J&M 2494 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 hub nuts to 380 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.
Spacing of the coupling pole (approximate distance between holes on the coupling pole) should be
53” (650SD) or 73” (750SD). Distance from center of axle to center of axle is approximately 137”
(650SD) or 157” (750SD).
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 equipped 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 (see “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.
1)
2)
3)
5)
6)
4)
DC-111 DC-113
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.