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It is also recommended that the same maintenance steps be performed during pre-delivery and every 180
days, thereafter.
1. Check 1" nuts at front spring beam pivots to assure that 500 to 550 ft. lbs. torque is maintained.
2. Check air spring mounting bolts to assure the following torque values are maintained; top mounting
bolts (1/2" and 3/4")—50 ft. lbs.; air spring bracket attachment bolt (1/2") to the spring beam
40—60 ft. lbs.
3. Check 3/4" spring beam to axle attachment bracket nuts to assure 250 to 300 ft. lbs. is maintained.
4. Check 1/2" upper and lower shock bracket attachment nuts to assure that 110 to 120 ft. lbs. is main-
tained.
5. Check 7/8" track rod attachment end nuts to assure that 375—425 ft. lbs. is maintained.
6. Check 7/8" nuts at secondary leaf/axle bracket connection to assure that 400 to 425 ft. lbs. is main-
tained.
7. Check 1/2" track rod attachment bracket nuts to assure that 110 to 120 ft. lbs. is maintained.
8. Check 1/4" nuts in the height control valve linkage to assure that 6 ft. lbs. torque is maintained.
9. Check 3/4" shock absorber mounting nuts on front suspension to assure that 150 to l75 ft. lbs. torque
is maintained.
10. Check 7/8" u-bolt nuts on rear suspension to assure 380-405 ft. lbs. torque is maintained.
11. Check 3/4" shock absorber attaching bracket fasteners to assure 375-425 ft. lbs. torque is maintained.
To assure an accurate torque reading, the torque tool used for checking torque must provide a correct
measurement. Also, the nut and bolt should be lightly lubricated and clean (free of any dirt, grit, rust, etc.).
Alignment is pre-set by the vehicle manufacturer, and welded in-place, however, suspension alignment
should be checked when any one of the following conditions prevail; 1) discovery of a loose suspension
fastener (loose is defined as any torque below the recommended torque); 2) discovery of elongated holes in a
suspension component; 3) when bushings are being replaced; 4) excessive or abnormal tire wear.
Failure to maintain the specified torque values and/or to replace worn parts can cause component and/
or system failure resulting in an accident with consequent injury or death.
HEIGHT CONTROL VALVE ADJUSTMENT INSTRUCTIONS
REYCO 101A-AR REAR AIR SUSPENSION
1. Position unladen vehicle on a level floor with air pressure maintained in excess of 65 PSI. Disconnect
the link and move the control valve actuation levers to ensure all the air is exhausted from the air
springs.
2. Connect the link to the valve and let the air springs fill with air until it shuts off. Measure distance
from axle to frame and adjust to proper ride height (7.25" from bottom of frame to center of axle or
25.50" shock length). Adjusting for proper mounting height is done by trial and error by: 1)moving
the linkage between the available holes in the lower mounting bracket or by: 2) loosening the clamp
on the vertical rod boot and carefully sliding the boot up or down until the proper dimension is
reached.
3. Recheck by disconnecting the link and deflating the air springs about halfway. When the link is
reconnected, the spring should re-inflate to the proper mounting height. Allow approximately 2 to 7
seconds for air to begin flowing.
