Maintenance And Etc.,. Flashcards
(24 cards)
R-2
Re-reeve
Every 24 months or 5000 shots
First thing you do for a R-2
R-2: first thing you do for a re-Reeve is measure tail rods. They increase the amount of cables and reduces slack
How many maintenance checks are there
17
R-4
Pre op
R-11
And how many
- Post op
Slip rings- inspect traverse carriage slippers every 4500 +/- 500 shots
R-21
Inspect re and fair land sheave groove wear… 4000 +/-500 shots
R-16
Every 200-300 shots: grease the sheaves
Post op
Put in mid Install drum lock pin Inspect: Tension rod (min 7ft) and Lube it Tensioner tail rod Traverse carriage Exposed volume normal Exposed stroke control Add grease to screw Grease zerk fittings Close valves Ensure LPL is in
Pre op
Put it in the mid
Pin it
Make sure all valves are open ( rotary, internal/external)
Open all main isolation valves (charge ngl to 250-300)
Ensure supply and discharge valves to all pumps are open
L/v are greased (>1000 shots, 20-30 shots) (
Last things to vent for pre op after removing the pin
Closing side of your launch valves Both CSV High points in LV Vent accumulator Drain condensation from the bottom of the accumulator Vent deck tensioner (for dynos)
Retract fluid flow
SR energized then the pilot valve will direct 2500 psi of fluid to retract dump valve -> advance directional valve-> retract side of the hydraulic motor -> gravity tank-> retract directional valve. ->75 feet from fully aft, deceleration phase. -> dump valve closes the retract directional valve-> causing the grab to decelerate reducing hydraulic pressure -> 39 feet fully forward, maneuvering phase-> by actuating the retract cut-off limit switch, shifting Pistons on neutral and pilot valve -> EA energizes-> SR de- energizes-> EA provide enough fluid for it to maneuver-> EA will de-energize when the traverse carriage actuated the limit FA-> exhaust valves will close-> cat ready
A-1
Hydraulic fluid sample
Q-9
Clean cir. Pump filter
A-2
Lubricate flex couplings
A-7
Lubricate motor
24m-1r
Calibrate relief valve
24m-5r
Testing relief valve
Q-1
Zinc anode
Q-2R
Hydraulic fluid cooler
S-1
Testing bridal tensioner relief valve
S-2
Testing pump output
A-5
Clean and inspect critical isolation valve
Blow down hydros
Close air flask Red- air blow down valve Black- closed air flask Black- closed medium air Open up hydros blowdown valves
R-39
Tensioner fully aft, deck tensioner stroked in
(Christmas lights)
(Not a maintenance)
