JLG 20VP (3120849) Service Manual User Manual
Page 55
SECTION 2 - SERVICE PROCEDURES
3120849
– JLG Lift –
2-37
Inspection and Maintenance Codes:
1.
Check for proper and secure installation.
2.
Check for visible damage and legibility.
3.
Check for proper fluid level.
4.
Check for any structural damage; cracked or broken
welds; bent/warped surfaces; broken cable strands.
5.
Check for leakage.
6.
Check for presence of excessive dirt or foreign
material.
7.
Check for proper operation and freedom of move-
ment.
8.
Check for excessive wear or damage.
9.
Check for proper tightness and adjustment.
10.
Drain, clean and refill.
11.
Check for proper operation while pump/motor is
running.
12.
Check for proper lubrication.
13.
Check for evidence of scratches, nicks or rust and
for straightness of rod.
14.
Check for condition of element; replace as neces-
sary.
Table 2-3. Preventive Maintenance & Inspection Schedule.
AREA ON MACHINE
INTERVAL
PLATFORM
(10 HRS.)
DAILY
(50 HRS.)
WEEKLY
(200 HRS.)
MONTHLY
(500 HRS.)
3 MONTHS
(1000 HRS.)
6 MONTHS
(2000 HRS.)
1 YEAR
Platform Controller (all functions)
1,11
Placards and Decals
1,2
Control Tags
1,2
Electrical Cables
1,8
Handrail and Bar Gate
1,4
MAST
Mast Chains and all component parts
1,4,7,9
12
Mast Sections
1,4,7
Mast Sequencing Cables
1,4,7,9
Speed/PHP Limit Switches
1,7,9
BASE FRAME
Batteries 1,3
5
Battery Charge
1
Power Cables To Platform
1,8
Electric Motor/Hydraulic Pump Unit
1
5
Hydraulic Hoses and Fittings
1
5
Hydraulic Oil Reservoir *
3
5
4
Hydraulic Oil Reservoir Breather
6,14
Manual Descent Valve
1,7
Lift Cylinder
1
5,6,13
4
Placards and Decals
1,2
Wheels and Casters
1
8,9
12
Wheel Bearings
8
12
Electric Drive Wheel Motors
1,7
Electric Drive Wheel Gear Box **
Torque Limiting Clutch
1,6,9
Power Switch (Ground Control Box)
1,11
Control Tags
1,2
Hoses and Cables
1,8
Bubble Level Indicator
1,2
* Inspection and Maintenance Code 10 to be performed every two years.
** Maintenance Code 10 to be performed only when serviced, requires 171 cc’s to fill.