Hale 4DK Series - Manual (Page 21)

Manual p/n: 029-0020-79-0 21
4DK Series Pumps
SECTION 5 MAINTENANCE AND REPAIR
2. Where grease is called for, use a Lithium-
based grease with 1% to 3% Molybdenum
Disulfate. The following examples are
approved greases:
❑ Dow Corning BR2-PLUS
❑ Lubriplate-Fiske #3000
❑ Shell Super Duty Grease
❑ Imperial #777
❑ Mobil Grease Special
❑ Sunoco Moly #2EP
Also see Figure 5: "Recommended Oils"
on page 15.
3. When replacing fasteners, use the proper
nuts, bolts, and other hardware.
Many are specifically rated; that is, SAE
Grade 5 or higher and must be replaced
with the identical type. Apply a coating of
Loctite 246 High Temperature Remove-
able Thread Locker (or equal) before
installing.
4. It is recommended to use only Hale autho-
rized replacement parts for optimum safety
of the equipment and its operators.
5. When installing the mechanical seal, apply
a generous coating of Pac-Ease Rubber
Lubricant Emulsion (or equal) on the
rubber seal parts to ease installation.
WARNING !
THE PUMP AND GEARBOX WEIGH APPROXI-
MATELY 240 LBS. (109 KG). USE PROPER LIFT-
ING SUPPORT DEVICES CAPABLE OF HANDLING
THE LOAD WHEN REMOVING OR INSTALLING
PUMP AND GEARBOX ASSEMBLY.
OVERVIEW
This section describes the removal, inspection,
and reinstallation of the 4DK series pump and
components as required for maintenance and
repair.
Service should be performed by a trained and
qualified service technician, or your authorized
Hale Products service representative. Be sure
you have sufficient knowledge, experience, the
proper tools and Hale genuine replacement parts
before you attempt any repair maintenance.
For an illustrated pump overview, see heading
4DK Series Overview, beginning on page 38.
WARNING !
HALE 4DK SERIES PUMPS ARE DESIGNED TO
PUMP AIRCRAFT FUELS IN ADDITION TO DE-
MINERALIZED WATER (I.E., JP-4, JP-5, OR JP-8,
JET-A OR JET-B, KEROSENE, ETC.). PUMPING
OF FUELS IS INHERENTLY HAZARDOUS AND
CALLS FOR CAREFUL INSPECTION AND MAINTE-
NANCE OF EQUIPMENT. CHECK FOR LEAKS
AND HAZARDOUS CONDITIONS. WHEN SERVIC-
ING, REMOVE POTENTIAL FIRE AND EXPLOSION
HAZARDS FROM THE WORK AREA IN ACCOR-
DANCE WITH YOUR SAFETY REGULATIONS.
WHEN HANDLING FLAMMABLE PRODUCTS
ALSO FOLLOW ALL INSTRUCTIONS PROVIDED
WITH THE APPARATUS.
PROPER GROUNDING AND STATIC CONTROL
EQUIPMENT MUST BE INSTALLED, PROPERLY
MAINTAINED AND USED IN ACCORDANCE WITH
THE APPARATUS MANUFACTURER'S INSTRUC-
TIONS WHEN PUMPING FUEL.
GENERAL REPAIR GUIDELINES
1. Match, mark (tag), or note the orientation
of components before disconnecting or
removing them to aid in proper
reassembly.