Revision 6
1.
Repair Procedures
The repair procedures are arranged as step-by-step instructions. Most procedures include
illustrations to assist the service personnel in repairing NLB Corporation Models 1312D,
1012D, 812D, 612D, 512D, 412D, 3.512D, 312D, 1060D, 860D, & 760D high pressure
water jetting units.
Repairs
of
various equipment operating systems, as well as assemblies and sub-assemblies,
are covered in this section. For additional reference in part identification, the service
personnel can also examine the exploded and/or cross section views and other illustrations
included elsewhere in this manual. (the individual component drawings in
Section
9:
PARTS
and the overall assembly drawings of the jetting unit in Section 3: PRODUCT OVERVIEW).
Accessories for the high pressure water jetting units are covered separately in their respective
manuals. Accessory manuals should be included in the binder. For more information,
contact NLB Customer Service Department
(Section 10: CUSTOMER SUPPORT for
procedure).
2.
Repair Tips
The following repair tips are offered to assist the service technician in making timely repairs:
• Make a routine daily inspection
of
the entire unit before operating (Section
5:
PREVENTIVE MAINTENANCE). Inspect all parts
of
the unit for abnormal
conditions.
If
a malfunction has occurred, then identify the cause (Section
6:
TROUBLE-SHOOTING), document the information, and correct the problem before
operating the unit.
• Read all
of
the information on the procedure that is involved before performing the
actual repair.
If
you have any questions, call the NLB Corp. Customer Service
Department (Section 10: CUSTOMER SUPPORT).
• Carefully study and understand all
of
the emphasized material (Notes, Cautions and
Warnings) in the repair procedure.
• Disconnect the electrical system from the battery and relieve the system water pressure
before performing any repair.
•
If
a repair is attempted while the battery is connected, or the water system is
pressurized, take all the extra precautions that are necessary to safely perform the repair
and avoid personal injuries or equipment damage.
• Routinely check for loose belts or wire connections.
© Copyright October,
2001
NLB Corporation
8-5
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