Hino S5-LJ05E04A Workshop Manual page 11

TOWING
• When being towed, always place the gear shift lever in "Neutral" and release the parking brake completely. In order to
protect the bumper, fit a protection bar against the lower edge of the bumper and put a wood block under the frame
near the No. 1 cross member when attaching the towing chain. Never lift or tow the vehicle if the chain is in direct con-
tact with the bumper.
1. Towing procedures
(1) Make sure that the propeller shaft of the vehicle to be towed is removed. When the differential gear or rear axle shaft
is defective, remove both right and left rear axle shafts, then cover the hub opening to prevent loss of axle lubricant
and entry of dirt or foreign matter.
(2) Use a heavy duty cable or rope when towing the vehicle. Fasten the cable securely to the towing hook on the frame.
(3) The angle of pulling direction of the cable fastened to the towing hook must not exceed 15° in horizontal and vertical
directions from the straight ahead, level direction. Avoid using the hook in a way that subjects it to jerk, as in towing a
vehicle trapped in a gutter.
(4) Keep the gear shift lever in Neutral.
(5) Make sure that the starter switch is kept in the "ON" position, if the engine is not running.
(6) Make sure that the engine of the towed vehicle is kept running. If the engine is off, no compressed air/ no vacuum will
be available for the brake. This is dangerous, as the brake system does not function if the engine is not running.
In addition, the power steering system will not function. The steering wheel, therefore, will become unusually hard to
turn, making it impossible to control the vehicle.
(7) Note that the engine brake and exhaust brake cannot be applied, if the propeller shaft is removed.
(8) Make a slow start to minimize shock. Towing speed should be less than 30 km/h {18 mile/h}.
2. If the engine of the towed vehicle is defective, make sure that the vehicle is towed only by a tow truck
designed for that purpose.
(1) Front end towing (with front wheels raised off the ground)
When towing from the front end with the front wheels raised off the ground, remove the rear axle shafts to protect the
transmission and differential gears from being damaged. The hub openings should be covered to prevent the loss of
axle lubricant or the entry of dirt or foreign matter. The above-mentioned precautions should be observed for vehicles
equipped with either manual or automatic transmission, and for even short distance towing. After being towed, check
and refill the rear axle housing with lubricant if necessary.
(2) Rear end towing
When being towed with the rear wheels raised off the ground, fasten and secure the steering wheel in a straight-
ahead position.
CLEAN AIR ACT
1. Heavy-duty engine rebuilding practices.
§ 86.004-40
•
The provisions of this section are applicable to heavy-duty engines subject to model year 2004 or later standards and
are applicable to the process of engine rebuilding (or rebuilding a portion of an engine or engine system). The pro-
cess of engine rebuilding generally includes disassembly, replacement of multiple parts due to wear, and reassembly,
and also may include the removal of the engine from the vehicle and other acts associated with rebuilding an engine.
Any deviation from the provisions contained in this section is a prohibited act under section 203(a) (3) of the Clean Air
Act (42 U.S.C. 7522(a) (3)).
(1) When rebuilding an engine, portions of an engine, or an engine system, there must be a reasonable technical basis
for knowing that the resultant engine is equivalent, from an emissions standpoint, to a certified configuration (i.e., tol-
erances, calibrations, specifications) and the model year(s) of the resulting engine configuration must be identified. A
reasonable basis would exist if:
a. Parts installed, whether the parts are new, used, or rebuilt, are such that a person familiar with the design and
function of motor vehicle engines would reasonably believe that the parts perform the same function with respect
to emissions control as the original parts; and
b. Any parameter adjustment or design element change is made only:
•
In accordance with the original engine manufacturer's instructions; or
•
Where data or other reasonable technical basis exists that such parameter adjustment or design element change,
when performed on the engine or similar engines, is not expected to adversely affect in-use emissions.
(2) When an engine is being rebuilt and remains installed or is reinstalled in the same vehicle, it must be rebuilt to a con-
figuration of the same or later model year as the original engine. When an engine is being replaced, the replacement
engine must be an engine of (or rebuilt to) a configuration of the same or later model year as the original engine.
GENERAL INTRODUCTION 1–7