4
6. MAINTENANCE
The DD2000 is designed to last for many years without any major maintenance. Periodically, check
the following items:
Each Time the System is Used:
Listen for unusual noises and watch to ensure proper movement of the system. If there is a prob-
lem, correct it before continuing to use the system.
Annually:
Check tightness of all fasteners. (Refer to Torque Table below)
Visually inspect for cracks or damage at all pivots on the framework and torsion bar and replace piv-
ot bushings or pins if necessary.
Check for cracks in the framework and decks and repair or replace if necessary.
Verify that the electrical control system functions as intended.
TORQUE TABLE
FASTENER
TORQUE
3/8-UNC NUTS
30-40 FT-LBS
7/16-UNC NUTS
50-60 FT -LBS
1/2-UNC NUTS
80-100 FT-LBS
Park the vehicle in a level, flat area, and apply the parking brake before performing any
maintenance.
Turn the
“System Lock”
key switch to the “Off” position and remove the key before performing any
maintenance.
Perform maintenance work from outside the deck, whenever possible.
CAUTION
Perform these checks with the Upper Deck lowered.
CAUTION