Volvo 940 - Manual (Page 116)

1993 Volvo 940
The differential automatically locks at speed between 3 - 25 mph (5 - 40 km/h) if either of the drive
wheels begins to lose traction. The differential lock improves power distribution to the drive wheels in
slippery conditions, shifting power to the wheel with best traction. It also functions when the
transmission is in reverse.
pg. 4:16 Towing a trailer
When preparing for trailer hauling, observe the following:
●
Use a trailer hitch which meets Federal Safety Standards for rear end collisions (FMVSS 301-75) for
trailer weights exceeding 2000 lbs. (908 kg), use only a trailer hitch offered as a Genuine Volvo
Accessory. Since the automatic transmission is subject to increased load and temperature, certain
vehicles are equipped with an extra oil cooler as standard equipment. Consult your Volvo dealer for
additional information.
●
Maximum trailer weight recommended by
Volvo is:
Trailers without brakes : 1540 lbs (700kg)
Trailers with brakes: 2" ball - 3300 lbs (1500 kg), 1 7/8" ball - 2000 lbs (908 kg).
Observe legal requirements of the state in which the vehicles are registered.
All Volvo models are equipped with energy-absorbing shock-mounted bumpers. Trailer hitch
installation should not interfere with the proper operation of this bumper system.
WARNING! Never connect a trailer's hydraulic brake system directly to the vehicle brake system, nor
a trailer's lighting system directly to the vehicle lighting system. Consult your nearest authorized
Volvo dealer for correct installation.
WARNING! Bumper-attached trailer hitches must not be used on Volvos, nor should safety chains be
attached to the bumper. Trailer hitches attaching to the vehicle rear axle must not be used.
Trailer towing does not normally present any particular problems, but take into consideration:
●
Increase tire pressure to recommended full-load pressure. See section "Wheels and tires".
●
Recommended hitch tongue load is 165 (75 kgs) for trailer weights above 2,650 lbs (1,200 kgs) and
110 lbs (50 kgs) for trailer weights below 2,650 lbs (1,200 kgs).
●
for trailer weights between 2,650-3,300 lbs (1,200-1,500 kgs) a top speed of 50 mph (80 km/h) should
never be exceeded.
●
Engine and transmission are subject to increased loads. Therefore, engine coolant temperature should
be closely watched when driving in hot climates or hilly terrain. Use lower gear and turn off air
conditioner if temperature gauge pointer enters the red range.
●
Disengage the overdrive on models with automatic transmission
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