J&M 1592 Running Gear - Manual (Page 7)

7
SET-UP INSTRUCTIONS FOR RUNNING GEAR
IMPORTANT: Set-up work to be performed by qualified servicemen only.
Mount tires on the wheels and inflate per the tire manufacturer’s recommendations and instructions.
Mount the wheels to the hubs and tighten the flat hub nuts to 260 ft. lb torque. Check the hub nuts
after the first hour of operation, then every 10 hours of operation for the first 40 hours of use. These
nuts must be kept tight at all times. Wheels that are improperly installed on the running gear,
resulting in product failure, will nullify the warranty and shift the burden of liability to the owner/
operator of the equipment.
Slide the coupling pole into the front and back assemblies, slipping the collar in the back assembly.
When mounting to a 540SD gravity box, spacing of the coupling pole (approximate distance between
holes on the coupling pole) should be 44”. Distance from center of axle to center of axle is
approximately 124”.
Attach either the rocking bolster or the standards (box attachment brackets) to the running gear.
Fasten the tongue to the front assembly using the tongue bolt (remove paint from the bolt before
attaching) and jam nut. Attach the tongue spring to the bracket on the tongue and hitch assembly.
For running gears without brakes, check underneath the tongue and make sure that the safety catch
(7/8” x 2 1/4” bolt w/spacer) is secure.
Mounting Brake Lines to Running Gear with Hydraulic Disc Brakes. IMPORTANT: Running Gears
with Hydraulic Disc Brakes should be set up immediately after delivery from factory to prevent dirt
and moisture from entering brake system. Attach the brake lines and hoses per drawing for Optional
Hydraulic Disc Brake System. Be careful not to over tighten the fittings and strip the threads.
Always use DOT 5 Silicone Brake Fluid or equivalent. On Optional Hydraulic Disc Brakes Systems,
be sure to remove paint from disc brake rotors before bleeding brake lines. Failure to
remove paint will cause brakes to not work properly. If running gear is stored for an extended
period of time, the brake discs will need to be cleaned with steel wool (be sure the brake
pads are not rusted fast to the brake disc). Also, check Caliper Retainer Area for free
movement. Free retainer and caliper from any seized paint or dirt by tapping retainer and
spring with a rubber or wood mallet.
1)
2)
3)
5)
6)
4)
SAFETY SIGNS
ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
Replace Immediately If Damaged or Missing!
IMPORTANT: Install new safety signs if the old signs are
destroyed, lost, painted over or cannot be read. When
parts are replaced that have safety signs, make sure you
install a new sign with each new part. New signs are
available from the manufacturer or your authorized dealer. Ref. # Description Part # Req’d
1 Sign, Caution DC-111 1
2 Sign, Fluid (Brakes) DC-113 1
3* Sign, Brakes Deactivated DC-122 1
4* Sign, Brakes Activated DI-123 1
DC-122
DI-123
* Decals DC-122 and DI-123
are located on the Brake Lock-
Out Latch (#21) used on Disc
Brake Systems Only.
DC-111 DC-113