tubing
connectors. The pump mounts on a quick-change base for easy installation.
The pump has dual exhaust locations on the backside of the base. The exhaust
locations require 1/2” (12mm) minimum clearance behind the control base. Care
should be taken to elevate the pump whenever possible to help prevent flooding
when the pump is located in a wet bench plenum. For remote exhaust
connection see Section 1.5.
Air Inlet: 1/4” FNPT (3/8” Dia. [8mm] supply tube minimum).
Fluid Ports: Inlet/Outlet Fluid Fittings and Surge Suppressor require torqueing
during pump installation. See Section 2 for hook- up diagram and
torque values.
Air Supply: 20-80 psig (1.4 – 5.5 bar) clean dry air or nitrogen (see
ATTENTION: The pump should be operated with clean, dry air or nitrogen.
Particulate, water and oils in the air supply can damage the pump.
NOTE:
1. It is recommended that a filter be placed on the discharge side of the pump.
2. Although extensive efforts are made to deliver pumps to our customers
completely dry, new pumps may contain residual moisture from their final DI
water test.
Recommended Maximum Operating Levels: See Error! Reference source
not found.
Install seal into head.
Install probe assembly into head.
Thread probe cap into head hand tight only, no tool needed.
Connect fiber optic cable to sensor. NOTE: Minimize bends in fiber optic
cable to 2” radius minimum to help ensure optimum signal strength. NOTE:
Standard cable length is 15 ft. [4.57 meters].
Figure 1-2
1.4 PLC CONTROL SCHEMATIC
Shown below is an example of the fiber optic end of stroke detection for a Maxim
Pump. The Programmable Logic Controller (PLC) control schematic shown will
allow the Maxim to be controlled by a PLC. Some of the features that can be
programmed are:
Start and stop pump
Monitoring approximate flow rate
Leak sensing
High and low flow rate detection
Preventative maintenance counter
Cycle counting
Oscillator control override
NOTE: See examples of ladder logic programs in Section 4.10.
NOTE: See Surge Suppressor Operation Manual for detailed installation
instructions.
2.3 OPTIONAL LEAK SENSING
2.3.a Installation
Remove plug and seal from port. Probe is self-sealing.
Install probe assembly into leak sensor port.
Thread probe cap into port. (NOTE: Do not over tighten; damage to threads
will occur.)
Push protective tubing into probe cap.
Connect fiber optic cable to sensor (NOTE: Minimize bends in fiber optic
cable to 2” radius minimum to help ensure optimum signal strength.) Fiber
optic cable can be cut to desired length using the cable cutter provided.
2.3.b Sensor Signal Specifications
The sensor signal is normally closed. In the event of a leak, no light signal is
returned to the sensor.
NOTE: See your fiber optic sensor installation instructions for proper hook-up
and adjustment.
Pump air supply pressure should be regulated. (See : Pressure vs. Fluid
Temperature Chart)
Open the fluid suction (IN) line valve, if necessary.
Open the fluid discharge (OUT) line valve, if necessary.
Start with air regulator at low (> 20 psi) pressure setting. Increase pressure
to attain desired flow, up to the maximum rating (See Section 3.1).
Table 1: Consumption / Efficiency can be used to determine approximate air
consumption.
Refer to Troubleshooting, Section 5, if pump fails to start.
ATTENTION: Prolonged periods (>5 minutes) of dry running can damage critical
internal pump parts.
CAUTION: When handling potentially dangerous fluids under pressure,
the pump and its fittings should be placed in a compatible enclosure.
3.1 PERFORMANCE CHARTS
Pumping capacity is a function of air supply pressure and volume, suction head,
suction line restrictions, discharge head, discharge line restriction, and fluid
specific gravity and viscosity.
Table 1: Consumption / Efficiency
NOTE: Specification to be used to size regulators and control valves.
Trebor pump maintenance can be divided into two categories: air system
maintenance and fluid system maintenance. The purpose of air system
maintenance is to prevent air system failures such as stalling or erratic cycling.
The purpose of fluid system maintenance is to maintain suction and lift
capabilities.
Pump Rebuild Service
Trebor International provides a factory rebuild service for customers using Trebor
products. Trebor will rebuild any standard pump (exclusive of options). Please
contact Trebor International Sales Department for current rebuild pricing. The
fixed rebuild price includes a factory rebuild and parts equivalent to the standard
rebuild kit. Each factory rebuild comes with a new one-year warranty. Repairs
requiring more extensive part replacements will be quoted prior to proceeding
with the pump rebuild. If the pump has exceeded its useful life and cannot be
rebuilt, the customer may elect to purchase a new Trebor pump. If the customer
chooses not to rebuild or replace the pump, a $150.00 evaluation charge will be
required.
All returned pumps are to be shipped freight prepaid with a valid Purchase Order
for the cost of rebuild service. Please contact Trebor International prior to
returning your pump to obtain an RMA Number and Pump Return Data Sheet to
ensure proper safety precautions. Each pump will be evaluated and repaired
within 5 working days of the receipt of pump at Trebor facility.
