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Page Number - 2

CENTRO-MATIC

® 

PUMP,

MODELS  84050, 85243 & 85460

4.1A-68430-D01

Form 403125

SAFETY

Read and carefully observe these operating instructions
before unpacking and operating the pump!  The pump must
be operated, maintained and repaired exclusively by persons
familiar with the operating instructions.  Local safety
regulations regarding installation, operation and
maintenance must be followed.

Operate this pump only after safety instructions and this
service manual are fully understood.

This symbol identifies the potential for a hazardous situation.
If this warning is not  followed, a serious injury could occur.

Please refer to the following service page for the Model
83513 pump for all other safety considerations:

83513 Pump - Form Number 10L083513000J0
85209 Control - Section C8, Page 262 Series

PRODUCT SPECIFICATIONS

Pump Ratio:

50:1

Output Per Cycle

0.55 in³ (9 cc)

Output Per Minute

30 in³ (492 cc)

Pump Air Supply Pressure

50 to 70 psi (3.4 to 4.8 bar

)

Operating Line Pressure

2500 psi Normal (172 bar)
3500 psi Maximum (241 bar)

Container Capacity

60 Lbs. Bulk (27 kg)

Air Consumption

4.3 CFM (120 l/min.)

Operating Temp. Range

-10° F to 140° F
(-23° C to  60° C)

Weight (84050)

58 lbs. (27 kg)

(85460, 85243

)

68 lbs. (31 kg)

DESCRIPTION

General Description

The Models 84050, 85243 and 85460 are pumping units
designed to operate centralized lubrication systems.  They
have a high volume output, delivering 30 cubic inches of
lubricant per minute at typical Centro-Matic

®

 pressures.

They are fully automatic when used with Model 85209
Control.  Pump is double acting, dispensing lubricant on
both the UP and DOWN strokes.  These units are designed
to be used with SL-1, SL-11, SL-32 and SL-33 series
injectors or a
combination of these.  The difference between the two
models is that the 85460 is equipped with a follower and a
low level indicator.

Appropriate Use

The pumps on these units are exclusively designed to
pump and dispense lubricants using compressed air
only.

The maximum specification ratings should not be
exceeded.

Any other use not in accordance with instructions will
result in loss of claims for warranty and liability.

PUMP OPERATION

Operation of 85209 with Model 85530 System
Controller

When Model 85530 times out, it will initiate a lube cycle.
The air solenoid is energized to deliver air to the pump and
air to the vent valve.  Pump begins dispensing lubricant
through injectors to the bearings.

When all bearings have received lubricant, pressure rises
in the system to actuate the pressure switch.  When
pressure switch actuates, the control is reset to de-energize
the solenoid valve cutting off air to the pump and vent valve.
Pump stops, pressure vents and pressure switch de-
actuates. Control begins timing toward next lube event.

INSTALLING THE PUMP

Place the unit in the approximate location making sure that
grease and air connections are accessible.  Mark center
locations of the six holes at the bottom of the reservoir.
Then drill six 1/2” holes.  The use of 7/16” bolts will offer
some flexibility in securing the reservoir to the equipment.

Lubricant outlet of pump should be connected to system with
suitable hose capable of 3,500 PSI working pressure.  Air line
connection should be made with at least 1/4” I. D. hose

Table of Contents

Page

Safety...............................................................................2
Specifications...............................................................................2
Description...........................................................................2
Pump Operation........................................................................2
Installing the Pump...................................................................2
Optional Devices...........................................................................3
Putting  Pump into Operation......................................................3
Maintentance and Repair..............................................................3
Dimensions............................................................................6
Repair Parts List.........................................................................7
Troubleshooting............................................................8

Summary of Contents for CENTRO-MATIC 84050

Page 1: ...Page Section C8 142P 4 1A 68430 D01 Form 403125 June 2001 CENTRO MATIC Model 84050 Series F Model85243 Caterpillar 178 6919 Model 85460 Series A AirOperatedPump ...

Page 2: ...to be used with SL 1 SL 11 SL 32 and SL 33 series injectors or a combination of these The difference between the two models is that the 85460 is equipped with a follower and a low level indicator Appropriate Use The pumps on these units are exclusively designed to pump and dispense lubricants using compressed air only The maximum specification ratings should not be exceeded Any other use not in ac...

Page 3: ...ermine where to look if problems occur See the sections below for replacement and repair of specific areas of the check valve vent valve or safety unloader valve Each part is identified with a number keyed to the matching part on the illustrated views General recommendations of tools required are also specified in each step Pay particular attention to the Warning statements to prevent personal inj...

Page 4: ...e After removing the follower assembly from the pump tube wipe off the excess grease which will allow clean access to the eight bolts that must be removed 6 Loosen and remove the eight nuts 70 on top of the follower 7 Remove the follower weight 71 and the wiper 69 Replace the wiper with a new one 8 Re assemble in the reverse of the above procedure making sure that the long bolts are staggered with...

Page 5: ...ve Assembly 10 Connect to Air Solenoid Valve 6 Connect to Pump 7 12 14 13 15 19 11 Connect to Junction Block 16 18 17 9 8 10 16 20 21 22 23 24 25 26 1 4 NPTF 1 4 NPTF 27 28 29 30 31 32 33 3 4 NPTF 3 4 NPTF 34 1 2 3 4 5 Vent Assembly 49 44 Model 84050 3 8 NPT Male Connect to Air Solenoid Valve 36 37 4 pcs install from bottom 47 3 4 NPT Male Connect to Lube System 63 49 42 46 41 8 Req d See Section ...

Page 6: ...381mm 54 55 ViewA A 31 Indicates Change 68 69 70 37 71 72 Follower Assembly 63 74 67 D D Section D D 20 40 13 9 353 mm Bolt Circle Dia 6 x 500 12 7 mm Dia A A 52 53 B B 50 51 19 483 mm Model 84050 shown Section B B 39 Ref 14 Ref 56 57 58 65 60 61 62 71 Ref 59 38 Ref 66 64 Section C C Model 85460 85243 Only ...

Page 7: ...et 31047 34 1 Valve Body 239336 35 1 Bare Pump Assembly 83513 36 4 Screw 50169 37 12 Lock Washer 66186 Item Qty Description Model No 84050 85243 85460 38 1 Cover 241085 39 1 Elbow 249533 40 8 Bolt 50015 41 8 Lock Washer 66220 42 1 Gasket 249355 43 1 Pipe Plug 67117 44 1 Gasket 33152 45 1 Container Assembly 242765 46 1 Pipe Plug 67224 47 1 Extension Tube 249356 48 1 Oil Seal 69383 49 1 Vent Assembl...

Page 8: ...is not operating Pump runs excessively Pump tube malfunction Refer to pump service page Outlet check damage or contamination Repair check or remove contamination Vent valve damage or contamination Repair vent valve or remove contamination System component leaking Repair leaks Injector bypassing Repair injectors Lubricant leaking from weep Pump tube malfunction Refer to pump service page hole of pu...

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