Hose Or Fitting Replacement; Procedure For Installing Hydraulic Fittings And Hoses - Blizzard POWER PLOW 8100PP Owner's Manual

Hose or Fitting Replacement

WARNING
Lower blade when vehicle is parked. Keep
8' clear of the blade. Temperature changes
could change hydraulic pressure, causing
the blade to drop unexpectedly or damaging
hydraulic components. Failure to do this
could result in serious personal injury.
DO NOT use thread sealant/tape on hoses or fi ttings.
This could damage product. Follow recommended
replacement procedures for fi ttings and hoses.
1. Lower snowplow completely, and turn control OFF.
NOTE: Loosen breather slowly to relieve any
pressure in the reservoir.
2. Carefully note hose routing for proper reassembly.
3. Loosen hoses or fi ttings slowly to relieve any
residual pressure.
4. To remove a hose, loosen and unscrew the hose
fl are nut from the fi tting.
5. To remove a fi tting, loosen the jam nut and
unscrew the fi tting from the port.
Lit. No. 40691, Rev. 05
MAINTENANCE
Procedure for Installing Hydraulic Fittings
and Hoses
NOTE: Overtightening JIC hose fi tting ends will
result in a fractured fi tting.
DO NOT use any type of sealant or tape on the fi ttings
or hoses. This could damage product. Always use two
wrenches to ensure proper tightening of fi ttings and
hoses.
Use the following procedure to install SAE O-ring
fi ttings in valve block and rams:
1. Turn jam nut on fi tting as far back as possible.
2. Lubricate O-ring with clean hydraulic fl uid.
3. Screw fi tting into port by hand until the washer
contacts the port face and shoulder of the jam nut
threads.
4. Unscrew fi tting to proper position, no more than
one full turn.
5. Using two wrenches, hold fi tting body in position
and tighten jam nut until the washer again
contacts port face, then tighten an additional
1/8 to 1/4 turn to lock fi tting in place. Final torque
on the jam nut should be approximately 20 ft-lb.
Use the following procedure to install hydraulic
hoses:
1. Screw fl are nut onto fi tting fl are and hand tighten.
2. Align hose so there are no twists or sharp bends
and so it will not be pinched or pulled by moving
parts.
3. Using two wrenches, hold the hose in position
and tighten fl are nut 1/8 to 1/4 turn beyond hand
tight. Final torque on the fl are nut should be
approximately 20 ft-lb.
35 May 1, 2021