Liquid Cooling System; Radiator - Arctic Cat PROWLER HDX 2015 Service Manual

2. Remove the Phillips-head screw on the back side of
the pump and separate the pump housing and cover.
Note the position of the inner and outer rotors and
alignment pin for assembly.
3. Remove oil pump components.
CLEANING AND INSPECTING
1. Clean all oil-pump components.
2. Inspect the rotors for scoring and gouges.
3. Inspect the alignment pin, driveshaft, and driven
sprocket for damage.
4. Inspect the pump housing and cover for cracks or
damage.
ASSEMBLING/INSTALLING
1. Place the rotors into the pump housing making sure
the alignment pin is in the groove of the rotor.
2. Place the cover onto the pump housing.
3. Secure the pump cover with the Phillips-head screw
coated with red Loctite #271. Tighten to 8 ft-lb.
4. Install the oil pump into the engine (see Right-Side
Components in the Engine/Transmission section).

Liquid Cooling System

When filling the cooling system, use premixed Arctic Cat
Antifreeze. While the cooling system is being filled, air
pockets may develop; therefore, open the bleed screw on
the thermostat housing to allow air to bleed from the
cooling system. When clear coolant (no bubbles) is pres-
ent, tighten the bleed screw securely; then fill the cooling
system to the bottom of the stand pipe in the radiator
neck. Run the engine for five minutes after the initial fill,
shut the engine off, and then "top-off" the cooling system
to the bottom of the stand pipe in the radiator neck.
CAUTION
After operating the vehicle for the initial 5-10 minutes,
stop the engine, allow the engine to cool down, and
check the coolant level. Add coolant as necessary.

Radiator

REMOVING
1. Remove the two sheet metal screws securing the
dash assembly to the frame (center front).

NOTE: Steps 1-3 are for models equipped with a
storage box only.
124
2. Remove four torx-head screws (A) securing the under-
hood storage box to the frame; then remove two cap
screws with nuts (B) at the front of the storage box.
3. While lifting up on the front of the storage box, pry the
rear center clear of the center dash mount and remove
the storage box.
4. Drain the coolant into a suitable container; then discon-
nect the cooling fan wire connector from the main har-
ness.
HDX162A
PR182A
PR186
PR183A