4.1 PREVENTIVE MAINTENANCE SCHEDULE
The following maintenance schedule is recommended to optimize pump
performance and minimize failures. Certain operating conditions that require
more frequent maintenance intervals have been noted. In positive pressure inlet
conditions where suction or lift is not required, fluid system maintenance may be
extended.
Adhering to the recommended preventative maintenance schedule along with
periodic inspection of the pump will ensure continued efficient operation and
overall reliable pump performance.
It is recommended that the Preventive Maintenance Record (Section 4.1.a) be
copied, maintained and kept with this unit for future reference.
To help remove potentially dangerous chemicals prior to service or shipment, the
pump should be flushed with DI water or disassembled and thoroughly cleaned.
Allow DI water to flush through the inlet and out the outlet to prevent pressure
build up.
gear, including safety glasses.
4.7 DISASSEMBLY
During the life of the pump it will be necessary to perform certain preventative
maintenance procedures to ensure its continued high performance. This section
and the next (4.8 Assembly) are provided for the user’s convenience in
disassembly and re-assembly procedures.
CAUTION: When handling pump wear appropriate personal protection
Page 17
Loosen and remove probe caps (Probes included with E Model only) from
heads using 3/4” slotted pin tool.
Remove probe assemblies (Probes included with E Model only) from heads.
Remove seals.
Loosen quick grip nuts on the transfer tubes from the pump base using
13/16” open-end wrench.
Remove pump assembly from the pump control base.
Immerse or flush the pump assembly using DI water and a neutralizing agent.
Install mounting fittings in pump adapter ports and lock body into bench
mounting fixture. NOTE: Securely attach mounting fixture to work surface
using hardware provided.
Figure 4-1
Remove the transfer tubes from pump heads (using latex gloves).
Figure 4-2
Using strap wrench, turn union nuts counter-clockwise to remove.
Remove head and check diaphragms for cracks or cuts.
To remove diaphragms; slit diaphragm with a sharp knife and pull the
diaphragms from the grooves. (Do not pry on diaphragm seal groove, as
this will damage the sealing surface.)
Unscrew push plate from the shaft in a counter-clockwise direction. Pull
other push plate and shaft from pump body.
4.7.a Body Disassembly
Remove suction plugs and seal on bottom of pump body using 1” pin tool.
Remove suction seat using 1” pin tool.
Remove ball and O-ring.
Unscrew suction check using 1” pin tool turning it counter-clockwise.
Remove second set of O-rings and balls and pull out discharge check cage.
Remove shaft seals from pump shaft seal groove in the center of the shaft
bore using the tip of a razor knife. Take care not to damage the shaft bore.
NOTE: Do not reuse seals.
Remove damper plug and seal using 3/4” pin tool.
4.7.b Control Base Disassembly
Unlock control base from quick-change mount by pulling out lever on front of
base to unlock mount. Then slide base back until it stops. Lift base off
mount.
Using pH test strips evaluate whether base has any contamination in air
passages especially the muffler area. If present, neutralize using best
methods prior to disassembly.
Unscrew and remove muffler assembly from each chamber using the 1” pin
tool.
Unscrew and remove quick exhaust port in each chamber using the 1/2” pin
tool.
Remove quick exhaust seals from cavity.
4.7.c Cleaning
Gently spray clean or dunk rinse all components with DI water to remove any
trace materials remaining after disassembly.
4.8 ASSEMBLY
Prior to beginning assembly, inspect all parts to ensure they are clean and dry.
Wear clean protective gloves. Precautions should be exercised to prevent
contaminating any of the air chamber surfaces with chemicals during handling.
4.8.a Control Base Assembly – Quick Exhaust
Insert the quick exhaust seal as shown below.
Insert the quick exhaust port in each head as shown using the 1/2” pin tool,
Install muffler assembly using the 1” pin tool, torque to 40in-lbs.
4.8.b Body Assembly
Install seal and damper plug into body using 3/4” pin tool, torque to 50in-lbs.
Remove pump from assembly fixture.
Turn pump upside down to access check bores.
Install discharge check cage into bore making sure small end fits into relief in
bottom of bore.
Drop ball into check cage, then O-ring.
Install suction sleeve into the bore; tighten using 1” pin tool. Tighten until
engagement with O-ring is achieved, then unthread the sleeve a quarter turn.
Do not over tighten as damage may occur.
Install second ball into check cage, then O-ring.
Install suction seat using the 1” pin tool. Tighten until engagement with O-ring
is achieved, then unthread the seat a quarter turn.
Install check seal onto check bore shoulder and thread suction plug into bore
using 1” pin tool, torque to 60in-lbs.
Repeat for the second bore.
Install two shaft seals in shaft bore groove with slits 180 apart.
