JLG 450A_AJ Series II Service Manual - Manual (Page 38)

SECTION 2 - GENERAL
2-2 – JLG Lift – 3121180
2.2 SERVICE AND GUIDELINES
General
The following information is provided to assist you in the
use and application of servicing and maintenance proce-
dures contained in this manual.
Safety and Workmanship
Your safety, and that of others, is the first consideration
during maintenance of equipment. Always be conscious
of weight. Never attempt to move heavy parts without the
aid of a mechanical device. Do not allow heavy objects to
rest in an unstable position. When raising a portion of the
equipment, ensure that adequate support is provided.
Cleanliness
1. The most important single item in preserving the
long service life of a machine is to keep dirt and for-
eign materials out of the vital components. Precau-
tions have been taken to safeguard against this.
Shields, covers, seals, and filters are provided to
keep air, fuel, and oil supplies clean; however, these
items must be maintained on a scheduled basis in
order to function properly.
2. At any time when air, fuel, or oil lines are discon-
nected, clean openings, fittings, and adjacent areas.
As soon as a line or component is disconnected,
cap or cover all openings to prevent entry of foreign
matter.
3. Clean and inspect all parts during servicing or main-
tenance. Ensure all passages and openings are
unobstructed. Cover all parts to keep them clean. Be
sure all parts are clean before they are installed.
Keep new parts in their containers until needed.
Components Removal and Installation
1. Use adjustable lifting devices if mechanical assis-
tance is required. All slings (chains, cables, etc.)
should be parallel to each other and as near perpen-
dicular as possible to top of part being lifted.
2. Should it be necessary to remove a component on
an angle, keep in mind the capacity of an eyebolt or
similar bracket lessens, as the angle between the
supporting structure and component becomes less
than 90 degrees.
3. If a part resists removal, check to see whether all
nuts, bolts, cables, brackets, wiring, etc., have been
removed and no adjacent parts are interfering.
Table 2-1. Inspection and Maintenance
Type Frequency
Primary
Responsibility
Service
Qualification
Reference
Pre-Start Inspection Prior to use each day; or
At each Operator change.
User or Operator User or Operator Operator and Safety Manual
Pre-Delivery
Inspection
Prior to each sale, lease, or
rental delivery.
Owner, Dealer, or User Qualified JLG
Mechanic
Service and Maintenance
Manual and applicable JLG
inspection form.
Frequent Inspection In service for 3 months or 150 hours, which-
ever comes first; or
Out of service for a period of more than 3
months; or
Purchased used.
Owner, Dealer, or User Qualified JLG
Mechanic
Service and Maintenance
Manual and applicable JLG
inspection form.
Annual Machine
Inspection
Annually, no later than 13 months from the
date of the prior inspection.
Owner, Dealer, or User Factory-Certified
Service Technician
Service and Maintenance
Manual and applicable JLG
inspection form.
Preventative
Maintenance
At intervals as specified in the Service and
Maintenance Manual.
Owner, Dealer, or User Qualified JLG
Mechanic
Service and Maintenance
Manual