Thread push plate onto main shaft until engagement with the shaft shoulder
is achieved. Additionally apply a ¼” turn to ensure proper installation.
Thread shaft onto shaft insert tool and insert shaft into bore.
Remove shaft insert tool and thread second push plate until engagement with
the shaft shoulder is achieved. Additionally apply a ¼” turn to ensure proper
installation.
4.8.c Final Assembly
Reattach pump to assembly fixture.
Attach union nut to one side of pump body (hand tight). Do not install
diaphragm on this step. This will protect body during initial pump assembly.
Remove pump from the assembly fixture.
Place pump body with union nut down and place two diaphragms, removing
all air from between diaphragms, with “V” groove point toward the body.
Install head on body. Note tab alignment and orientation of transfer tube
ports in head.
Install union nut on pump while gently pressing down on the head to engage
tabs in head and body, spin union nut down hand tight.
Turn pump over and remove union nut to install diaphragms.
Repeat diaphragm, head and union installation.
Lock body into mounting fixture.
Using strap wrench, torque union nuts slowly to 75 ft-lbs with the wrench at
Start with air regulator at low (< 15 psi) pressure setting.
Pump must prime once pressure is increased
60 psig Supply Pressure
Check for fluid leaks, listen for air leaks, check for irregularity
4.9.b 80/80 Leak Test
While cycling the pump supply 80 psi air
Close the discharge valve to create deadhead conditions
Leave at this condition for 2 minutes and check for air or fluid leaks
If a leak is witnessed, repair/replace components as necessary
Open discharge valve and expel the remaining DI water
Prepare the pump for drying
4.9.c Dry Pump
Connect vacuum hose to discharge line
Connect purge line to fluid inlet
60 psig Supply Pressure
Cycle pump & vacuum dry by rotating pump side to side for 30 seconds.
Turn off Air Supply and allow the pump to purge for 5 minutes.
4.9.d Dry Suction
20 psig Supply Pressure Target
Record Suction Value
Target = 12in-Hg
The following sample ladder logic is provided as a reference to assist in customer
programming of a PLC for either pneumatic oscillation or optic end-of-stroke
pump control. Your PLC may require different ladder logic.
4.10.a Oscillator Control (No Probes Required)
M8002 IS ON DURING 1RST SCAN
!
M8000 IS ON WHEN PLC IS POWERED & RUN MODE
!
!M8002
!
0 +-I I--------------------------------------------------------[SET
M8028]+
!ON
10MS !
!PLS
CLOCK !
!
!
!
!
!M8000 X0
K100 !
3 +-I I---I I-------------------------------------------------------(T42 )+
!PLC CTRL
OSC !
!ON
SPEED !
!
!
!
!
!M11 Y1
!
8 +-I I--------------------------------------------------------------(
)--+
!ON A
PUMPA !
!
!
!
!
!M12 Y2
!
10 +-I I--------------------------------------------------------------(
)--+
!ON B
PUMPB !
!
!
!T42
!
12 +-I I--------------------------------------------------------[ALT
M10 ]+
!OSC
!
Insufficient air volume (low supply
pressure during running).
See Performance Charts (3.1) for requirements. Check
for both regulator and control valve capabilities.
Fluid discharge line blocked.
Downstream valve closed, filter plugged
or other obstruction.
Remove obstruction.
Probe failure (E Model only).
Check fiber optic probes for correct operation.
Check external controller.
Check for excessive bends in fiber optic cable.
Clean or trim fiber optic cable at the sensor.
Bubbles in Fluid Discharge
Cause:
Solution:
Leaking fluid inlet fitting.
Replace adapter seal.
Leaking main seal.
Tighten union nut to 75 ft-lbs. or replace diaphragms, and
check head and body seal grooves for nicks or scratches.
Pump inlet line pressure reached
saturation point (due to high suction
requirement).
Increase diameter of suction supply line (reduces
restriction).
Reduce output flow.
Ruptured (perforated) diaphragm.
Replace diaphragms.
Check bore caps leaking.
Tighten check bore caps or replace seals.
Fluid Leaks
Cause:
Solution:
Union nut torque not enough to create
seal.
Tighten union nuts to 75 ft-lbs.
Leaking main seal.
Replace diaphragms.
Check head and body seal grooves for nicks or scratches.
Check bore cap.
Tighten, or remove and replace seal.
Ruptured diaphragm(s) can result in
fluid leaks through air exhaust port.
Replace diaphragms, and any parts that may have been
damaged by fluid exposure.
Erratic Cycling
Cause:
Solution:
Air line or fittings leak in external
controller.
Replace tubing or tighten fittings.
Replace controller.
Suction line restricted (cavitation).
Reduce fluid restriction.
Quick exhaust seal not sealing.
Check for particles between seal and port. Replace seal.
Check ball(s) not seating.
Check O-rings for damage; replace if necessary.
Make sure check balls move freely in sleeves.
Transfer tube leaking.
Tighten transfer tubes and quick grip nuts as described in
Section .